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 03:14:51 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: El Berrueco ******************************************************************************* 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 : 356.4134, 40.8833094, 1.06361 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 356.4134,4829.88693,4153.33056 {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 2024-Nov-30 00:00 09 03 48.35 +48 22 20.1 56.244905 40.959646 n.a. n.a. 0.987397246289 -0.2829292 0.00221057784578 0.1022405 119.2515 /L 60.6366 109.6/ 1.6352 n.a. n.a. 6.0017341 133.22935 32.521054 2024-Nov-30 00:10 09 03 52.49 +48 21 38.3 56.964834 42.527529 n.a. n.a. 0.987396116064 -0.2838072 0.00221100523380 0.1038122 119.2458 /L 60.6423 109.7/ 1.6129 n.a. n.a. 5.7319700 138.05180 34.126339 2024-Nov-30 00:20 09 03 56.08 +48 20 54.9 57.652264 44.109583 n.a. n.a. 0.987394982310 -0.2846838 0.00221143972344 0.1057973 119.2416 /L 60.6465 109.7/ 1.5909 n.a. n.a. 5.5259968 143.33338 35.613298 2024-Nov-30 00:30 09 03 59.15 +48 20 09.7 58.305279 45.704992 n.a. n.a. 0.987393845034 -0.2855589 0.00221188296124 0.1081899 119.2388 /L 60.6492 109.8/ 1.5691 n.a. n.a. 5.3901235 148.96542 36.898845 2024-Nov-30 00:40 09 04 01.70 +48 19 22.5 58.921577 47.312935 n.a. n.a. 0.987392704239 -0.2864327 0.00221233656831 0.1109833 119.2375 /L 60.6505 109.9/ 1.5475 n.a. n.a. 5.3284380 154.78950 37.915997 2024-Nov-30 00:50 09 04 03.75 +48 18 33.3 59.498398 48.932579 n.a. n.a. 0.987391559934 -0.2873050 0.00221280213699 0.1141698 119.2376 /L 60.6504 110.0/ 1.5263 n.a. n.a. 5.3419912 160.61577 38.627914 2024-Nov-30 01:00 09 04 05.30 +48 17 41.7 60.032422 50.563073 n.a. n.a. 0.987390412123 -0.2881760 0.00221328122784 0.1177413 119.2390 /L 60.6490 110.1/ 1.5053 n.a. n.a. 5.4284952 166.25252 39.034233 2024-Nov-30 01:10 09 04 06.38 +48 16 47.8 60.519644 52.203539 n.a. n.a. 0.987389260811 -0.2890456 0.00221377536643 0.1216885 119.2417 /L 60.6462 110.2/ 1.4846 n.a. n.a. 5.5826733 171.53656 39.167214 2024-Nov-30 01:20 09 04 07.00 +48 15 51.2 60.955217 53.853062 n.a. n.a. 0.987388106005 -0.2899139 0.00221428604023 0.1260017 119.2457 /L 60.6422 110.3/ 1.4642 n.a. n.a. 5.7971233 176.35313 39.080328 2024-Nov-30 01:30 09 04 07.17 +48 14 52.0 61.333245 55.510678 n.a. n.a. 0.987386947711 -0.2907808 0.00221481469570 0.1306701 119.2509 /L 60.6370 110.4/ 1.4441 n.a. n.a. 6.0633694 180.64072 38.834792 2024-Nov-30 01:40 09 04 06.91 +48 13 49.9 61.646520 57.175353 n.a. n.a. 0.987385785933 -0.2916464 0.00221536273527 0.1356824 119.2573 /L 60.6305 110.5/ 1.4243 n.a. n.a. 