API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Dec 06, 2024 Gaia Observatory -139479 http://sci.esa.int/gaia/ NOTE: Science observations to end 2025-Jan-25 due to decreasing attitude control propellant. After a few weeks of engineering tests, Gaia will leave its orbit around L2 and be placed in a heliocentric disposal orbit. BACKGROUND: Gaia is designed and operated by the European Space Agency. It launched December 19, 2013 @ 09:12 UTC on a Soyuz launcher from Kourou, French Guiana. On 2014-Jan-08, it arrived at its operational Lissajous orbit around the gravitationally stable Earth-Sun Lagrange-point L2, roughly 1.5 million km from Earth in the direction opposite the Sun. The orbit is not shadowed by Earth eclipses. The orbit period is about 180 days; the size of the orbit is typically 340,000 x 90,000 km. MISSION: Gaia's 5-year primary mission is to ... * Measure the positions of ~1 billion stars both in our Galaxy and other members of the Local Group, with an accuracy down to 24 uas * Perform spectral and photometric measurements of all objects * Derive space velocities of the Galaxy's constituent stars using the stellar distances and motions * Create a three-dimensional structural map of the Galaxy Additional expected results include extrasolar planet detection, brown dwarf detection, solar system asteroid discoveries, supernova early detection, and testing of Einstein's general relativity. GAIA SPACECRAFT: Spacecraft dry mass total 1392 kg Propellant 237 kg Total launch mass 2029 kg Power: 12.8 m^2 solar array provides up to 1910 Watts SCIENCE INSTRUMENTS: Single integrated instrument that comprises three major functions: astrometry, photometry (320-1000 nm) and spectrometry (846-874 nm). The three functions use two common telescopes and a shared focal plane, with each function having a dedicated area on the large 0.5m x 1m CCD detector array. SPACECRAFT TRAJECTORY (from ESA 2024-Dec-03, predicts thereafter) Trajectory name Start Stop -------------------------------------------- ----------- ----------- ORB1_20241203_000001 2013-Dec-19 2026-Sep-14 ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Thu Dec 12 03:13:04 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Gaia (spacecraft) (-139479) {source: gaia_merged} Center body name: Earth (399) {source: gaia_merged} 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: gaia_merged} Rel. light bend : Sun {source: gaia_merged} 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 03 33 51.21 +20 11 27.4 209.821301 67.023358 n.a. n.a. 0.995685671694 -0.3225316 0.00957585746589 0.0174941 168.0739 /T 11.8121 176.2/ 1.6352 n.a. n.a. 0.0727125 166.43977 64.307319 2024-Nov-30 00:10 03 33 51.23 +20 11 26.5 215.142038 66.004783 n.a. n.a. 