API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Dec 06, 2024 Spektr-R Telescope (Spacecraft) -557 (Earth orbiting) http://www.spaceflightnow.com/news/n1107/18spektr/ BACKGROUND: Russian Earth-orbiting radio telescope funded by Russian Astro Space Center. It was launched from the Baikonur Cosmodrome on July 18, 2011 at 02:31 UTC by a Zenit-3M launcher with Fregat-SB upper stage. MISSION OBJECTIVES: The primary scientific goal of Spektr-R over the planned 5-year mission is the study of astronomical objects at an angular resolution of a few millionths of an arcsecond. This is accomplished by using the satellite interferometrically in conjunction with ground-based observatories, including Arecibo and Greenbank. The primary targets are extragalactic. Characteristics of near-Earth and interplanetary plasma will also be studied. Wavelengths used are 1.35-6.0, 18.0 and 92.0 cm. PHYSICAL DATA: Mass : 3295 kg Diameter: 10 m SPACECRAFT TRAJECTORY: Perigee: ~ 10,000 km Apogee : ~390,000 km TRAJECTORY: The IKI (Russian Space Research Institute) provided an official trajectory for Nov 1-16 (2011). TLEs are used for other times, and are low-precision, especially during the following intervals which are extrapolations over data gaps: 2011: 2012: 2013: Jul 22 - Aug 04 Feb 26 - Apr 24 Jan 16 - Jun 02 Aug 12 - Oct 04 May 11 - May 29 Jul 04 - Jul 14 Dec 09 - Feb 17 (2012) Jun 12 - Aug 30 Oct 16 - Nov 02 Sep 08 - Jan 08 (2013) Dec 24 - Jan 10 Jan 19 - Feb 22 May 09 - May 27 Trajectory name Start Stop ------------------------------ ----------------- ----------------- TLEs 2011-Jun-18 06:09 2011-Nov-01 11:01 spectr_111101_111116_111102 2011-Nov-01 11:01 2011-Nov-16 01:07 TLEs 2011-Nov-16 01:07 Current ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Thu Dec 12 03:41:19 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Spektr-R Observatory (spacecraft) (-557) {source: spektr-r_MERGED} Center body name: Earth (399) {source: DE441} Center-site name: iTelescope Obs.,Beryl Junc. (Sato) ******************************************************************************* Start time : A.D. 2024-Nov-30 00:00:00.0000 UT Stop time : A.D. 2024-Dec-01 00:00:00.0000 UT Step-size : 10 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 246.3025, 37.7377919, 1.56349 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 246.3025,5051.53114,3883.42609 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : ITRF93 {East-longitude positive} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Target primary : Earth 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 Calendar mode : Mixed Julian/Gregorian RTS-only print : NO EOP file : eop.241211.p250309 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-DEC-11. PREDICTS-> 2025-MAR-08 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 .....