API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Feb 05, 2023 Wind Spacecraft / (Earth) -8 https://wind.nasa.gov/ https://hpde.io/SMWG/Observatory/Wind https://www.nasa.gov/feature/goddard/2019/25-years-of-science-in-the-solar-wind BACKGROUND: The primary science objectives of the Wind mission are: - Provide plasma, energetic particle, and magnetic field data for magnetospheric and ionospheric studies - Investigate plasma processes occurring in the near-Earth solar wind - Provide baseline, 1 AU, ecliptic plane observations for inner and outer heliospheric missions Wind is a spin-stabilized spacecraft launched on a Delta II 7925-10 rocket 1994-Nov-1 @ 09:31 UTC from pad 17B at Cape Canaveral, FL. The spacecraft has visited many regions of the near-Earth space environment. For the first nine months of operation, Wind was placed in a double-lunar swingby orbit near the ecliptic plane, with apogee from 80 to 250 Earth radii and perigee of between 5 and 10 Earth radii. In this orbit, lunar gravity assists were used to keep its apogee over the day hemisphere of the Earth, and magnetospheric observations were made through several orbit passages. Wind was then temporarily inserted into a small amplitude "halo" orbit, about the sunward Sun-Earth gravitational equilibrium point (SEMB-L1), varying from 235 to 265 Earth radii (Re). In 2001 and 2002, Wind had a distant prograde orbit that took it +/- 300 Re leading and lagging Earth. This orbit provided a wide baseline to study solar wind structures and correlations. In 2003 (Nov 2003 to Feb 2004), Wind reached the L2 Lagrange point 240 Re anti-sunward from Earth providing a 500 Re spatial separation from ACE solar wind observations along with measurements of the distant Earth magnetotail. In late June of 2004, Wind used its last lunar gravity assist to insert into a L1 Lissajous orbit to observe the unperturbed solar wind prior to it impacting the magnetosphere of Earth, providing an approx. one-hour warning of changes in the solar wind. On June 26, 2020, Wind completed the first halo orbit insertion maneuver. A second was completed on August 31, 2020, a third on November 9, 2020. The maneuvers were necessary to prevent Wind from entering the solar exclusion zone around the solar disk, where solar radio emissions can interfere with spacecraft communications. The halo orbit is an ellipse tilted with respect to the ecliptic plane, while Lissajous has an out-of-plane (z) component oscillation decoupled from in-plane components. Wind currently has enough fuel to continue its mission at L1 into the 2070s. SPACECRAFT PHYSICAL CHARACTERISTICS: Bus size : 2.4 x 1.8 m cylinder Power : 370 Watts (body mounted solar panels) Launch mass: 1250 kg Dry mass : 950 kg Extension : Long wire spin-plane antennas, inertial booms, and spin-plane appendages to support sensors. Experiment booms deployed along both Z axes. Spin rate : 20 rpm (~3 s period) w/axis < 1 degree from normal to ecliptic (spacecraft +Z spin axis aligned with south ecliptic pole) SCIENCE INSTRUMENTS 1. Magnetic Field Investigation (MFI) 2. Solar Wind Experiment (SWE) Faraday Cup - Ion Data Electron Data 3. 3D Plasma Analyzer 4. SMS Suprathermal Particle Data 5. EPACT High Energy Particle Data 6. WAVES Radio and Plasma Waves Data 7. KONUS and TGRS Data (gamma ray) SPACECRAFT TRAJECTORY: This trajectory is a concatenation of weekly predictions provided by GSFC. Based on tracking data up to 2023-Jan-31, prediction thereafter. Trajectory currently starts in 2019, but will eventually be extended to earlier dates. Trajectory name Start Stop ---------------------------- ----------- ----------- Wind_merged 2019-Oct-08 2023-Apr-25 ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Mon Feb 6 04:52:16 2023 Pasadena, USA / Horizons ******************************************************************************* Target body name: Wind (spacecraft) (-8) {source: Wind_merged} Center body name: Earth (399) {source: DE441} Center-site name: SATINO Remote Obs., Haute Provence ******************************************************************************* Start time : A.D. 2022-Dec-08 00:00:00.0000 UT Stop time : A.D. 2022-Dec-22 00:00:00.0000 UT Step-size : 10 minutes ******************************************************************************* Target pole/equ : No model available Target radii : (unavailable) Center geodetic : 5.71240000,43.9320198,0.6616794 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 5.71240000,4601.19667,4403.1141 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : ITRF93 {East-longitude positive} Center radii : 6378.1 x 6378.1 x 6356.8 km {Equator, meridian, pole} Target primary : Earth (R_eq= 6378.137) km Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441} Rel. light bend : Sun {source: DE441} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL RTS-only print : NO EOP file : eop.230203.p230428 EOP coverage : DATA-BASED 1962-JAN-20 TO 2023-FEB-03. PREDICTS-> 2023-APR-27 Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation ( 0.0deg=YES),Airmass (>38.000=NO), Daylight (YES) Table cut-offs 2: Solar elongation ( 12.0,180.0=YES),Local Hour Angle( 0.0=NO ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) *************************************************************************************************************************************************************************************************************************************************** Date__(UT)__HR:MN R.A._____(ICRF)_____DEC Azi____(a-app)___Elev APmag S-brt r rdot delta deldot S-O-T /r S-T-O T-O-M/MN_Illu% RA_3sigma DEC_3sigma Sky_motion Sky_mot_PA RelVel-ANG *************************************************************************************************************************************************************************************************************************************************** $$SOE >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-08 16:10 Cm 18 44 24.54 -22 14 52.5 221.344621 12.458885 n.a. n.a. 0.975546110951 -0.3173066 0.01041059513647 0.2762345 24.0538 /T 155.6970 161.8/ 99.6670 n.a. n.a. 1.0887919 352.50812 63.618128 2022-Dec-08 16:20 Cm 18 44 24.47 -22 14 41.5 223.365885 11.245013 n.a. n.a. 0.975544838413 -0.3172576 0.01041172232706 0.2857568 24.0468 /T 155.7040 161.9/ 99.6580 n.a. n.a. 1.1117473 356.94511 63.911536 2022-Dec-08 16:30 Cm 18 44 24.46 -22 14 30.3 225.348992 9.985431 n.a. n.a. 0.975543566070 -0.3172087 0.01041288685036 0.2948471 24.0401 /T 155.7108 162.0/ 99.6489 n.a. n.a. 1.1397300 1.3543867 64.054779 2022-Dec-08 16:40 Nm 18 44 24.51 -22 14 18.8 227.294993 8.682508 n.a. n.a. 0.975542293924 -0.3171597 0.01041408693899 0.3034883 24.0336 /T 155.7173 162.1/ 99.6399 n.a. n.a. 1.1729669 5.6965627 64.055281 2022-Dec-08 16:50 Nm 18 44 24.63 -22 14 07.0 229.205132 7.338553 n.a. n.a. 0.975541021975 -0.3171108 0.01041532075782 0.3116637 24.0274 /T 155.7236 162.1/ 99.6308 n.a. n.a. 1.2115739 9.9355715 63.921508 2022-Dec-08 17:00 Nm 18 44 24.82 -22 13 54.9 231.080816 5.955808 n.a. n.a. 0.975539750221 -0.3170618 0.01041658640760 0.3193579 24.0214 /T 155.7296 162.2/ 99.6216 n.a. n.a. 1.2555598 14.040511 63.662743 2022-Dec-08 17:10 Am 18 44 25.07 -22 13 42.6 232.923599 4.536448 n.a. n.a. 0.975538478665 -0.3170128 0.01041788192859 0.3265563 24.0158 /T 155.7353 162.3/ 99.6125 n.a. n.a. 1.3048367 17.986793 63.288801 2022-Dec-08 17:20 Am 18 44 25.40 -22 13 30.1 234.735162 3.082574 n.a. n.a. 0.975537207304 -0.3169638 0.01041920530442 0.3332453 24.0103 /T 155.7407 162.4/ 99.6034 n.a. n.a. 1.3592344 21.756594 62.809711 2022-Dec-08 17:30 Am 18 44 25.80 -22 13 17.4 236.517297 1.596215 n.a. n.a. 0.975535936141 -0.3169148 0.01042055446596 0.3394121 24.0052 /T 155.7458 162.5/ 99.5942 n.a. n.a. 1.4185163 25.338655 62.235427 2022-Dec-08 17:40 Am 18 44 26.28 -22 13 04.5 238.271894 0.079326 n.a. n.a. 0.975534665174 -0.3168658 0.01042192729534 0.3450451 24.0004 /T 155.7507 162.6/ 99.5851 n.a. n.a. 1.4823956 28.727622 61.575576 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-09 16:10 C 18 47 24.06 -22 05 54.4 221.617915 12.474803 n.a. n.a. 0.975364909170 -0.3101387 0.01044537042325 0.2769752 23.7442 /T 156.0088 172.2/ 97.7054 n.a. n.a. 1.0911090 349.66245 63.554645 2022-Dec-09 16:20 C 18 47 23.95 -22 05 43.5 223.638394 11.254492 n.a. n.a. 0.975363665384 -0.3100880 0.01044650052826 0.2864693 23.7371 /T 156.0159 172.3/ 97.6807 n.a. n.a. 1.1094024 354.15520 63.940242 2022-Dec-09 16:30 C 18 47 23.90 -22 05 32.3 225.620646 9.988694 n.a. n.a. 0.975362421800 -0.3100374 0.01044766784859 0.2955293 23.7303 /T 156.0228 172.4/ 97.6562 n.a. n.a. 1.1327694 358.64896 64.169646 2022-Dec-09 16:40 Nm 18 47 23.91 -22 05 20.9 227.565755 8.679780 n.a. n.a. 0.975361178420 -0.3099867 0.01044887060789 0.3041378 23.7237 /T 156.0294 172.4/ 97.6318 n.a. n.a. 1.1615026 3.1010953 64.249223 2022-Dec-09 16:50 Nm 18 47 23.99 -22 05 09.1 229.474994 7.330061 n.a. n.a. 0.975359935243 -0.3099360 0.01045010696235 0.3122785 23.7173 /T 156.0358 172.5/ 97.6075 n.a. n.a. 1.1957761 7.4709381 64.186660 2022-Dec-09 17:00 Nm 18 47 24.14 -22 04 57.2 231.349801 5.941782 n.a. n.a. 0.975358692269 -0.3098854 0.01045137500427 0.3199359 23.7113 /T 156.0419 172.6/ 97.5833 n.a. n.a. 1.2356466 11.722191 63.990774 2022-Dec-09 17:10 Am 18 47 24.36 -22 04 44.9 233.191757 4.517116 n.a. n.a. 0.975357449499 -0.3098347 0.01045267276574 0.3270955 23.7054 /T 156.0477 172.6/ 97.5593 n.a. n.a. 1.2810610 15.824652 63.671233 2022-Dec-09 17:20 Am 18 47 24.65 -22 04 32.5 235.002567 3.058164 n.a. n.a. 0.975356206932 -0.3097840 0.01045399822253 0.3337437 23.6999 /T 156.0533 172.7/ 97.5355 n.a. n.a. 1.3318704 19.755181 63.238206 2022-Dec-09 17:30 Am 18 47 25.01 -22 04 19.9 236.784047 1.566953 n.a. n.a. 0.975354964568 -0.3097332 0.01045534929792 0.3398680 23.6947 /T 156.0585 172.8/ 97.5118 n.a. n.a. 1.3878471 23.497877 62.702017 2022-Dec-09 17:40 Am 18 47 25.45 -22 04 07.1 238.538110 0.045437 n.a. n.a. 0.975353722408 -0.3096825 0.01045672386682 0.3454567 23.6897 /T 156.0635 172.8/ 97.4883 n.a. n.a. 1.4487026 27.043634 62.072829 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-10 16:10 C 18 50 16.63 -21 57 00.0 221.914414 12.475045 n.a. n.a. 0.975187918160 -0.3027252 0.01047992395823 0.2778702 23.4091 /T 156.3463 173.2/ 94.0439 n.a. n.a. 1.0941536 347.13726 63.489225 2022-Dec-10 16:20 C 18 50 16.49 -21 56 49.2 223.933597 11.247800 n.a. n.a. 0.975186704110 -0.3026729 0.01048105758496 0.2873302 23.4019 /T 156.3535 173.2/ 