0.995684378214 -0.3224746 0.00957595583557 0.0315338 168.0669 /T 11.8191 176.3/ 1.6129 n.a. n.a. 0.1249859 157.60897 65.354843 2024-Nov-30 00:20 03 33 51.28 +20 11 25.1 220.066362 64.847528 n.a. n.a. 0.995683084963 -0.3224176 0.00957611020874 0.0454157 168.0599 /T 11.8260 176.3/ 1.5909 n.a. n.a. 0.1805613 152.34415 65.287842 2024-Nov-30 00:30 03 33 51.35 +20 11 23.3 224.605862 63.570399 n.a. n.a. 0.995681791940 -0.3223606 0.00957631989930 0.0591133 168.0530 /T 11.8328 176.4/ 1.5691 n.a. n.a. 0.2393035 148.34851 64.892065 2024-Nov-30 00:40 03 33 51.46 +20 11 21.1 228.783793 62.190564 n.a. n.a. 0.995680499146 -0.3223036 0.00957658411529 0.0726004 168.0462 /T 11.8395 176.4/ 1.5475 n.a. n.a. 0.3012998 144.99841 64.339907 2024-Nov-30 00:50 03 33 51.60 +20 11 18.4 232.629767 60.723261 n.a. n.a. 0.995679206581 -0.3222466 0.00957690196047 0.0858512 168.0395 /T 11.8461 176.5/ 1.5263 n.a. n.a. 0.3666579 142.05326 63.692120 2024-Nov-30 01:00 03 33 51.78 +20 11 15.3 236.175875 59.181753 n.a. n.a. 0.995677914244 -0.3221896 0.00957727243607 0.0988403 168.0330 /T 11.8526 176.5/ 1.5053 n.a. n.a. 0.4354680 139.39829 62.976657 2024-Nov-30 01:10 03 33 52.00 +20 11 11.8 239.454134 57.577443 n.a. n.a. 0.995676622136 -0.3221326 0.00957769444275 0.1115430 168.0266 /T 11.8589 176.6/ 1.4846 n.a. n.a. 0.5077942 136.96983 62.208930 2024-Nov-30 01:20 03 33 52.27 +20 11 07.9 242.494959 55.920068 n.a. n.a. 0.995675330257 -0.3220755 0.00957816678279 0.1239350 168.0204 /T 11.8651 176.6/ 1.4642 n.a. n.a. 0.5836728 134.72817 61.398625 2024-Nov-30 01:30 03 33 52.60 +20 11 03.6 245.326371 54.217911 n.a. n.a. 0.995674038607 -0.3220185 0.00957868816238 0.1359926 168.0143 /T 11.8711 176.6/ 1.4441 n.a. n.a. 0.6631130 132.64613 60.552452 2024-Nov-30 01:40 03 33 52.97 +20 10 58.9 247.973677 52.478022 n.a. n.a. 0.995672747186 -0.3219614 0.00957925719424 0.1476929 168.0085 /T 11.8769 176.7/ 1.4243 n.a. n.a. 0.7460994 130.70366 59.675393 2024-Nov-30 01:50 03 33 53.40 +20 10 53.9 250.459451 50.706404 n.a. n.a. 0.995671455993 -0.3219044 0.00957987240026 0.1590136 168.0028 /T 11.8825 176.7/ 1.4048 n.a. n.a. 0.8325930 128.88510 58.771346 2024-Nov-30 02:00 03 33 53.89 +20 10 48.5 252.803672 48.908196 n.a. n.a. 0.995670165029 -0.3218473 0.00958053221446 0.1699332 167.9974 /T 11.8878 176.7/ 1.3856 n.a. n.a. 0.9225341 127.17773 57.843473 2024-Nov-30 02:10 03 33 54.45 +20 10 42.8 255.023944 47.087813 n.a. n.a. 0.995668874295 -0.3217903 0.00958123498605 0.1804309 167.9922 /T 11.8930 176.7/ 1.3668 n.a. n.a. 1.0158435 125.57083 56.894406 2024-Nov-30 02:20 03 33 55.07 +20 10 36.7 257.135751 45.249072 n.a. n.a. 0.995667583789 -0.3217332 0.00958197898265 0.1904867 167.9872 /T 11.8979 176.7/ 1.3483 n.a. n.a. 1.1124247 124.05522 55.926375 2024-Nov-30 02:30 03 33 55.76 +20 10 30.3 259.152712 43.395299 n.a. n.a. 0.995666293512 -0.3216761 0.00958276239362 0.2000817 167.9825 /T 11.9025 176.7/ 1.3301 n.a. n.a. 1.2121651 122.62286 54.941305 2024-Nov-30 02:40 03 33 56.52 +20 10 23.7 261.086818 41.529410 n.a. n.a. 0.995665003464 -0.3216190 0.00958358333371 0.2091976 167.9781 /T 11.9069 176.8/ 1.3122 n.a. n.a. 1.3149379 121.26669 53.940862 2024-Nov-30 02:50 03 33 57.36 +20 10 16.8 262.948653 39.653987 n.a. n.a. 0.995663713645 -0.3215620 0.00958443984658 0.2178172 167.9739 /T 11.9110 176.8/ 1.2947 n.a. n.a. 1.4206032 119.98038 52.926515 2024-Nov-30 03:00 03 33 58.27 +20 10 09.6 264.747588 37.771334 n.a. n.a. 0.995662424055 -0.3215049 0.00958532990876 0.2259243 167.9700 /T 11.9149 176.8/ 1.2775 n.a. n.a. 1.5290094 118.75828 51.899552 2024-Nov-30 03:10 03 33 59.27 +20 10 02.1 266.491953 35.883526 n.a. n.a. 0.995661134694 -0.3214478 0.00958625143345 0.2335035 167.9665 /T 11.9184 176.7/ 1.2607 n.a. n.a. 1.6399941 117.59530 50.861120 2024-Nov-30 03:20 03 34 00.34 +20 09 54.4 268.189182 33.992452 n.a. n.a. 0.995659845562 -0.3213907 0.00958720227470 0.2405406 167.9632 /T 11.9216 176.7/ 1.2442 n.a. n.a. 1.7533853 116.48685 49.812241 2024-Nov-30 03:30 03 34 01.50 +20 09 46.5 269.845944 32.099849 n.a. n.a. 0.995658556660 -0.3213335 0.00958818023144 0.2470225 167.9602 /T 11.9246 176.7/ 1.2280 n.a. n.a. 1.8690023 115.42874 48.753828 2024-Nov-30 03:40 03 34 02.74 +20 09 38.4 271.468252 30.207327 n.a. n.a. 0.995657267986 -0.3212764 0.00958918305184 0.2529369 167.9576 /T 11.9272 176.7/ 1.2122 n.a. n.a. 1.9866566 114.41720 47.686699 2024-Nov-30 03:50 03 34 04.07 +20 09 30.2 273.061555 28.316401 n.a. n.a. 0.995655979542 -0.3212193 0.00959020843764 0.2582729 167.9553 /T 11.9294 176.7/ 1.1967 n.a. n.a. 2.1061528 113.44877 46.611592 2024-Nov-30 04:00 03 34 05.49 +20 09 21.8 274.630824 26.428503 n.a. n.a. 0.995654691326 -0.3211622 0.00959125404857 0.2630206 167.9533 /T 11.9314 176.7/ 1.1816 n.a. n.a. 2.2272895 112.52029 45.529171 2024-Nov-30 04:10 03 34 07.00 +20 09 13.2 276.180619 24.545007 n.a. n.a. 0.995653403340 -0.3211050 0.00959231750683 0.2671711 167.9516 /T 11.9330 176.6/ 1.1668 n.a. n.a. 2.3498597 111.62889 44.440039 2024-Nov-30 04:20 03 34 08.59 +20 09 04.5 277.715147 22.667240 n.a. n.a. 0.995652115583 -0.3210479 0.00959339640178 0.2707169 167.9504 /T 11.9343 176.6/ 1.1524 n.a. n.a. 2.4736517 110.77193 43.344740 2024-Nov-30 04:30 03 34 10.28 +20 08 55.8 279.238317 20.796500 n.a. n.a. 0.995650828055 -0.3209908 0.00959448829436 0.2736514 167.9494 /T 11.9352 176.6/ 1.1383 n.a. n.a. 2.5984500 109.94699 42.243769 2024-Nov-30 04:40 03 34 12.07 +20 08 46.9 280.753782 18.934063 n.a. n.a. 0.995649540756 -0.3209336 0.00959559072204 0.2759694 167.9488 /T 11.9357 176.5/ 1.1246 n.a. n.a. 2.7240355 