6.3727954 184.38380 38.488745 2024-Nov-30 01:50 09 04 06.25 +48 12 44.8 61.886168 58.845962 n.a. n.a. 0.987384620678 -0.2925107 0.00221593151448 0.1410267 119.2649 /L 60.6230 110.6/ 1.4048 n.a. n.a. 6.7172944 187.59980 38.090989 2024-Nov-30 02:00 09 04 05.19 +48 11 36.5 62.041185 60.521261 n.a. n.a. 0.987383451951 -0.2933736 0.00221652233922 0.1466902 119.2735 /L 60.6143 110.7/ 1.3856 n.a. n.a. 7.0896225 190.32598 37.678847 2024-Nov-30 02:10 09 04 03.76 +48 10 25.1 62.097808 62.199843 n.a. n.a. 0.987382279757 -0.2942353 0.00221713646296 0.1526594 119.2832 /L 60.6047 110.7/ 1.3668 n.a. n.a. 7.4835218 192.60902 37.278700 2024-Nov-30 02:20 09 04 01.98 +48 09 10.3 62.038654 63.880082 n.a. n.a. 0.987381104103 -0.2950956 0.00221777508424 0.1589205 119.2938 /L 60.5940 110.8/ 1.3483 n.a. n.a. 7.8937008 194.49788 36.907781 2024-Nov-30 02:30 09 03 59.87 +48 07 52.0 61.841530 65.560055 n.a. n.a. 0.987379924992 -0.2959547 0.00221843934404 0.1654586 119.3053 /L 60.5825 110.9/ 1.3301 n.a. n.a. 8.3157419 196.03970 36.576299 2024-Nov-30 02:40 09 03 57.46 +48 06 30.2 61.477752 67.237428 n.a. n.a. 0.987378742431 -0.2968125 0.00221913032343 0.1722586 119.3177 /L 60.5700 111.0/ 1.3122 n.a. n.a. 8.7459818 197.27758 36.289379 2024-Nov-30 02:50 09 03 54.75 +48 05 04.8 60.909755 68.909295 n.a. n.a. 0.987377556425 -0.2976690 0.00221984904134 0.1793048 119.3309 /L 60.5568 111.1/ 1.2947 n.a. n.a. 9.1813908 198.24985 36.048640 2024-Nov-30 03:00 09 03 51.78 +48 03 35.6 60.087617 70.571928 n.a. n.a. 0.987376366980 -0.2985242 0.00222059645226 0.1865807 119.3448 /L 60.5429 111.2/ 1.2775 n.a. n.a. 9.6194647 198.98989 35.853385 2024-Nov-30 03:10 09 03 48.58 +48 02 02.6 58.943952 72.220414 n.a. n.a. 0.987375174099 -0.2993782 0.00222137344430 0.1940696 119.3594 /L 60.5283 111.3/ 1.2607 n.a. n.a. 10.058131 199.52652 35.701467 2024-Nov-30 03:20 09 03 45.15 +48 00 25.7 57.386331 73.848072 n.a. n.a. 0.987373977790 -0.3002310 0.00222218083720 0.2017542 119.3746 /L 60.5131 111.4/ 1.2442 n.a. n.a. 10.495673 199.88446 35.589888 2024-Nov-30 03:30 09 03 41.53 +47 58 44.9 55.286004 75.445536 n.a. n.a. 0.987372778057 -0.3010825 0.00222301938060 0.2096169 119.3903 /L 60.4974 111.5/ 1.2280 n.a. n.a. 10.930666 200.08481 35.515202 2024-Nov-30 03:40 09 03 37.75 +47 57 00.1 52.461386 76.999267 n.a. n.a. 0.987371574904 -0.3019328 0.00222388975236 0.2176394 119.4064 /L 60.4812 111.6/ 1.2122 n.a. n.a. 11.361928 200.14565 35.473786 2024-Nov-30 03:50 09 03 33.82 +47 55 11.3 48.655306 78.489112 n.a. n.a. 0.987370368338 -0.3027819 0.00222479255709 0.2258035 119.4230 /L 60.4646 111.7/ 1.1967 n.a. n.a. 11.788478 