94.0039 n.a. n.a. 1.1081930 351.66682 63.958117 2022-Dec-10 16:30 C 18 50 16.40 -21 56 38.0 225.914499 9.975320 n.a. n.a. 0.975185490270 -0.3026205 0.01048222828534 0.2963537 23.3950 /T 156.3605 173.1/ 93.9642 n.a. n.a. 1.1273244 356.22479 64.266212 2022-Dec-10 16:40 N 18 50 16.38 -21 56 26.7 227.858240 8.659979 n.a. n.a. 0.975184276641 -0.3025682 0.01048343427338 0.3049233 23.3883 /T 156.3673 173.0/ 93.9247 n.a. n.a. 1.1519028 0.7663506 64.418722 2022-Dec-10 16:50 N 18 50 16.43 -21 56 15.0 229.766125 7.304089 n.a. n.a. 0.975183063221 -0.3025158 0.01048467369587 0.3130228 23.3818 /T 156.3738 172.9/ 93.8854 n.a. n.a. 1.1821607 5.2471447 64.422414 2022-Dec-10 17:00 N 18 50 16.54 -21 56 03.1 231.639623 5.909894 n.a. n.a. 0.975181850011 -0.3024634 0.01048594463603 0.3206368 23.3756 /T 156.3800 172.8/ 93.8463 n.a. n.a. 1.2182042 9.6261317 64.285476 2022-Dec-10 17:10 A 18 50 16.73 -21 55 51.0 233.480342 4.479567 n.a. n.a. 0.975180637012 -0.3024110 0.01048724511723 0.3277508 23.3697 /T 156.3859 172.7/ 93.8075 n.a. n.a. 1.2600181 13.867862 64.017254 2022-Dec-10 17:20 A 18 50 16.98 -21 55 38.7 235.290016 3.015206 n.a. n.a. 0.975179424222 -0.3023586 0.01048857310680 0.3343514 23.3641 /T 156.3916 172.6/ 93.7690 n.a. n.a. 1.3074783 17.943993 63.627890 2022-Dec-10 17:30 Am 18 50 17.31 -21 55 26.2 237.070483 1.518837 n.a. n.a. 0.975178211643 -0.3023062 0.01048992652000 0.3404260 23.3588 /T 156.3969 172.6/ 93.7308 n.a. n.a. 1.3603694 21.833916 63.127933 2022-Dec-10 17:40 Am 18 50 17.71 -21 55 13.5 238.823681 -0.007591 n.a. n.a. 0.975176999274 -0.3022538 0.01049130322404 0.3459633 23.3537 /T 156.4020 172.5/ 93.6929 n.a. n.a. 1.4184040 25.524595 62.527965 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-11 16:10 C 18 53 02.81 -21 48 10.5 222.232005 12.460196 n.a. n.a. 0.975015279292 -0.2950679 0.01051426333112 0.2788403 23.0505 /T 156.7076 163.3/ 88.8574 n.a. n.a. 1.0973634 344.92141 63.427070 2022-Dec-11 16:20 C 18 53 02.63 -21 47 59.8 224.249408 11.225579 n.a. n.a. 0.975014095958 -0.2950139 0.01051540076966 0.2882607 23.0432 /T 156.7149 163.2/ 88.8032 n.a. n.a. 1.1075648 349.47432 63.970099 2022-Dec-11 16:30 C 18 53 02.52 -21 47 48.7 226.228495 9.946005 n.a. n.a. 0.975012912840 -0.2949598 0.01051657511728 0.2972418 23.0362 /T 156.7220 163.0/ 88.7493 n.a. n.a. 1.1228580 354.08100 64.348861 2022-Dec-11 16:40 N 18 53 02.47 -21 47 37.4 228.170421 8.623853 n.a. n.a. 0.975011729938 -0.2949058 0.01051778457764 0.3057665 23.0294 /T 156.7289 162.9/ 88.6957 n.a. n.a. 1.1436560 358.69532 64.567401 2022-Dec-11 16:50 N 18 53 02.49 -21 47 25.9 230.076528 7.261432 n.a. n.a. 0.975010547254 -0.2948517 0.01051902728758 0.3138187 23.0228 /T 156.7354 162.8/ 88.6423 n.a. n.a. 1.1702470 3.2700753 64.631504 2022-Dec-11 17:00 N 18 53 02.57 -21 47 14.1 231.948314 5.860988 n.a. n.a. 0.975009364786 -0.2947977 0.01052030132070 0.3213831 23.0166 /T 156.7417 162.7/ 88.5892 n.a. n.a. 1.2027860 7.7601717 64.548627 2022-Dec-11 17:10 A 18 53 02.72 -21 47 02.0 233.787418 4.424689 n.a. n.a. 0.975008182536 -0.2947436 0.01052160469109 0.3284452 23.0106 /T 156.7478 162.6/ 88.5364 n.a. n.a. 1.2412968 12.125388 64.327673 2022-Dec-11 17:20 A 18 53 02.95 -21 46 49.8 235.595600 2.954632 n.a. n.a. 0.975007000502 -0.2946895 0.01052293535722 0.3349917 23.0049 /T 156.7535 162.5/ 88.4840 n.a. n.a. 1.2856821 16.332448 63.978633 2022-Dec-11 17:30 A 18 53 03.25 -21 46 37.4 237.374724 1.452839 n.a. n.a. 0.975005818685 -0.2946354 0.01052429122587 0.3410102 22.9994 /T 156.7590 162.4/ 88.4319 n.a. n.a. 1.3357407 20.356121 63.512163 2022-Dec-11 17:40 A 18 53 03.62 -21 46 24.8 239.126751 -0.078744 n.a. n.a. 0.975004637086 -0.2945813 0.01052567015620 0.3464894 22.9943 /T 156.7641 162.3/ 88.3802 n.a. n.a. 1.3911887 24.179412 62.939162 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-12 16:10 C 18 55 43.12 -21 39 27.0 222.568660 12.430897 n.a. n.a. 0.974847132819 -0.2871689 0.01054835756975 0.2798105 22.6703 /T 157.0908 152.4/ 82.3395 n.a. n.a. 1.1003111 342.99784 63.370972 2022-Dec-12 16:20 C 18 55 42.92 -21 39 16.3 224.583832 11.188521 n.a. n.a. 0.974845981169 -0.2871132 0.01054949880946 0.2891858 22.6630 /T 157.0982 152.3/ 82.2729 n.a. n.a. 1.1070830 347.56537 63.979207 2022-Dec-12 16:30 C 18 55 42.78 -21 39 05.3 226.560669 9.901495 n.a. n.a. 0.974844829742 -0.2870575 0.01055067677207 0.2981191 22.6558 /T 157.1053 152.2/ 82.2065 n.a. n.a. 1.1189367 352.20962 64.420548 2022-Dec-12 16:40 N 18 55 42.71 -21 38 54.1 228.500367 8.572195 n.a. n.a. 0.974843678538 -0.2870017 0.01055188965037 0.3065934 22.6490 /T 157.1122 152.1/ 82.1403 n.a. n.a. 1.1363374 356.88380 64.697916 2022-Dec-12 16:50 N 18 55 42.70 -21 38 42.6 230.404301 7.202933 n.a. n.a. 0.974842527558 -0.2869460 0.01055313557069 0.3145926 22.6424 /T 157.1189 152.0/ 82.0744 n.a. n.a. 1.1596252 1.5385910 64.816106 2022-Dec-12 17:00 N 18 55 42.76 -21 38 30.9 232.274004 5.795950 n.a. n.a. 0.974841376802 -0.2868903 0.01055441259651 0.3221014 22.6360 /T 157.1253 151.9/ 82.0087 n.a. n.a. 1.1890020 6.1254625 64.781807 2022-Dec-12 17:10 A 18 55 42.88 -21 38 19.0 234.111143 4.353413 n.a. n.a. 0.974840226269 -0.2868345 0.01055571873220 0.3291057 22.6300 /T 157.1314 151.8/ 81.9434 n.a. n.a. 1.2245293 10.599946 64.603411 2022-Dec-12 17:20 A 18 55 43.08 -21 38 06.9 235.917507 2.877413 n.a. n.a. 0.974839075960 -0.2867788 0.01055705192697 0.3355921 22.6242 /T 157.1372 151.7/ 81.8784 n.a. n.a. 1.2661369 14.924185 64.290674 2022-Dec-12 17:30 A 18 55 43.36 -21 37 54.6 237.694987 1.369968 n.a. n.a. 0.974837925875 -0.2867230 0.01055841007877 0.3415483 22.6187 /T 157.1427 151.6/ 81.8138 n.a. n.a. 1.3136392 19.068538 63.854274 2022-Dec-12 17:40 A 18 55 43.70 -21 37 42.1 239.445567 -0.166979 n.a. n.a. 0.974836776013 -0.2866672 0.01055979103838 0.3469632 22.6134 /T 157.1480 151.5/ 81.7496 n.a. n.a. 1.3667565 23.012135 63.305347 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-13 16:10 C 18 58 18.04 -21 30 49.8 222.922632 12.387781 n.a. n.a. 0.974683596687 -0.2790331 0.01058215036326 0.2807108 22.2703 /T 157.4940 141.4/ 74.6927 n.a. n.a. 1.1027144 341.34509 63.321204 2022-Dec-13 16:20 C 18 58 17.82 -21 30 39.2 224.935149 11.137308 n.a. n.a. 0.974682477670 -0.2789757 0.01058329511408 0.2900361 22.2629 /T 157.5015 141.3/ 74.6160 n.a. n.a. 1.1064453 345.92224 63.986317 2022-Dec-13 16:30 C 18 58 17.66 -21 30 28.3 226.909332 9.842514 n.a. n.a. 0.974681358884 -0.2789184 0.01058447638118 0.2989165 22.2557 /T 157.5087 141.2/ 74.5393 n.a. n.a. 1.1152452 350.59656 64.482486 2022-Dec-13 16:40 N 18 58 17.57 -21 30 17.2 228.846418 8.505775 n.a. n.a. 0.974680240328 -0.2788610 0.01058569234599 0.3073350 22.2488 /T 157.5157 141.1/ 74.4627 n.a. n.a. 1.1296259 355.32108 64.811577 2022-Dec-13 16:50 N 18 58 17.53 -21 30 05.8 230.747816 7.129401 n.a. n.a. 0.974679122002 -0.2788036 0.01058694112386 0.3152758 22.2421 /T 157.5224 141.0/ 74.3864 n.a. n.a. 1.1499742 0.0448502 64.977441 2022-Dec-13 17:00 N 18 58 17.57 -21 29 54.2 232.615093 5.715628 n.a. n.a. 0.974678003906 -0.2787462 0.01058822076771 0.3227237 22.2357 /T 157.5288 140.9/ 74.3102 n.a. n.a. 1.1765353 4.7164985 64.985999 2022-Dec-13 17:10 A 18 58 17.68 -21 29 42.4 234.449948 4.266621 n.a. n.a. 0.974676886040 -0.2786888 0.01058952927184 0.3296645 22.2296 /T 157.5350 140.8/ 74.2343 n.a. n.a. 1.2094068 9.2877884 64.845111 2022-Dec-13 17:20 A 18 58 17.85 -21 29 30.3 236.254198 2.784467 n.a. n.a. 0.974675768405 -0.2786314 0.01059086457581 0.3360851 22.2237 /T 157.5408 140.7/ 74.1586 n.a. n.a. 1.2485442 13.716675 64.564256 2022-Dec-13 17:30 A 18 58 18.11 -21 29 18.1 238.029760 1.271178 n.a. n.a. 0.974674651000 -0.2785740 0.01059222456843 0.3419733 22.2182 /T 157.5464 140.5/ 74.0833 n.a. n.a. 1.2937769 17.969387 64.154084 2022-Dec-13 17:40 A 18 58 18.43 -21 29 05.8 239.778643 -0.271310 n.a. n.a. 0.974673533825 -0.2785165 0.01059360709187 0.3473181 22.2129 /T 157.5517 140.4/ 74.0083 n.a. n.a. 1.3448301 22.021363 63.625910 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-14 16:10 C 19 00 48.14 -21 22 19.8 223.291822 12.331620 n.a. n.a. 0.974524848708 -0.2706584 0.01061551699353 0.2814676 21.8525 /T 157.9152 130.3/ 66.1261 n.a. n.a. 1.1043625 339.94313 63.276389 2022-Dec-14 16:20 C 19 00 47.90 -21 22 09.3 225.301297 11.072765 n.a. n.a. 0.974523763283 -0.2705995 0.01061666467001 0.2907381 21.8450 /T 157.9228 130.2/ 66.0418 n.a. n.a. 1.1054203 344.52786 63.990769 2022-Dec-14 16:30 C 19 00 47.72 -21 21 58.5 227.272458 9.769939 n.a. n.a. 0.974522678095 -0.2705405 0.01061784863712 0.2995607 21.8378 /T 157.9300 130.0/ 65.9575 n.a. n.a. 1.1115370 349.22778 64.534491 2022-Dec-14 16:40 N 19 00 47.60 -21 21 47.5 229.206581 8.425518 n.a. n.a. 0.974521593144 -0.2704815 0.01061906706448 0.3079187 21.8308 /T 157.9371 129.9/ 65.8732 n.a. n.a. 1.1232652 353.99596 64.908462 2022-Dec-14 16:50 N 19 00 47.55 -21 21 36.2 231.105114 7.041807 n.a. n.a. 0.974520508429 -0.2704225 0.01062031805605 0.3157960 21.8241 /T 157.9438 129.8/ 65.7890 n.a. n.a. 1.1410336 358.78023 65.115657 2022-Dec-14 17:00 N 19 00 47.57 -21 21 24.7 232.969658 5.621041 n.a. n.a. 0.974519423951 -0.2703634 0.01062159965386 0.3231778 21.8176 /T 157.9503 129.7/ 65.7048 n.a. n.a. 1.1651262 3.5267965 65.161271 2022-Dec-14 17:10 A 19 00 47.66 -21 21 12.9 234.801943 4.165376 n.a. n.a. 0.974518339710 -0.2703044 0.01062290984178 0.3300500 21.8115 /T 157.9565 129.6/ 65.6208 n.a. n.a. 1.1956730 8.1841043 65.052650 2022-Dec-14 17:20 A 19 00 47.82 -21 21 01.0 236.603813 2.676896 n.a. n.a. 0.974517255706 -0.2702454 0.01062424654947 0.3363995 21.8056 /T 157.9624 129.5/ 65.5369 n.a. n.a. 1.2326534 12.706315 64.798990 2022-Dec-14 17:30 A 19 00 48.05 -21 20 48.9 238.377215 1.157606 n.a. n.a. 0.974516171938 -0.2701863 0.01062560765635 0.3422145 21.8000 /T 157.9681 129.4/ 65.4532 n.a. n.a. 1.2759106 17.055851 64.410889 2022-Dec-14 17:40 A 19 00 48.36 -21 20 36.6 240.124179 -0.390564 n.a. n.a. 0.974515088407 -0.2701272 0.01062699099574 0.3474839 21.7947 /T 157.9734 129.3/ 65.3697 n.a. n.a. 1.3251736 21.204714 63.899814 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-15 16:10 C 19 03 13.81 -21 13 57.1 223.674750 12.263075 n.a. n.a. 0.974371005065 -0.2620502 0.01064832968902 0.2820121 21.4184 /T 158.3530 118.9/ 56.8607 n.a. n.a. 1.1052009 338.76705 63.232371 2022-Dec-15 16:20 C 19 03 13.55 -21 13 46.6 225.680826 10.995592 n.a. n.a. 0.974369954169 -0.2619896 0.01064947943101 0.2912234 21.4109 /T 158.3605 118.8/ 56.7720 n.a. n.a. 1.1039211 343.35927 63.989406 2022-Dec-15 16:30 C 19 03 13.36 -21 13 35.9 227.648626 9.684509 