< 2024-Nov-30 02:10 09 03 45.66 +47 10 52.3 21.081410 -0.520333 n.a. n.a. 0.987382279794 -0.2942353 0.00225496869783 0.1712330 119.3205 /L 60.5655 109.8/ 1.6073 n.a. n.a. 21.483603 110.95516 16.302440 2024-Nov-30 02:20 09 04 05.19 +47 09 37.7 22.580577 0.174234 n.a. n.a. 0.987381104140 -0.2950956 0.00225564791020 0.1605783 119.2707 /L 60.6152 109.8/ 1.5881 n.a. n.a. 21.041972 110.41349 15.639189 2024-Nov-30 02:30 09 04 24.37 +47 08 26.5 24.058632 0.916403 n.a. n.a. 0.987379925029 -0.2959547 0.00225628482897 0.1501596 119.2218 /L 60.6640 109.8/ 1.5687 n.a. n.a. 20.587821 109.89356 14.974929 2024-Nov-30 02:40 09 04 43.18 +47 07 18.5 25.514602 1.705046 n.a. n.a. 0.987378742468 -0.2968124 0.00225688043349 0.1399932 119.1740 /L 60.7117 109.8/ 1.5493 n.a. n.a. 20.121530 109.39678 14.310098 2024-Nov-30 02:50 09 05 01.60 +47 06 13.7 26.947625 2.538998 n.a. n.a. 0.987377556462 -0.2976690 0.00225743576805 0.1300951 119.1273 /L 60.7584 109.9/ 1.5298 n.a. n.a. 19.643507 108.92475 13.645174 2024-Nov-30 03:00 09 05 19.62 +47 05 12.0 28.356941 3.417066 n.a. n.a. 0.987376367017 -0.2985242 0.00225795194025 0.1204809 119.0817 /L 60.8039 109.9/ 1.5102 n.a. n.a. 19.154194 108.47932 12.980677 2024-Nov-30 03:10 09 05 37.21 +47 04 13.1 29.741887 4.338033 n.a. n.a. 0.987375174136 -0.2993782 0.00225843011913 0.1111658 119.0373 /L 60.8482 109.9/ 1.4905 n.a. n.a. 18.654063 108.06260 12.317178 2024-Nov-30 03:20 09 05 54.37 +47 03 17.1 31.101896 5.300667 n.a. n.a. 0.987373977827 -0.3002310 0.00225887153345 0.1021643 118.9941 /L 60.8913 110.0/ 1.4707 n.a. n.a. 18.143621 107.67702 11.655310 2024-Nov-30 03:30 09 06 11.08 +47 02 23.7 32.436486 6.303725 n.a. n.a. 0.987372778093 -0.3010825 0.00225927746956 0.0934906 118.9522 /L 60.9332 110.0/ 1.4509 n.a. n.a. 17.623412 107.32540 10.995776 2024-Nov-30 03:40 09 06 27.32 +47 01 32.9 33.745254 7.345958 n.a. n.a. 0.987371574940 -0.3019328 0.00225964926938 0.0851582 118.9116 /L 60.9737 110.0/ 1.4311 n.a. n.a. 17.094016 107.01094 10.339365 2024-Nov-30 03:50 09 06 43.08 +47 00 44.5 35.027873 8.426120 n.a. n.a. 0.987370368374 -0.3027819 0.00225998832813 0.0771802 118.8724 /L 61.0128 110.1/ 1.4112 n.a. n.a. 16.556057 106.73738 9.6869683 2024-Nov-30 04:00 09 06 58.35 +46 59 58.3 36.284076 9.542965 n.a. n.a. 0.987369158398 -0.3036298 0.00226029609208 0.0695689 118.8345 /L 61.0506 110.1/ 1.3913 n.a. n.a. 16.010201 106.50904 9.0395980 2024-Nov-30 04:10 09 07 13.12 +46 59 14.2 37.513657 10.695259 n.a. n.a. 0.987367945019 -0.3044765 0.00226057405606 0.0623362 118.7981 /L 61.0870 110.2/ 1.3714 n.a. n.a. 15.457165 106.33092 8.3984143 2024-Nov-30 04:20 09 07 27.37 +46 58 32.0 38.716456 11.881777 n.a. n.a. 0.987366728241 -0.3053220 0.00226082376093 0.0554933 118.7632 /L 61.1219 110.2/ 1.3516 n.a. n.a. 14.897718 106.20885 7.7647561 2024-Nov-30 04:30 09 07 41.10 +46 57 51.6 39.892352 13.101310 n.a. n.a. 0.987365508070 -0.3061663 0.00226104679109 0.0490506 118.7297 /L 61.1553 110.3/ 1.3317 n.a. n.a. 14.332694 106.14964 7.1401802 2024-Nov-30 04:40 09 07 54.29 +46 57 12.9 41.041254 14.352663 n.a. n.a. 0.987364284509 -0.3070095 0.00226124477157 0.0430179 118.6978 /L 61.1872 110.3/ 1.3119 n.a. n.a. 13.762994 106.16127 6.5265113 2024-Nov-30 04:50 09 08 06.94 +46 56 35.6 42.163095 15.634665 n.a. n.a. 0.987363057565 -0.3078515 0.00226141936538 0.0374044 118.6674 /L 61.2175 110.4/ 