200.08240 35.462008 2024-Nov-30 04:00 09 03 29.77 +47 53 18.4 43.509126 79.884358 n.a. n.a. 0.987369158364 -0.3036298 0.00222572832476 0.2340903 119.4399 /L 60.4476 111.8/ 1.1816 n.a. n.a. 12.209505 199.90831 35.476335 2024-Nov-30 04:10 09 03 25.63 +47 51 21.4 36.553009 81.137785 n.a. n.a. 0.987367944985 -0.3044765 0.00222669750954 0.2424808 119.4571 /L 60.4304 111.9/ 1.1668 n.a. n.a. 12.624344 199.63477 35.513390 2024-Nov-30 04:20 09 03 21.43 +47 49 20.3 27.277331 82.178567 n.a. n.a. 0.987366728208 -0.3053220 0.00222770048876 0.2509556 119.4745 /L 60.4130 112.0/ 1.1524 n.a. n.a. 13.032450 199.27161 35.569986 2024-Nov-30 04:30 09 03 17.18 +47 47 15.1 15.422847 82.910288 n.a. n.a. 0.987365508037 -0.3061663 0.00222873756197 0.2594954 119.4919 /L 60.3955 112.1/ 1.1383 n.a. n.a. 13.433384 198.82735 35.643140 2024-Nov-30 04:40 09 03 12.91 +47 45 05.7 1.543143 83.230221 n.a. n.a. 0.987364284477 -0.3070095 0.00222980895028 0.2680805 119.5094 /L 60.3780 112.2/ 1.1246 n.a. n.a. 13.826801 198.30941 35.730071 2024-Nov-30 04:50 t 09 03 08.65 +47 42 52.3 347.284005 83.079771 n.a. n.a. 0.987363057534 -0.3078515 0.00223091479579 0.2766911 119.5269 /L 60.3605 112.3/ 1.1111 n.a. n.a. 14.212435 197.72428 35.828195 2024-Nov-30 05:00 09 03 04.43 +47 40 34.7 334.541921 82.486435 n.a. n.a. 0.987361827211 -0.3086923 0.00223205516116 0.2853074 119.5443 /L 60.3430 112.4/ 1.0980 n.a. n.a. 14.590090 197.07767 35.935116 2024-Nov-30 05:10 09 03 00.26 +47 38 13.0 324.298124 81.542673 n.a. n.a. 0.987360593514 -0.3095320 0.00223323002942 0.2939095 119.5616 /L 60.3258 112.4/ 1.0853 n.a. n.a. 14.959634 196.37462 36.048611 2024-Nov-30 05:20 09 02 56.17 +47 35 47.3 316.526173 80.350877 n.a. n.a. 0.987359356448 -0.3103706 0.00223443930389 0.3024775 119.5786 /L 60.3087 112.5/ 1.0728 n.a. n.a. 15.320990 195.61963 36.166622 2024-Nov-30 05:30 09 02 52.20 +47 33 17.7 310.759580 78.991705 n.a. n.a. 0.987358116017 -0.3112081 0.00223568280829 0.3109916 119.5953 /L 60.2920 112.6/ 1.0607 n.a. n.a. 15.674128 194.81671 36.287237 2024-Nov-30 05:40 09 02 48.35 +47 30 44.0 306.497112 77.520328 n.a. n.a. 0.987356872226 -0.3120444 0.00223696028699 0.3194321 119.6116 /L 60.2756 112.7/ 1.0489 n.a. n.a. 16.019065 193.96948 36.408683 2024-Nov-30 05:50 A 09 02 44.66 +47 28 06.5 303.337319 75.972782 n.a. n.a. 0.987355625080 -0.3128796 0.00223827140546 0.3277794 119.6275 /L 60.2597 112.8/ 1.0374 n.a. n.a. 16.355853 193.08121 36.529312 2024-Nov-30 06:00 A 09 02 41.15 +47 25 25.2 300.987829 74.372580 n.a. n.a. 0.987354374584 -0.3137137 0.00223961575092 0.3360140 119.6428 /L 60.2443 112.9/ 1.0262 n.a. n.a. 