109.15184 41.137578 2024-Nov-30 04:50 03 34 13.94 +20 08 38.0 282.264981 17.081201 n.a. n.a. 0.995648253687 -0.3208764 0.00959670120326 0.2776667 167.9486 /T 11.9359 176.5/ 1.1111 n.a. n.a. 2.8501865 108.38443 40.026577 2024-Nov-30 05:00 03 34 15.91 +20 08 29.1 283.775165 15.239183 n.a. n.a. 0.995646966847 -0.3208193 0.00959781724243 0.2787405 167.9487 /T 11.9358 176.5/ 1.0980 n.a. n.a. 2.9766792 107.64289 38.911143 2024-Nov-30 05:10 03 34 17.97 +20 08 20.1 285.287433 13.409294 n.a. n.a. 0.995645680236 -0.3207621 0.00959893633447 0.2791889 167.9492 /T 11.9353 176.4/ 1.0853 n.a. n.a. 3.1032881 106.92546 37.791619 2024-Nov-30 05:20 03 34 20.13 +20 08 11.1 286.804753 11.592836 n.a. n.a. 0.995644393854 -0.3207050 0.00960005596973 0.2790114 167.9501 /T 11.9344 176.4/ 1.0728 n.a. n.a. 3.2297870 106.23053 36.668322 2024-Nov-30 05:30 03 34 22.38 +20 08 02.2 288.329981 9.791138 n.a. n.a. 0.995643107702 -0.3206478 0.00960117363876 0.2782086 167.9513 /T 11.9332 176.3/ 1.0607 n.a. n.a. 3.3559489 105.55662 35.541540 2024-Nov-30 05:40 03 34 24.72 +20 07 53.3 289.865883 8.005568 n.a. n.a. 0.995641821779 -0.3205906 0.00960228683697 0.2767824 167.9529 /T 11.9316 176.3/ 1.0489 n.a. n.a. 3.4815471 104.90233 34.411541 2024-Nov-30 05:50 A 03 34 27.16 +20 07 44.4 291.415148 6.237532 n.a. n.a. 0.995640536086 -0.3205334 0.00960339306947 0.2747358 167.9549 /T 11.9296 176.3/ 1.0374 n.a. n.a. 3.6063557 104.26638 33.278570 2024-Nov-30 06:00 A 03 34 29.69 +20 07 35.6 292.980399 4.488490 n.a. n.a. 0.995639250622 -0.3204762 0.00960448985581 0.2720729 167.9572 /T 11.9273 176.2/ 1.0262 n.a. n.a. 3.7301494 103.64757 32.142854 2024-Nov-30 06:10 A 03 34 32.31 +20 07 27.0 294.564204 2.759955 n.a. n.a. 0.995637965387 -0.3204190 0.00960557473454 0.2687990 167.9599 /T 11.9247 176.2/ 1.0153 n.a. n.a. 3.8527052 103.04479 31.004601 2024-Nov-30 06:20 N 03 34 35.02 +20 07 18.4 296.169082 1.053505 n.a. n.a. 0.995636680381 -0.3203618 0.00960664526801 0.2649208 167.9629 /T 11.9216 176.1/ 1.0047 n.a. n.a. 3.9738015 102.45699 29.864006 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2024-Nov-30 17:00 C 03 38 28.02 +20 09 48.8 72.277880 10.547422 n.a. n.a. 0.995554918230 -0.3166885 0.00958694037325 -0.3774552 168.4222 /T 11.4669 173.7/ 0.5536 n.a. n.a. 3.4144532 69.786659 -43.64631 2024-Nov-30 17:10 C 03 38 30.25 +20 10 00.7 73.798550 12.355583 n.a. n.a. 0.995553648184 -0.3166309 0.00958542517227 -0.3779940 168.4244 /T 11.4648 173.6/ 0.5454 n.a. n.a. 3.2919910 68.961557 -44.73767 2024-Nov-30 17:20 N 03 38 32.38 +20 10 12.5 75.312443 14.177956 n.a. n.a. 0.995552378370 -0.3165733 0.00958390906448 -0.3779073 168.4261 /T 11.4630 173.6/ 0.5372 n.a. n.a. 3.1693663 68.105151 -45.82312 2024-Nov-30 17:30 N 03 38 34.42 +20 10 24.4 76.822458 16.013226 n.a. n.a. 