1.2922 n.a. n.a. 13.189602 106.25310 5.9259042 2024-Nov-30 05:00 09 08 19.05 +46 55 59.6 43.257820 16.946160 n.a. n.a. 0.987361827241 -0.3086923 0.00226157227056 0.0322184 118.6386 /L 61.2463 110.4/ 1.2725 n.a. n.a. 12.613597 106.43619 5.3409238 2024-Nov-30 05:10 09 08 30.59 +46 55 24.7 44.325375 18.286017 n.a. n.a. 0.987360593544 -0.3095320 0.00226170521718 0.0274675 118.6113 /L 61.2735 110.5/ 1.2528 n.a. n.a. 12.036169 106.72364 4.7746467 2024-Nov-30 05:20 09 08 41.57 +46 54 50.8 45.365702 19.653127 n.a. n.a. 0.987359356476 -0.3103706 0.00226181996432 0.0231586 118.5857 /L 61.2991 110.6/ 1.2333 n.a. n.a. 11.458648 107.13099 4.2307919 2024-Nov-30 05:30 09 08 51.99 +46 54 17.6 46.378727 21.046404 n.a. n.a. 0.987358116044 -0.3112080 0.00226191829699 0.0192977 118.5617 /L 61.3231 110.6/ 1.2139 n.a. n.a. 10.882527 107.67676 3.7138879 2024-Nov-30 05:40 09 09 01.83 +46 53 45.1 47.364349 22.464783 n.a. n.a. 0.987356872252 -0.3120444 0.00226200202282 0.0158901 118.5393 /L 61.3455 110.7/ 1.1946 n.a. n.a. 10.309506 108.38309 3.2294872 2024-Nov-30 05:50 09 09 11.10 +46 53 13.0 48.322430 23.907227 n.a. n.a. 0.987355625105 -0.3128796 0.00226207296893 0.0129402 118.5185 /L 61.3662 110.8/ 1.1754 n.a. n.a. 9.7415354 109.27646 2.7844395 2024-Nov-30 06:00 09 09 19.79 +46 52 41.1 49.252785 25.372717 n.a. n.a. 0.987354374607 -0.3137137 0.00226213297852 0.0104517 118.4994 /L 61.3853 110.8/ 1.1563 n.a. n.a. 9.1808866 110.38856 2.3872350 2024-Nov-30 06:10 09 09 27.90 +46 52 09.3 50.155166 26.860257 n.a. n.a. 0.987353120764 -0.3145467 0.00226218390755 0.0084272 118.4819 /L 61.4028 110.9/ 1.1374 n.a. n.a. 8.6302289 111.75724 2.0484272 2024-Nov-30 06:20 09 09 35.44 +46 51 37.4 51.029253 28.368873 n.a. n.a. 0.987351863578 -0.3153787 0.00226222762129 0.0068687 118.4660 /L 61.4186 111.0/ 1.1186 n.a. n.a. 8.0927351 113.42744 1.7811299 2024-Nov-30 06:30 09 09 42.40 +46 51 05.2 51.874636 29.897611 n.a. n.a. 0.987350603056 -0.3162096 0.00226226599090 0.0057772 118.4518 /L 61.4328 111.0/ 1.1000 n.a. n.a. 7.5722102 115.45189 1.6015542 2024-Nov-30 06:40 09 09 48.79 +46 50 32.5 52.690797 31.445532 n.a. n.a. 0.987349339202 -0.3170394 0.00226230088994 0.0051528 118.4392 /L 61.4454 111.1/ 1.0816 n.a. n.a. 7.0732452 117.89125 1.5294872 2024-Nov-30 06:50 09 09 54.61 +46 49 59.2 53.477095 33.011717 n.a. n.a. 0.987348072020 -0.3178681 0.00226233419083 0.0049949 118.4282 /L 61.4564 111.2/ 1.0634 n.a. n.a. 6.6013873 120.81277 1.5884878 2024-Nov-30 07:00 09 09 59.87 +46 49 25.1 54.232739 34.595259 n.a. n.a. 0.987346801514 -0.3186958 0.00226236776126 0.0053018 118.4188 /L 61.4657 111.3/ 1.0454 n.a. n.a. 6.1633030 124.28650 1.8053738 2024-Nov-30 07:10 09 10 04.56 +46 48 49.9 54.956768 36.195263 n.a. n.a. 0.987345527690 -0.3195225 0.00226240346076 0.0060710 118.4110 /L 61.4735 111.4/ 1.0276 n.a. n.a. 5.7668778 128.37715 2.2082886 2024-Nov-30 07:20 09 10 08.70 +46 48 13.6 55.648013 37.810841 n.a. n.a. 0.987344250551 -0.3203481 0.00226244313703 0.0072991 118.4048 /L 61.4798 111.5/ 1.0100 n.a. n.a. 5.4211529 133.12985 2.8224322 2024-Nov-30 07:30 09 10 12.29 +46 47 