16.684580 192.15489 36.647592 2024-Nov-30 06:10 A 09 02 37.84 +47 22 40.1 299.241682 72.735368 n.a. n.a. 0.987353120741 -0.3145468 0.00224099283305 0.3441168 119.6576 /L 60.2294 112.9/ 1.0153 n.a. n.a. 17.005362 191.19326 36.762093 2024-Nov-30 06:20 N 09 02 34.75 +47 19 51.3 297.952574 71.071843 n.a. n.a. 0.987351863558 -0.3153787 0.00224240208490 0.3520687 119.6718 /L 60.2152 113.0/ 1.0047 n.a. n.a. 17.318343 190.19886 36.871488 2024-Nov-30 06:30 N 09 02 31.91 +47 16 59.0 297.016025 69.389550 n.a. n.a. 0.987350603037 -0.3162096 0.00224384286405 0.3598511 119.6852 /L 60.2017 113.1/ 0.9944 n.a. n.a. 17.623687 189.17404 36.974536 2024-Nov-30 06:40 Nm 09 02 29.33 +47 14 03.2 296.356324 67.693972 n.a. n.a. 0.987349339184 -0.3170394 0.00224531445380 0.3674456 119.6979 /L 60.1890 113.2/ 0.9844 n.a. n.a. 17.921574 188.12102 37.070081 2024-Nov-30 06:50 Cm 09 02 27.04 +47 11 04.0 295.917721 65.989218 n.a. n.a. 0.987348072003 -0.3178681 0.00224681606456 0.3748342 119.7098 /L 60.1771 113.2/ 0.9746 n.a. n.a. 18.212203 187.04185 37.157044 2024-Nov-30 07:00 Cm 09 02 25.06 +47 08 01.5 295.658517 64.278459 n.a. n.a. 0.987346801499 -0.3186958 0.00224834683547 0.3819994 119.7207 /L 60.1660 113.3/ 0.9651 n.a. n.a. 18.495781 185.93853 37.234418 2024-Nov-30 07:10 Cm 09 02 23.40 +47 04 55.9 295.547046 62.564210 n.a. n.a. 0.987345527677 -0.3195225 0.00224990583600 0.3889240 119.7308 /L 60.1559 113.4/ 0.9559 n.a. n.a. 18.772524 184.81292 37.301267 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2024-Nov-30 19:10 09 16 57.75 +43 37 30.7 24.191535 -0.092809 n.a. n.a. 0.987245341031 -0.3767788 0.00234177016854 -0.0110190 117.4400 /L 62.4394 114.6/ 0.4434 n.a. n.a. 19.316942 113.34980 -1.151343 2024-Nov-30 19:20 09 17 13.94 +43 36 15.9 25.789241 0.667691 n.a. n.a. 0.987243834902 -0.3775486 0.00234171599099 -0.0215105 117.3957 /L 62.4836 114.6/ 0.4349 n.a. n.a. 18.907586 112.93560 -2.298463 2024-Nov-30 19:30 09 17 29.82 +43 35 04.0 27.365480 1.475598 n.a. n.a. 0.987242325704 -0.3783179 0.00234162023383 -0.0317403 117.3524 /L 62.5269 114.7/ 0.4263 n.a. n.a. 18.486598 112.55075 -3.468136 2024-Nov-30 19:40 09 17 45.36 +43 33 54.8 28.919525 2.329696 n.a. n.a. 0.987240813437 -0.3790867 0.00234148397949 -0.0416921 117.3101 /L 62.5692 114.7/ 0.4178 n.a. n.a. 18.054403 112.19730 -4.661325 2024-Nov-30 19:50 09 18 00.57 +43 32 48.2 30.450768 3.228743 n.a. n.a. 0.987239298104 -0.3798550 0.00234130837495 -0.0513500 117.2689 /L 62.6103 114.7/ 0.4093 n.a. n.a. 17.611465 111.87762 -5.879067 2024-Nov-30 20:00 09 18 15.42 +43 31 44.2 31.958710 4.171476 n.a. n.a. 0.987237779708 -0.3806227 