0.995551108787 -0.3165157 0.00958239455936 -0.3771949 168.4276 /T 11.4616 173.5/ 0.5288 n.a. n.a. 3.0468113 67.215206 -46.90218 2024-Nov-30 17:40 N 03 38 36.37 +20 10 36.3 78.331610 17.860101 n.a. n.a. 0.995549839435 -0.3164581 0.00958088416454 -0.3758580 168.4286 /T 11.4606 173.5/ 0.5204 n.a. n.a. 2.9245579 66.289305 -47.97431 2024-Nov-30 17:50 N 03 38 38.22 +20 10 48.0 79.843053 19.717306 n.a. n.a. 0.995548570314 -0.3164005 0.00957938038092 -0.3738987 168.4293 /T 11.4599 173.4/ 0.5120 n.a. n.a. 2.8028368 65.324845 -49.03895 2024-Nov-30 18:00 A 03 38 39.98 +20 10 59.8 81.360110 21.583574 n.a. n.a. 0.995547301424 -0.3163429 0.00957788569808 -0.3713206 168.4296 /T 11.4596 173.4/ 0.5035 n.a. n.a. 2.6818771 64.319016 -50.09547 2024-Nov-30 18:10 A 03 38 41.65 +20 11 11.4 82.886297 23.457635 n.a. n.a. 0.995546032765 -0.3162853 0.00957640258928 -0.3681282 168.4296 /T 11.4597 173.3/ 0.4950 n.a. n.a. 2.5619060 63.268784 -51.14317 2024-Nov-30 18:20 A 03 38 43.23 +20 11 22.9 84.425363 25.338208 n.a. n.a. 0.995544764337 -0.3162277 0.00957493350701 -0.3643273 168.4292 /T 11.4601 173.3/ 0.4864 n.a. n.a. 2.4431473 62.170882 -52.18131 2024-Nov-30 18:30 03 38 44.72 +20 11 34.3 85.981332 27.223989 n.a. n.a. 0.995543496140 -0.3161700 0.00957348087802 -0.3599250 168.4285 /T 11.4608 173.2/ 0.4779 n.a. n.a. 2.3258217 61.021790 -53.20904 2024-Nov-30 18:40 03 38 46.12 +20 11 45.5 87.558543 29.113634 n.a. n.a. 0.995542228174 -0.3161124 0.00957204709890 -0.3549293 168.4274 /T 11.4619 173.1/ 0.4693 n.a. n.a. 2.2101452 59.817724 -54.22548 2024-Nov-30 18:50 03 38 47.43 +20 11 56.6 89.161712 31.005753 n.a. n.a. 0.995540960440 -0.3160548 0.00957063453128 -0.3493495 168.4259 /T 11.4634 173.1/ 0.4607 n.a. n.a. 2.0963288 58.554621 -55.22960 2024-Nov-30 19:00 03 38 48.65 +20 12 07.5 90.795994 32.898885 n.a. n.a. 0.995539692937 -0.3159971 0.00956924549745 -0.3431960 168.4241 /T 11.4652 173.0/ 0.4520 n.a. n.a. 1.9845772 57.228133 -56.22032 2024-Nov-30 19:10 03 38 49.80 +20 12 18.1 92.467053 34.791483 n.a. n.a. 0.995538425665 -0.3159395 0.00956788227575 -0.3364803 168.4220 /T 11.4673 172.9/ 0.4434 n.a. n.a. 1.8750884 55.833624 -57.19643 2024-Nov-30 19:20 03 38 50.86 +20 12 28.6 94.181157 36.681893 n.a. n.a. 0.995537158624 -0.3158818 0.00956654709625 -0.3292150 168.4195 /T 11.4698 172.9/ 0.4349 n.a. n.a. 1.7680519 54.366173 -58.15660 2024-Nov-30 19:30 03 38 51.83 +20 12 38.8 95.945269 38.568325 n.a. n.a. 0.995535891815 -0.3158241 0.00956524213641 -0.3214137 168.4167 /T 11.4726 172.8/ 0.4263 n.a. n.a. 1.6636480 52.820583 -59.09940 2024-Nov-30 19:40 03 38 52.74 +20 12 48.7 97.767171 40.448823 n.a. n.a. 0.995534625237 -0.3157665 0.00956396951685 -0.3130911 168.4136 /T 11.4757 172.7/ 0.4178 n.a. n.a. 1.5620465 51.191416 -60.02322 2024-Nov-30 19:50 