35.9 56.305068 39.441112 n.a. n.a. 0.987342970102 -0.3211727 0.00226248862240 0.0089819 118.4001 /L 61.4844 111.5/ 0.9926 n.a. n.a. 5.1359530 138.54923 3.6628065 2024-Nov-30 07:40 09 10 15.34 +46 46 56.6 56.926242 41.085196 n.a. n.a. 0.987341686347 -0.3219962 0.00226254173031 0.0111142 118.3969 /L 61.4876 111.6/ 0.9755 n.a. n.a. 4.9210496 144.57504 4.7247682 2024-Nov-30 07:50 09 10 17.87 +46 46 15.7 57.509510 42.742207 n.a. n.a. 0.987340399290 -0.3228188 0.00226260425171 0.0136900 118.3952 /L 61.4893 111.7/ 0.9586 n.a. n.a. 4.7848179 151.06383 5.9760421 2024-Nov-30 08:00 09 10 19.87 +46 45 32.9 58.052446 44.411252 n.a. n.a. 0.987339108937 -0.3236403 0.00226267795159 0.0167023 118.3950 /L 61.4896 111.8/ 0.9420 n.a. n.a. 4.7326253 157.79122 7.3563178 2024-Nov-30 08:10 09 10 21.38 +46 44 48.0 58.552148 46.091419 n.a. n.a. 0.987337815290 -0.3244609 0.00226276456543 0.0201434 118.3961 /L 61.4884 111.9/ 0.9256 n.a. n.a. 4.7655147 164.48405 8.7885790 2024-Nov-30 08:20 09 10 22.38 +46 44 01.0 59.005135 47.781774 n.a. n.a. 0.987336518354 -0.3252805 0.00226286579580 0.0240046 118.3987 /L 61.4858 112.0/ 0.9095 n.a. n.a. 4.8798101 170.87437 10.198553 2024-Nov-30 08:30 09 10 22.91 +46 43 11.6 59.407234 49.481345 n.a. n.a. 0.987335218134 -0.3260991 0.00226298330896 0.0282764 118.4026 /L 61.4819 112.1/ 0.8936 n.a. n.a. 5.0678720 176.75095 11.531839 2024-Nov-30 08:40 09 10 22.97 +46 42 19.7 59.753416 51.189113 n.a. n.a. 0.987333914634 -0.3269167 0.00226311873136 0.0329486 118.4078 /L 61.4767 112.2/ 0.8781 n.a. n.a. 5.3196245 181.98606 12.760437 2024-Nov-30 08:50 09 10 22.58 +46 41 25.1 60.037611 52.903995 n.a. n.a. 0.987332607857 -0.3277334 0.00226327364656 0.0380099 118.4143 /L 61.4702 112.3/ 0.8628 n.a. n.a. 5.6241882 186.53290 13.878874 2024-Nov-30 09:00 09 10 21.76 +46 40 27.8 60.252447 54.624824 n.a. n.a. 0.987331297808 -0.3285491 0.00226344959184 0.0434486 118.4220 /L 61.4625 112.4/ 0.8477 n.a. n.a. 5.9711199 190.40526 14.895716 2024-Nov-30 09:10 09 10 20.52 +46 39 27.5 60.388935 56.350318 n.a. n.a. 0.987329984490 -0.3293638 0.00226364805507 0.0492517 118.4308 /L 61.4537 112.5/ 0.8330 n.a. n.a. 6.3511102 193.65323 15.825690 2024-Nov-30 09:20 09 10 18.88 +46 38 24.2 60.436037 58.079053 n.a. n.a. 0.987328667909 -0.3301776 0.00226387047171 0.0554060 118.4408 /L 61.4437 112.6/ 0.8186 n.a. n.a. 6.7562354 196.34338 16.684514 2024-Nov-30 09:30 09 10 16.87 +46 37 17.6 60.380103 59.809406 n.a. n.a. 0.987327348067 -0.3309905 0.00226411822175 0.0618972 118.4518 /L 61.4327 112.7/ 0.8045 n.a. n.a. 7.1799355 198.54577 17.486306 2024-Nov-30 09:40 09 10 14.49 +46 36 07.8 60.204125 61.539502 n.a. n.a. 0.987326024969 -0.3318025 0.00226439262688 0.0687105 118.4638 /L 61.4207 112.8/ 0.7906 n.a. n.a. 7.6168599 200.32673 18.242679 2024-Nov-30 09:50 09 10 11.77 +46 34 54.6 59.886712 63.267119 n.a. n.a. 0.987324698619 -0.3326135 0.00226469494768 0.0758302 118.4767 /L 61.4078 112.9/ 0.7771 n.a. n.a. 8.0626740 201.74558 18.962708 2024-Nov-30 10:00 09 10 08.74 +46 33 37.8 59.400710 64.989574 n.a. n.a. 0.987323369020 -0.3334236 0.00226502638097 0.0832401 