0.00234109462989 -0.0606987 117.2288 /L 62.6504 114.8/ 0.4008 n.a. n.a. 17.158288 111.59437 -7.122481 2024-Nov-30 20:10 09 18 29.90 +43 30 42.5 33.442960 5.156618 n.a. n.a. 0.987236258251 -0.3813899 0.00234084401470 -0.0697233 117.1899 /L 62.6893 114.8/ 0.3924 n.a. n.a. 16.695414 111.35062 -8.392759 2024-Nov-30 20:20 09 18 44.00 +43 29 43.2 34.903228 6.182886 n.a. n.a. 0.987234733736 -0.3821566 0.00234055785839 -0.0784093 117.1521 /L 62.7271 114.8/ 0.3841 n.a. n.a. 16.223430 111.14989 -9.691169 2024-Nov-30 20:30 09 18 57.70 +43 28 46.0 36.339317 7.248996 n.a. n.a. 0.987233206164 -0.3829228 0.00234023754636 -0.0867431 117.1155 /L 62.7636 114.9/ 0.3758 n.a. n.a. 15.742972 110.99620 -11.01905 2024-Nov-30 20:40 09 19 10.99 +43 27 50.9 37.751120 8.353664 n.a. n.a. 0.987231675537 -0.3836885 0.00233988451809 -0.0947115 117.0803 /L 62.7989 114.9/ 0.3677 n.a. n.a. 15.254724 110.89417 -12.37779 2024-Nov-30 20:50 09 19 23.87 +43 26 57.7 39.138606 9.495618 n.a. n.a. 0.987230141859 -0.3844537 0.00233950026476 -0.1023018 117.0463 /L 62.8328 115.0/ 0.3596 n.a. n.a. 14.759430 110.84912 -13.76883 2024-Nov-30 21:00 09 19 36.31 +43 26 06.3 40.501821 10.673596 n.a. n.a. 0.987228605132 -0.3852184 0.00233908632662 -0.1095022 117.0136 /L 62.8654 115.0/ 0.3516 n.a. n.a. 14.257893 110.86719 -15.19361 2024-Nov-30 21:10 09 19 48.31 +43 25 16.6 41.840875 11.886351 n.a. n.a. 0.987227065356 -0.3859826 0.00233864429043 -0.1163014 116.9823 /L 62.8967 115.1/ 0.3437 n.a. n.a. 13.750990 110.95546 -16.65357 2024-Nov-30 21:20 09 19 59.87 +43 24 28.4 43.155938 13.132657 n.a. n.a. 0.987225522536 -0.3867463 0.00233817578672 -0.1226888 116.9524 /L 62.9266 115.1/ 0.3359 n.a. n.a. 13.239674 111.12213 -18.15005 2024-Nov-30 21:30 09 20 10.96 +43 23 41.6 44.447229 14.411307 n.a. n.a. 0.987223976672 -0.3875096 0.00233768248695 -0.1286547 116.9239 /L 62.9551 115.2/ 0.3283 n.a. n.a. 12.724994 111.37672 -19.68426 2024-Nov-30 21:40 09 20 21.59 +43 22 56.1 45.715016 15.721120 n.a. n.a. 0.987222427768 -0.3882723 0.00233716610061 -0.1341898 116.8968 /L 62.9822 115.3/ 0.3208 n.a. n.a. 12.208100 111.73029 -21.25712 2024-Nov-30 21:50 09 20 31.75 +43 22 11.6 46.959600 17.060938 n.a. n.a. 0.987220875824 -0.3890347 0.00233662837218 -0.1392859 116.8712 /L 63.0078 115.3/ 0.3134 n.a. n.a. 11.690272 112.19570 -22.86920 2024-Nov-30 22:00 09 20 41.42 +43 21 28.1 48.181318 18.429631 n.a. n.a. 0.987219320844 -0.3897965 0.00233607107808 -0.1439353 116.8470 /L 63.0320 115.4/ 0.3062 n.a. n.a. 11.172934 112.78794 -24.52043 2024-Nov-30 22:10 09 20 50.62 +43 20 45.4 49.380529 19.826098 n.a. n.a. 0.987217762829 -0.3905579 