n.a. n.a. 0.974368903516 -0.2619290 0.01065066521989 0.2999837 21.4036 /T 158.3678 118.7/ 56.6832 n.a. n.a. 1.1076966 348.08244 64.574211 2022-Dec-15 16:40 N 19 03 13.23 -21 13 25.0 229.579467 8.332198 n.a. n.a. 0.974367853106 -0.2618684 0.01065188521307 0.3082764 21.3966 /T 158.3749 118.6/ 56.5942 n.a. n.a. 1.1171156 352.88980 64.986834 2022-Dec-15 16:50 N 19 03 13.17 -21 13 13.8 231.474837 6.940961 n.a. n.a. 0.974366802940 -0.2618078 0.01065313750281 0.3160856 21.3899 /T 158.3817 118.5/ 56.5050 n.a. n.a. 1.1326433 357.72819 65.229458 2022-Dec-15 17:00 N 19 03 13.17 -21 13 02.3 233.336368 5.513027 n.a. n.a. 0.974365753016 -0.2617471 0.01065442011992 0.3233965 21.3834 /T 158.3882 118.4/ 56.4158 n.a. n.a. 1.1545980 2.5417133 65.306619 2022-Dec-15 17:10 A 19 03 13.24 -21 12 50.7 235.165824 4.050547 n.a. n.a. 0.974364703336 -0.2616865 0.01065573103758 0.3301952 21.3772 /T 158.3944 118.3/ 56.3266 n.a. n.a. 1.1831383 7.2758696 65.225187 2022-Dec-15 17:20 A 19 03 13.39 -21 12 38.9 236.965079 2.555598 n.a. n.a. 0.974363653899 -0.2616258 0.01065706817529 0.3364688 21.3713 /T 158.4004 118.2/ 56.2374 n.a. n.a. 1.2182643 11.881396 64.994099 2022-Dec-15 17:30 A 19 03 13.61 -21 12 26.9 238.736104 1.030178 n.a. n.a. 0.974362604706 -0.2615652 0.01065842940289 0.3422055 21.3656 /T 158.4061 118.1/ 56.1482 n.a. n.a. 1.2598307 16.317245 64.623908 2022-Dec-15 17:40 A 19 03 13.90 -21 12 14.7 240.480955 -0.523789 n.a. n.a. 0.974361555756 -0.2615045 0.01065981254468 0.3473944 21.3603 /T 158.4115 118.0/ 56.0591 n.a. n.a. 1.3075693 20.552272 64.126222 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-16 16:10 C 19 05 35.46 -21 05 41.5 224.069957 12.182825 n.a. n.a. 0.974222199955 -0.2532108 0.01068041350572 0.2822717 20.9695 /T 158.8057 107.4/ 47.1436 n.a. n.a. 1.1052628 337.79082 63.182955 2022-Dec-16 16:20 C 19 05 35.20 -21 05 31.2 226.072306 10.906508 n.a. n.a. 0.974221184515 -0.2531486 0.01068156416223 0.2914196 20.9620 /T 158.8133 107.3/ 47.0540 n.a. n.a. 1.1019451 342.39163 63.977153 2022-Dec-16 16:30 C 19 05 34.99 -21 05 20.5 228.036437 9.586978 n.a. n.a. 0.974220169324 -0.2530864 0.01068275060475 0.3001133 20.9547 /T 158.8206 107.2/ 46.9640 n.a. n.a. 1.1036879 347.13716 64.597533 2022-Dec-16 16:40 N 19 05 34.85 -21 05 09.6 229.963709 8.226604 n.a. n.a. 0.974219154383 -0.2530242 0.01068397097815 0.3083363 20.9477 /T 158.8277 107.0/ 46.8737 n.a. n.a. 1.1111098 351.98080 65.043383 2022-Dec-16 16:50 N 19 05 34.78 -21 04 58.5 231.855645 6.827683 n.a. n.a. 0.974218139692 -0.2529620 0.01068522336271 0.3160729 20.9409 /T 158.8345 106.9/ 46.7832 n.a. n.a. 1.1247079 356.86854 65.316182 2022-Dec-16 17:00 N 19 05 34.77 -21 04 47.2 233.713915 5.392438 n.a. n.a. 0.974217125250 -0.2528998 0.01068650577774 0.3233084 20.9344 /T 158.8410 106.8/ 46.6924 n.a. n.a. 1.1448300 1.7426259 65.419884 2022-Dec-16 17:10 A 19 05 34.83 -21 04 35.6 235.540313 3.923015 n.a. n.a. 0.974216111057 -0.2528375 0.01068781618551 0.3300290 20.9282 /T 158.8473 106.7/ 46.6014 n.a. n.a. 1.1716594 6.5458934 65.360945 2022-Dec-16 17:20 A 19 05 34.96 -21 04 23.9 237.336742 2.421481 n.a. n.a. 0.974215097115 -0.2527753 0.01068915249517 0.3362221 20.9223 /T 158.8533 106.6/ 46.5102 n.a. n.a. 1.2052134 11.225986 65.148083 2022-Dec-16 17:30 A 19 05 35.17 -21 04 12.0 239.105201 0.889829 n.a. n.a. 0.974214083422 -0.2527130 0.01069051256679 0.3418759 20.9166 /T 158.8590 106.5/ 46.4190 n.a. n.a. 1.2453557 15.738711 64.791829 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-17 16:10 C 19 07 53.46 -20 57 33.0 224.476184 12.091507 n.a. n.a. 0.974078566282 -0.2441422 0.01071155506006 0.2821719 20.5073 /T 159.2720 95.5/ 37.2680 n.a. n.a. 1.1046835 336.98438 63.119688 2022-Dec-17 16:20 C 19 07 53.18 -20 57 22.7 226.474509 10.806181 n.a. n.a. 0.974077587217 -0.2440785 0.01071270518126 0.2912523 20.4997 /T 159.2796 95.4/ 37.1813 n.a. n.a. 1.0995841 341.59530 63.946874 2022-Dec-17 16:30 C 19 07 52.97 -20 57 12.1 228.434691 9.478045 n.a. n.a. 0.974076608408 -0.2440147 0.01071389081129 0.2998753 20.4925 /T 159.2869 95.3/ 37.0941 n.a. n.a. 1.0995591 346.36302 64.598519 2022-Dec-17 16:40 N 19 07 52.82 -20 57 01.3 230.358132 8.109465 n.a. n.a. 0.974075629854 -0.2439509 0.01071511008225 0.3080245 20.4854 /T 159.2940 95.2/ 37.0065 n.a. n.a. 1.1052538 351.24104 65.073236 2022-Dec-17 16:50 N 19 07 52.73 -20 56 50.3 232.246394 6.702730 n.a. n.a. 0.974074651556 -0.2438871 0.01071636106216 0.3156843 20.4786 /T 159.3009 95.0/ 36.9184 n.a. n.a. 1.1171927 356.17454 65.371889 2022-Dec-17 17:00 N 19 07 52.71 -20 56 39.0 234.101180 5.260059 n.a. n.a. 0.974073673515 -0.2438232 0.01071764175863 0.3228401 20.4721 /T 159.3074 94.9/ 36.8299 n.a. n.a. 1.1357491 1.1040564 65.497928 2022-Dec-17 17:10 A 19 07 52.77 -20 56 27.6 235.924318 3.783588 n.a. n.a. 0.974072695729 -0.2437594 0.01071895012282 0.3294784 20.4659 /T 159.3137 94.8/ 36.7411 n.a. n.a. 1.1611268 5.9700034 65.457457 2022-Dec-17 17:20 A 19 07 52.89 -20 56 16.0 237.717738 2.275378 n.a. n.a. 0.974071718200 -0.2436956 0.01072028405338 0.3355865 20.4599 /T 159.3197 94.7/ 36.6520 n.a. n.a. 1.1933572 10.717205 65.259030 2022-Dec-17 17:30 A 19 07 53.09 -20 56 04.2 239.483467 0.737413 n.a. n.a. 0.974070740926 -0.2436317 0.01072164140049 0.3411530 20.4543 /T 159.3254 94.6/ 