118.4905 /L 61.3940 113.0/ 0.7639 n.a. n.a. 8.5138710 202.85372 19.653264 2024-Nov-30 10:10 09 10 05.40 +46 32 17.4 58.711281 66.703549 n.a. n.a. 0.987322036177 -0.3342328 0.00226538805730 0.0909234 118.5051 /L 61.3793 113.1/ 0.7510 n.a. n.a. 8.9676088 203.69484 20.319438 2024-Nov-30 10:20 09 10 01.80 +46 30 53.3 57.773241 68.404850 n.a. n.a. 0.987320700093 -0.3350412 0.00226578103849 0.0988627 118.5205 /L 61.3640 113.2/ 0.7383 n.a. n.a. 9.4215763 204.30573 20.964935 2024-Nov-30 10:30 09 09 57.94 +46 29 25.4 56.527336 70.088044 n.a. n.a. 0.987319360773 -0.3358486 0.00226620631535 0.1070400 118.5366 /L 61.3479 113.3/ 0.7260 n.a. n.a. 9.8738867 204.71720 21.592412 2024-Nov-30 10:40 09 09 53.85 +46 27 53.6 54.895042 71.745933 n.a. n.a. 0.987318018219 -0.3366551 0.00226666480556 0.1154368 118.5533 /L 61.3312 113.4/ 0.7140 n.a. n.a. 10.322995 204.95503 22.203733 2024-Nov-30 10:50 09 09 49.56 +46 26 17.9 52.771405 73.368749 n.a. n.a. 0.987316672436 -0.3374608 0.00226715735166 0.1240342 118.5705 /L 61.3139 113.5/ 0.7023 n.a. n.a. 10.767631 205.04083 22.800169 2024-Nov-30 11:00 09 09 45.08 +46 24 38.1 50.015584 74.942949 n.a. n.a. 0.987315323428 -0.3382656 0.00226768471922 0.1328126 118.5883 /L 61.2962 113.6/ 0.6910 n.a. n.a. 11.206752 204.99273 23.382549 2024-Nov-30 11:10 09 09 40.45 +46 22 54.4 46.439637 76.449378 n.a. n.a. 0.987313971197 -0.3390696 0.00226824759508 0.1417524 118.6064 /L 61.2780 113.7/ 0.6799 n.a. n.a. 11.639504 204.82600 23.951370 2024-Nov-30 11:20 09 09 35.69 +46 21 06.5 41.799041 77.860600 n.a. n.a. 0.987312615749 -0.3398727 0.00226884658595 0.1508333 118.6249 /L 61.2595 113.8/ 0.6691 n.a. n.a. 12.065186 204.55358 24.506878 2024-Nov-30 11:30 09 09 30.82 +46 19 14.6 35.796559 79.137308 n.a. n.a. 0.987311257086 -0.3406749 0.00226948221687 0.1600348 118.6437 /L 61.2408 113.9/ 0.6586 n.a. n.a. 12.483233 204.18645 25.049131 2024-Nov-30 11:40 09 09 25.88 +46 17 18.4 28.128257 80.224611 n.a. n.a. 0.987309895212 -0.3414763 0.00227015493015 0.1693361 118.6626 /L 61.2218 114.0/ 0.6484 n.a. n.a. 12.893194 203.73401 25.578044 2024-Nov-30 11:50 09 09 20.87 +46 15 18.2 18.620848 81.051330 n.a. n.a. 0.987308530131 -0.3422769 0.00227086508428 0.1787163 118.6817 /L 61.2027 114.1/ 0.6386 n.a. n.a. 13.294713 203.20431 26.093423 2024-Nov-30 12:00 09 09 15.84 +46 13 13.7 7.480530 81.539136 n.a. n.a. 0.987307161846 -0.3430766 0.00227161295307 0.1881541 118.7008 /L 61.1836 114.2/ 0.6290 n.a. n.a. 13.687525 202.60433 26.594990 2024-Nov-30 12:10 t 09 09 10.80 +46 11 05.1 355.496529 81.627360 n.a. n.a. 0.987305790360 -0.3438756 0.00227239872502 0.1976282 118.7200 /L 61.1644 114.3/ 0.6197 n.a. n.a. 14.071437 201.94011 27.082405 2024-Nov-30 12:20 09 09 05.78 +46 08 52.3 343.857909 81.303037 n.a. n.a. 0.987304415678 -0.3446737 0.00227322250277 0.2071172 118.7390 /L 61.1454 114.4/ 0.6106 n.a. n.a. 14.446328 201.21695 27.555277 2024-Nov-30 12:30 09 09 00.80 +46 06 35.4 333.581590 80.608415 n.a. n.a. 0.987303037803 -0.3454710 0.00227408430279 0.2165994 118.7579 /L 61.1265 114.5/ 0.6019 n.a. n.a. 14.812134 200.43949 28.013181 