0.00233549602357 -0.1481314 116.8243 /L 63.0547 115.4/ 0.2991 n.a. n.a. 10.657685 113.52448 -26.20990 2024-Nov-30 22:20 09 20 59.32 +43 20 03.3 50.557614 21.249263 n.a. n.a. 0.987216201781 -0.3913189 0.00233490503933 -0.1518680 116.8031 /L 63.0759 115.5/ 0.2922 n.a. n.a. 10.146335 114.42566 -27.93552 2024-Nov-30 22:30 09 21 07.53 +43 19 21.7 51.712965 22.698082 n.a. n.a. 0.987214637702 -0.3920794 0.00233429997841 -0.1551402 116.7834 /L 63.0956 115.6/ 0.2854 n.a. n.a. 9.6409466 115.51507 -29.69348 2024-Nov-30 22:40 09 21 15.24 +43 18 40.5 52.846985 24.171539 n.a. n.a. 0.987213070595 -0.3928395 0.00233368271263 -0.1579436 116.7652 /L 63.1139 115.7/ 0.2788 n.a. n.a. 9.1438876 116.81998 -31.47775 2024-Nov-30 22:50 09 21 22.46 +43 17 59.4 53.960077 25.668649 n.a. n.a. 0.987211500462 -0.3935991 0.00233305512934 -0.1602748 116.7485 /L 63.1306 115.7/ 0.2724 n.a. n.a. 8.6578924 118.37159 -33.27926 2024-Nov-30 23:00 09 21 29.17 +43 17 18.4 55.052642 27.188453 n.a. n.a. 0.987209927303 -0.3943583 0.00233241912783 -0.1621313 116.7333 /L 63.1458 115.8/ 0.2662 n.a. n.a. 8.1861347 120.20513 -35.08495 2024-Nov-30 23:10 09 21 35.39 +43 16 37.2 56.125076 28.730023 n.a. n.a. 0.987208351122 -0.3951171 0.00233177661590 -0.1635113 116.7196 /L 63.1595 115.9/ 0.2602 n.a. n.a. 7.7323074 122.35943 -36.87670 2024-Nov-30 23:20 09 21 41.11 +43 15 55.8 57.177757 30.292458 n.a. n.a. 0.987206771920 -0.3958755 0.00233112950623 -0.1644142 116.7073 /L 63.1718 116.0/ 0.2543 n.a. n.a. 7.3007022 124.87583 -38.62999 2024-Nov-30 23:30 09 21 46.33 +43 15 13.9 58.211046 31.874885 n.a. n.a. 0.987205189699 -0.3966335 0.00233047971285 -0.1648399 116.6966 /L 63.1825 116.0/ 0.2487 n.a. n.a. 6.8962761 127.79573 -40.31267 2024-Nov-30 23:40 09 21 51.06 +43 14 31.3 59.225281 33.476458 n.a. n.a. 0.987203604461 -0.3973910 0.00232982914750 -0.1647896 116.6873 /L 63.1918 116.1/ 0.2433 n.a. n.a. 6.5246791 131.15641 -41.88391 2024-Nov-30 23:50 09 21 55.30 +43 13 48.1 60.220766 35.096357 n.a. n.a. 0.987202016208 -0.3981482 0.00232917971601 -0.1642652 116.6795 /L 63.1997 116.2/ 0.2380 n.a. n.a. 6.1922013 134.98447 -43.29381 2024-Dec-01 00:00 09 21 59.05 +43 13 03.8 61.197769 36.733787 n.a. n.a. 0.987200424942 -0.3989050 0.00232853331467 -0.1632695 116.6732 /L 63.2061 116.3/ 0.2330 n.a. n.a. 5.9055888 139.28683 -44.48432 $$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 ***************************************************************************************************************************************************************************************************************************************************