36.5625 n.a. n.a. 1.2323103 15.298619 64.913192 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-18 16:10 C 19 10 08.08 -20 49 31.2 224.892413 11.989668 n.a. n.a. 0.973940236011 -0.2348457 0.01074150158477 0.2816395 20.0327 /T 159.7508 83.2/ 27.5970 n.a. n.a. 1.1037006 336.31119 63.032023 2022-Dec-18 16:20 C 19 10 07.79 -20 49 20.9 226.886442 10.695186 n.a. n.a. 0.973939294235 -0.2347804 0.01074264942789 0.2906487 20.0252 /T 159.7584 83.1/ 27.5174 n.a. n.a. 1.0970205 340.93343 63.889597 2022-Dec-18 16:30 C 19 10 07.57 -20 49 10.4 228.842422 9.358311 n.a. n.a. 0.973938352721 -0.2347150 0.01074383248727 0.2991971 20.0179 /T 159.7658 83.0/ 27.4371 n.a. n.a. 1.0954362 345.72323 64.569686 2022-Dec-18 16:40 N 19 10 07.41 -20 48 59.7 230.761797 7.981404 n.a. n.a. 0.973937411469 -0.2346496 0.01074504888200 0.3072685 20.0108 /T 159.7729 82.9/ 27.3563 n.a. n.a. 1.0996166 350.63413 65.070305 2022-Dec-18 16:50 N 19 10 07.32 -20 48 48.7 232.646168 6.566750 n.a. n.a. 0.973936470480 -0.2345842 0.01074629666760 0.3148474 20.0040 /T 159.7797 82.7/ 27.2750 n.a. n.a. 1.1101101 355.61056 65.391770 2022-Dec-18 17:00 N 19 10 07.30 -20 48 37.6 234.497274 5.116556 n.a. n.a. 0.973935529753 -0.2345188 0.01074757383984 0.3219196 19.9975 /T 159.7863 82.6/ 27.1932 n.a. n.a. 1.1273121 0.5914319 65.537092 2022-Dec-18 17:10 N 19 10 07.34 -20 48 26.2 236.316972 3.632954 n.a. n.a. 0.973934589288 -0.2344534 0.01074887833860 0.3284715 19.9913 /T 159.7926 82.5/ 27.1109 n.a. n.a. 1.1514437 5.5149151 65.512089 2022-Dec-18 17:20 A 19 10 07.46 -20 48 14.7 238.107224 2.117995 n.a. n.a. 0.973933649086 -0.2343880 0.01075020805189 0.3344906 19.9853 /T 159.7986 82.4/ 27.0282 n.a. n.a. 1.1825474 10.323224 65.325199 2022-Dec-18 17:30 A 19 10 07.65 -20 48 02.9 239.870081 0.573653 n.a. n.a. 0.973932709146 -0.2343226 0.01075156081989 0.3399657 19.9797 /T 159.8043 82.3/ 26.9450 n.a. n.a. 1.2204974 14.966704 64.987021 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-19 16:10 C 19 12 19.53 -20 41 35.6 225.317920 11.877715 n.a. n.a. 0.973807340645 -0.2253216 0.01076996325423 0.2806114 19.5466 /T 160.2414 70.5/ 18.5816 n.a. n.a. 1.1026494 335.72577 62.907931 2022-Dec-19 16:20 C 19 12 19.24 -20 41 25.5 227.307403 10.573948 n.a. n.a. 0.973806437071 -0.2252547 0.01077110682376 0.2895457 19.5391 /T 160.2490 70.3/ 18.5132 n.a. n.a. 1.0945195 340.35948 63.795174 2022-Dec-19 16:30 C 19 12 19.01 -20 41 15.0 229.258950 9.228220 n.a. n.a. 0.973805533766 -0.2251877 0.01077228530258 0.2980159 19.5318 /T 160.2563 70.2/ 18.4442 n.a. n.a. 1.0915109 345.17066 64.502732 2022-Dec-19 16:40 N 19 12 18.85 -20 41 04.3 231.174046 7.842884 n.a. n.a. 0.973804630729 -0.2251207 0.01077349679651 0.3060059 19.5247 /T 160.2634 70.1/ 18.3746 n.a. n.a. 1.0943142 350.11290 65.028061 2022-Dec-19 16:50 N 19 12 18.75 -20 40 53.4 233.054331 6.420219 n.a. n.a. 0.973803727960 -0.2250538 0.01077473934845 0.3135003 19.5180 /T 160.2703 70.0/ 18.3044 n.a. n.a. 1.1034996 355.12987 65.370977 2022-Dec-19 17:00 N 19 12 18.72 -20 40 42.4 234.901580 4.962424 n.a. n.a. 0.973802825461 -0.2249868 0.01077601094212 0.3204850 19.5114 /T 160.2768 69.9/ 18.2338 n.a. n.a. 1.1194821 0.1589841 65.534098 2022-Dec-19 17:10 N 19 12 18.76 -20 40 31.1 236.717680 3.471621 n.a. n.a. 0.973801923230 -0.2249198 0.01077730950599 0.3269467 19.5052 /T 160.2831 69.8/ 18.1626 n.a. n.a. 1.1424986 5.1362646 65.522994 2022-Dec-19 17:20 A 19 12 18.87 -20 40 19.6 238.504623 1.949853 n.a. n.a. 0.973801021267 -0.2248528 0.01077863291734 0.3328731 19.4992 /T 160.2891 69.7/ 18.0909 n.a. n.a. 1.1726009 10.001462 65.346025 2022-Dec-19 17:30 A 19 12 19.05 -20 40 08.0 240.264487 0.399084 n.a. n.a. 0.973800119574 -0.2247858 0.01077997900631 0.3382530 19.4936 /T 160.2948 69.6/ 18.0187 n.a. n.a. 1.2096659 14.702455 65.013878 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-20 16:10 C 19 14 27.92 -20 33 46.0 225.752335 11.755843 n.a. n.a. 0.973680011745 -0.2155694 0.01079662202966 0.2790490 19.0494 /T 160.7432 57.2/ 10.7616 n.a. n.a. 1.1019462 335.17260 62.735250 2022-Dec-20 16:20 C 19 14 27.62 -20 33 35.8 227.737036 10.442674 n.a. n.a. 0.973679147288 -0.2155009 0.01079775917614 0.2879052 19.0419 /T 160.7508 57.1/ 10.7083 n.a. n.a. 1.0924101 339.81625 63.653622 2022-Dec-20 16:30 C 19 14 27.39 -20 33 25.4 229.683933 9.087988 n.a. n.a. 0.973678283105 -0.2154323 0.01079893091166 0.2962938 19.0346 /T 160.7582 57.0/ 10.6545 n.a. n.a. 1.0880201 344.64697 64.389862 2022-Dec-20 16:40 N 19 14 27.22 -20 33 14.8 231.594553 7.694131 n.a. n.a. 0.973677419198 -0.2153638 0.01080013532862 0.3041990 19.0276 /T 160.7653 56.9/ 10.6001 n.a. n.a. 1.0894875 349.61851 64.940874 2022-Dec-20 16:50 N 19 14 27.11 -20 33 04.0 233.470573 6.263373 n.a. n.a. 0.973676555566 -0.2152952 0.01080137045709 0.3116055 19.0208 /T 160.7721 56.8/ 10.5453 n.a. n.a. 1.0974041 354.67390 65.305980 2022-Dec-20 17:00 N 19 14 27.08 -20 32 53.0 235.313803 4.797905 n.a. n.a. 0.973675692208 -0.2152267 0.01080263426861 0.3184993 19.0143 /T 160.7786 56.7/ 10.4900 n.a. n.a. 1.1122043 359.74911 65.487406 2022-Dec-20 17:10 N 19 14 27.11 -20 32 41.8 237.126163 3.299839 n.a. n.a. 0.973674829126 -0.2151581 0.01080392468013 0.3248673 19.0080 /T 160.7849 56.6/ 10.4343 n.a. n.a. 1.1341403 4.7781146 65.490483 2022-Dec-20 