2024-Nov-30 12:40 09 08 55.90 +46 04 14.4 325.117492 79.617508 n.a. n.a. 0.987301656738 -0.3462675 0.00227498405532 0.2260535 118.7765 /L 61.1078 114.6/ 0.5935 n.a. n.a. 15.168847 199.61188 28.455661 2024-Nov-30 12:50 09 08 51.08 +46 01 49.3 318.422860 78.406274 n.a. n.a. 0.987300272487 -0.3470632 0.00227592160427 0.2354579 118.7948 /L 61.0895 114.7/ 0.5853 n.a. n.a. 15.516506 198.73778 28.882244 2024-Nov-30 13:00 A 09 08 46.39 +45 59 20.2 313.226569 77.036786 n.a. n.a. 0.987298885053 -0.3478582 0.00227689670763 0.2447911 118.8127 /L 61.0715 114.8/ 0.5774 n.a. n.a. 15.855197 197.82050 29.292441 2024-Nov-30 13:10 A 09 08 41.85 +45 56 47.2 309.218717 75.554624 n.a. n.a. 0.987297494439 -0.3486524 0.00227790903768 0.2540321 118.8302 /L 61.0540 114.8/ 0.5697 n.a. n.a. 16.185041 196.86303 29.685755 2024-Nov-30 13:20 A 09 08 37.46 +45 54 10.2 306.129819 73.991836 n.a. n.a. 0.987296100649 -0.3494457 0.00227895818179 0.2631595 118.8472 /L 61.0370 114.9/ 0.5623 n.a. n.a. 16.506196 195.86811 30.061683 2024-Nov-30 13:30 N 09 08 33.27 +45 51 29.3 303.748103 72.370750 n.a. n.a. 0.987294703686 -0.3502384 0.00228004364304 0.2721526 118.8636 /L 61.0206 115.0/ 0.5552 n.a. n.a. 16.818852 194.83824 30.419721 2024-Nov-30 13:40 N 09 08 29.29 +45 48 44.7 301.913656 70.707053 n.a. n.a. 0.987293303553 -0.3510302 0.00228116484117 0.2809907 118.8793 /L 61.0048 115.1/ 0.5483 n.a. n.a. 17.123222 193.77576 30.759369 2024-Nov-30 13:50 N 09 08 25.55 +45 45 56.5 300.507214 69.011952 n.a. n.a. 0.987291900254 -0.3518214 0.00228232111383 0.2896535 118.8943 /L 60.9898 115.2/ 0.5416 n.a. n.a. 17.419546 192.68284 31.080130 2024-Nov-30 14:00 N 09 08 22.06 +45 43 04.6 299.439776 67.293627 n.a. n.a. 0.987290493792 -0.3526117 0.00228351171775 0.2981209 118.9085 /L 60.9755 115.3/ 0.5352 n.a. n.a. 17.708082 191.56153 31.381516 2024-Nov-30 14:10 Cm 09 08 18.85 +45 40 09.3 298.644460 65.558185 n.a. n.a. 0.987289084170 -0.3534014 0.00228473583018 0.3063734 118.9219 /L 60.9621 115.3/ 0.5289 n.a. n.a. 17.989101 190.41378 31.663050 2024-Nov-30 14:20 Cm 09 08 15.94 +45 37 10.5 298.070513 63.810293 n.a. n.a. 0.987287671391 -0.3541903 0.00228599255071 0.3143918 118.9344 /L 60.9495 115.4/ 0.5230 n.a. n.a. 18.262890 189.24145 31.924267 >..... Daylight Cut-off Requested .....< >..... 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 SYSTEM Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15 (if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any) are in the Julian calendar system, which is automatically extended for dates prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for matching historical dates. The Gregorian calendar more accurately corresponds to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is available if such physical events are the primary interest. 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 ***************************************************************************************************************************************************************************************************************************************************