03 38 53.56 +20 12 58.4 99.655601 42.321230 n.a. n.a. 0.995533358890 -0.3157088 0.00956273129728 -0.3042629 168.4102 /T 11.4791 172.7/ 0.4093 n.a. n.a. 1.4634048 49.473028 -60.92634 2024-Nov-30 20:00 03 38 54.31 +20 13 07.8 101.620404 44.183141 n.a. n.a. 0.995532092774 -0.3156511 0.00956152947242 -0.2949458 168.4065 /T 11.4828 172.6/ 0.4008 n.a. n.a. 1.3678663 47.659643 -61.80687 2024-Nov-30 20:10 03 38 55.00 +20 13 16.9 103.672721 46.031853 n.a. n.a. 0.995530826890 -0.3155934 0.00956036596826 -0.2851573 168.4025 /T 11.4867 172.5/ 0.3924 n.a. n.a. 1.2755590 45.745441 -62.66276 2024-Nov-30 20:20 03 38 55.61 +20 13 25.6 105.825188 47.864300 n.a. n.a. 0.995529561238 -0.3155358 0.00955924263816 -0.2749162 168.3982 /T 11.4910 172.4/ 0.3841 n.a. n.a. 1.1865924 43.724700 -63.49181 2024-Nov-30 20:30 03 38 56.16 +20 13 34.1 108.092171 49.676975 n.a. n.a. 0.995528295817 -0.3154781 0.00955816125934 -0.2642417 168.3937 /T 11.4955 172.4/ 0.3758 n.a. n.a. 1.1010559 41.591961 -64.29166 2024-Nov-30 20:40 03 38 56.65 +20 13 42.1 110.490014 51.465837 n.a. n.a. 0.995527030627 -0.3154203 0.00955712352938 -0.2531541 168.3889 /T 11.5003 172.3/ 0.3677 n.a. n.a. 1.0190153 39.342266 -65.05982 2024-Nov-30 20:50 03 38 57.08 +20 13 49.8 113.037297 53.226204 n.a. n.a. 0.995525765669 -0.3153626 0.00955613106290 -0.2416747 168.3838 /T 11.5053 172.2/ 0.3596 n.a. n.a. 0.9405106 36.971431 -65.79367 2024-Nov-30 21:00 03 38 57.45 +20 13 57.2 115.755083 54.952612 n.a. n.a. 0.995524500942 -0.3153049 0.00955518538837 -0.2298251 168.3785 /T 11.5106 172.1/ 0.3516 n.a. n.a. 0.8655520 34.476403 -66.49055 2024-Nov-30 21:10 03 38 57.77 +20 14 04.1 118.667125 56.638659 n.a. n.a. 0.995523236447 -0.3152472 0.00955428794518 -0.2176280 168.3730 /T 11.5161 172.0/ 0.3437 n.a. n.a. 0.7941167 31.855674 -67.14778 2024-Nov-30 21:20 03 38 58.05 +20 14 10.7 121.799952 58.276827 n.a. n.a. 0.995521972183 -0.3151895 0.00955344008078 -0.2051066 168.3673 /T 11.5217 172.0/ 0.3359 n.a. n.a. 0.7261456 29.109751 -67.76277 2024-Nov-30 21:30 03 38 58.27 +20 14 16.8 125.182752 59.858270 n.a. n.a. 0.995520708152 -0.3151317 0.00955264304805 -0.1922849 168.3614 /T 11.5276 171.9/ 0.3283 n.a. n.a. 0.6615394 26.241692 -68.33318 2024-Nov-30 21:40 03 38 58.46 +20 14 22.6 128.846898 61.372595 n.a. n.a. 0.995519444351 -0.3150740 0.00955189800283 -0.1791872 168.3553 /T 11.5337 171.8/ 0.3208 n.a. n.a. 0.6001561 23.257676 -68.85711 2024-Nov-30 21:50 03 38 58.61 +20 14 27.9 132.824896 62.807655 n.a. n.a. 0.995518180782 -0.3150163 0.00955120600169 -0.1658387 168.3490 /T 11.5399 171.7/ 0.3134 n.a. n.a. 0.5418083 20.167603 -69.33334 2024-Nov-30 22:00 03 38 58.73 +20 14 32.7 137.148474 64.149370 n.a. n.a. 0.995516917445 -0.3149585 0.00955056799979 -0.1522648 168.3426 /T 11.5462 171.6/ 0.3062 