17:20 A 19 14 27.21 -20 32 30.4 238.909673 1.771208 n.a. n.a. 0.973673966319 -0.2150895 0.01080523955810 0.3306974 19.0021 /T 160.7909 56.5/ 10.3781 n.a. n.a. 1.1632734 9.6982355 65.323503 2022-Dec-20 17:30 A 19 14 27.39 -20 32 18.8 240.666435 0.213968 n.a. n.a. 0.973673103786 -0.2150209 0.01080657672252 0.3359786 18.9964 /T 160.7966 56.4/ 10.3215 n.a. n.a. 1.1994833 14.454901 64.997256 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2022-Dec-21 16:10 C 19 16 33.22 -20 26 01.8 226.195681 11.623957 n.a. n.a. 0.973558381274 -0.2055883 0.01082115035805 0.2769579 18.5411 /T 161.2564 43.6/ 4.7341 n.a. n.a. 1.1020509 334.58818 62.503946 2022-Dec-21 16:20 C 19 16 32.92 -20 25 51.7 228.175375 10.301272 n.a. n.a. 0.973557556851 -0.2055182 0.01082227895517 0.2857330 18.5336 /T 161.2640 43.5/ 4.6988 n.a. n.a. 1.0910510 339.23800 63.457238 2022-Dec-21 16:30 C 19 16 32.67 -20 25 41.4 230.117414 8.937525 n.a. n.a. 0.973556732710 -0.2054481 0.01082344180918 0.2940372 18.5263 /T 161.2713 43.4/ 4.6632 n.a. n.a. 1.0852147 344.08488 64.225776 2022-Dec-21 16:40 N 19 16 32.50 -20 25 30.8 232.023368 7.535055 n.a. n.a. 0.973555908850 -0.2053780 0.01082463699885 0.3018545 18.5193 /T 161.2784 43.3/ 4.6272 n.a. n.a. 1.0852753 349.08293 64.805872 2022-Dec-21 16:50 N 19 16 32.38 -20 25 20.1 233.894953 6.096124 n.a. n.a. 0.973555085271 -0.2053078 0.01082586254123 0.3091700 18.5125 /T 161.2852 43.2/ 4.5910 n.a. n.a. 1.0918471 354.17474 65.196304 2022-Dec-21 17:00 N 19 16 32.34 -20 25 09.1 235.734012 4.622913 n.a. n.a. 0.973554261974 -0.2052376 0.01082711639558 0.3159698 18.5060 /T 161.2918 43.1/ 4.5544 n.a. n.a. 1.1053864 359.29498 65.398860 2022-Dec-21 17:10 N 19 16 32.37 -20 24 58.0 237.542498 3.117523 n.a. n.a. 0.973553438958 -0.2051675 0.01082839646719 0.3222410 18.4998 /T 161.2981 43.0/ 4.5175 n.a. n.a. 1.1261628 4.3755917 65.418586 2022-Dec-21 17:20 A 19 16 32.47 -20 24 46.6 239.322458 1.581978 n.a. n.a. 0.973552616224 -0.2050973 0.01082970061159 0.3279717 18.4938 /T 161.3041 42.9/ 4.4803 n.a. n.a. 1.1542493 9.3513999 65.263672 2022-Dec-21 17:30 A 19 16 32.64 -20 24 35.2 241.076021 0.018223 n.a. n.a. 0.973551793771 -0.2050271 0.01083102663859 0.3331509 18.4881 /T 161.3098 42.8/ 4.4428 n.a. n.a. 1.1895302 14.165239 64.944995 >..... Elevation Cut-off Requested .....< $$EOE *************************************************************************************************************************************************************************************************************************************************** Column meaning: TIME Times PRIOR to 1962 are UT1, a mean-solar time closely related to the prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1 using integer leap-seconds for 1972 and later years. Conversion from the internal Barycentric Dynamical Time (TDB) of solar system dynamics to the non-uniform civil UT time-scale requested for output has not been determined for UTC times after the next July or January 1st. Therefore, the last known leap-second is used as a constant over future intervals. Time tags refer to the UT time-scale conversion from TDB on Earth regardless of observer location within the solar system, although clock rates may differ due to the local gravity field and no analog to "UT" may be defined for that location. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. Calendar dates prior to 1582-Oct-15 are in the Julian calendar system. Later calendar dates are in the Gregorian system. NOTE: "n.a." in output means quantity "not available" at the print-time. SOLAR PRESENCE (OBSERVING SITE) Time tag is followed by a blank, then a solar-presence condition code: '*' Daylight (refracted solar upper-limb on or above apparent horizon) 'C' Civil twilight/dawn 'N' Nautical twilight/dawn 'A' Astronomical twilight/dawn ' ' Night OR geocentric ephemeris LUNAR PRESENCE WITH TARGET RISE/TRANSIT/SET EVENT MARKER (OBSERVING SITE) The solar-presence code column is immediately followed by another marker: 'm' Refracted upper-limb of Moon on or above apparent horizon ' ' Refracted upper-limb of Moon below apparent horizon OR geocentric The lunar presence marker (an ongoing state) can be over-ridden by a target event marker if an event has occurred since the last output step: 'r' Rise (target body on or went above cut-off RTS elevation) 'e' Elevation max (target body maximum elevation angle has occurred) 't' Transit (target body at or passed through observer meridian) 's' Set (target body on or went below cut-off RTS elevation) RTS MARKERS (TVH) Rise and set are with respect to the reference ellipsoid true visual horizon defined by the elevation cut-off angle. Horizon dip and yellow-light refraction (Earth only) are considered. Accuracy is < or = to twice the requested search step-size. 