n.a. n.a. 0.4862616 16.985737 -69.76178 2024-Nov-30 22:10 03 38 58.81 +20 14 37.2 141.845512 65.381668 n.a. n.a. 0.995515654340 -0.3149007 0.00954998484904 -0.1384916 168.3360 /T 11.5527 171.5/ 0.2991 n.a. n.a. 0.4332352 13.731419 -70.14402 2024-Nov-30 22:20 03 38 58.87 +20 14 41.2 146.935553 66.486607 n.a. n.a. 0.995514391466 -0.3148430 0.00954945729647 -0.1245453 168.3294 /T 11.5594 171.4/ 0.2922 n.a. n.a. 0.3824032 10.430043 -70.48425 2024-Nov-30 22:30 03 38 58.91 +20 14 44.7 152.423918 67.444818 n.a. n.a. 0.995513128825 -0.3147852 0.00954898598262 -0.1104527 168.3226 /T 11.5661 171.3/ 0.2854 n.a. n.a. 0.3333991 7.1146658 -70.79078 2024-Nov-30 22:40 03 38 58.93 +20 14 47.8 158.294998 68.236359 n.a. n.a. 0.995511866414 -0.3147274 0.00954857144043 -0.0962407 168.3157 /T 11.5729 171.2/ 0.2788 n.a. n.a. 0.2858212 3.8293258 -71.07883 2024-Nov-30 22:50 03 38 58.94 +20 14 50.4 164.506147 68.842068 n.a. n.a. 0.995510604236 -0.3146697 0.00954821409409 -0.0819366 168.3087 /T 11.5798 171.1/ 0.2724 n.a. n.a. 0.2392416 0.6366987 -71.37604 2024-Nov-30 23:00 03 38 58.94 +20 14 52.6 170.984429 69.245332 n.a. n.a. 0.995509342290 -0.3146119 0.00954791425824 -0.0675677 168.3017 /T 11.5867 171.0/ 0.2662 n.a. n.a. 0.1932171 357.63797 -71.73505 2024-Nov-30 23:10 03 38 58.93 +20 14 54.3 177.628668 69.434020 n.a. n.a. 0.995508080575 -0.3145541 0.00954767213736 -0.0531617 168.2947 /T 11.5937 170.9/ 0.2602 n.a. n.a. 0.1473047 355.03269 -72.26619 2024-Nov-30 23:20 t 03 38 58.92 +20 14 55.5 184.318064 69.402135 n.a. n.a. 0.995506819092 -0.3144963 0.00954748782535 -0.0387460 168.2876 /T 11.6007 170.8/ 0.2543 n.a. n.a. 0.1010928 353.35067 -73.24215 2024-Nov-30 23:30 03 38 58.91 +20 14 56.3 190.926197 69.150707 n.a. n.a. 0.995505557841 -0.3144385 0.00954736130538 -0.0243483 168.2805 /T 11.6078 170.7/ 0.2487 n.a. n.a. 0.0543415 354.91387 -75.55625 2024-Nov-30 23:40 03 38 58.91 +20 14 56.6 197.336676 68.687640 n.a. n.a. 0.995504296822 -0.3143807 0.00954729244987 -0.0099963 168.2734 /T 11.6148 170.6/ 0.2433 n.a. n.a. 0.0112312 44.680054 -82.61198 2024-Nov-30 23:50 03 38 58.92 +20 14 56.4 203.455879 68.026551 n.a. n.a. 0.995503036035 -0.3143229 0.00954728102076 0.0042827 168.2663 /T 11.6218 170.5/ 0.2380 n.a. n.a. 0.0462145 145.14115 38.765467 2024-Dec-01 00:00 03 38 58.95 +20 14 55.8 209.219672 67.184988 n.a. n.a. 0.995501775479 -0.3142651 0.00954732667005 0.0184612 168.2593 /T 11.6288 170.4/ 0.2330 n.a. n.a. 0.0976912 148.73758 58.588213 $$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 ***************************************************************************************************************************************************************************************************************************************************