'R.A._____(ICRF)_____DEC' = Astrometric right ascension and declination of the target center with respect to the observing site (coordinate origin) in the reference frame of the planetary ephemeris (ICRF). Compensated for down-leg light-time delay aberration. Units: RA in hours-minutes-seconds of time, HH MM SS.ff{ffff} DEC in degrees-minutes-seconds of arc, sDD MN SC.f{ffff} 'Azi____(a-app)___Elev' = Airless apparent azimuth and elevation of target center. Compensated for light-time, the gravitational deflection of light, stellar aberration, precession and nutation. Azimuth is measured clockwise from north: North(0) -> East(90) -> South(180) -> West(270) -> North (360) Elevation angle is with respect to a plane perpendicular to the reference surface local zenith direction. TOPOCENTRIC ONLY. Units: DEGREES 'APmag S-brt' = The targets' approximate apparent visual magnitude and surface brightness. For planets and natural satellites, output is restricted to solar phase angles covered by observational data. Outside the observed phase angle range, "n.a." may be output to avoid extrapolation beyond the limit of model validity. For Earth-based observers, the estimated dimming due to atmospheric absorption (extinction) is available as a separate, requestable quantity. Surface brightness is the average airless visual magnitude of a square-arcsecond of the illuminated portion of the apparent disk. It is computed only if the target radius is known. Units: MAGNITUDES & MAGNITUDES PER SQUARE ARCSECOND 'r rdot' = The Sun's apparent range ("r", light-time aberrated) and range-rate ("rdot") relative to the target center, as seen by the observer. A positive "rdot" means the target center was moving away from the Sun, negative means moving toward the Sun. Units: AU and KM/S 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. Units: AU and KM/S 'S-O-T /r' = Sun-Observer-Target apparent SOLAR ELONGATION ANGLE seen from the observers' location at print-time. The '/r' column provides a code indicating the targets' apparent position relative to the Sun in the observers' sky, as described below: Case A: For an observing location on the surface of a rotating body, that body rotational sense is considered: /T indicates target TRAILS Sun (evening sky: rises and sets AFTER Sun) /L indicates target LEADS Sun (morning sky: rises and sets BEFORE Sun) Case B: For an observing point that does not have a rotational model (such as a spacecraft), the "leading" and "trailing" condition is defined by the observers' heliocentric ORBITAL motion: * If continuing in the observers' current direction of heliocentric motion would encounter the targets' apparent longitude first, followed by the Sun's, the target LEADS the Sun as seen by the observer. * If the Sun's apparent longitude would be encountered first, followed by the targets', the target TRAILS the Sun. Two other codes can be output: /* indicates observer is Sun-centered (undefined) /? Target is aligned with Sun center (no lead or trail) The S-O-T solar elongation angle is numerically the minimum separation angle of the Sun and target in the sky in any direction. It does NOT indicate the amount of separation in the leading or trailing directions, which would be defined along the equator of a spherical coordinate system. Units: DEGREES 'S-T-O' = The Sun-Target-Observer angle; the interior vertex angle at target center formed by a vector from the target to the apparent center of the Sun (at reflection time on the target) and the apparent vector from target to the observer at print-time. Slightly different from true PHASE ANGLE (requestable separately) at the few arcsecond level in that it includes stellar aberration on the down-leg from target to observer. Units: DEGREES 'T-O-M/MN_Illu%' = Target-Observer-Moon LUNAR ELONGATION angle and illuminated percentage. The apparent lunar elongation angle between target body center and Moon center, seen from the observing site, along with fraction of the lunar disk illuminated by the Sun. A negative lunar elongation angle indicates the target center is behind the Moon. Units: DEGREES & PERCENT 'RA_3sigma DEC_3sigma' = Uncertainty in Right-Ascension and Declination. Output values are the formal +/- 3 standard-deviations (sigmas) around nominal position. Units: ARCSECONDS 'Sky_motion Sky_mot_PA RelVel-ANG' = Total apparent angular rate of the target in the plane-of-sky. "Sky_mot_PA" is the position angle of the target's direction of motion in the plane-of-sky, measured counter-clockwise from the apparent of-date north pole direction. "RelVel-ANG" is the flight path angle of the target's relative motion with respect to the observer's line-of-sight, in the range [-90,+90], where positive values indicate motion away from the observer, negative values are toward the observer: -90 = target is moving directly toward the observer 0 = target is moving at right angles to the observer's line-of-sight +90 = target is moving directly away from the observer UNITS: ARCSECONDS/MINUTE, DEGREES, DEGREES Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA General site: https://ssd.jpl.nasa.gov/ Mailing list: https://ssd.jpl.nasa.gov/email_list.html System news : https://ssd.jpl.nasa.gov/horizons/news.html User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x API https://ssd-api.jpl.nasa.gov/doc/horizons.html command-line telnet ssd.jpl.nasa.gov 6775 e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ***************************************************************************************************************************************************************************************************************************************************