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 03:02:09 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Gaia (spacecraft) (-139479) {source: gaia_merged} Center body name: Earth (399) {source: gaia_merged} 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: 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 >..... Daylight Cut-off Requested .....< 2024-Nov-30 00:30 C 03 34 59.26 +20 08 11.5 73.233567 11.507772 n.a. n.a. 0.995681791972 -0.3223606 0.00960596172264 -0.3950290 168.3084 /T 11.5794 175.3/ 1.7904 n.a. n.a. 3.2813282 67.833928 -46.03203 2024-Nov-30 00:40 C 03 35 01.37 +20 08 23.9 74.639020 13.408122 n.a. n.a. 0.995680499176 -0.3223036 0.00960437733059 -0.3949172 168.3101 /T 11.5778 175.3/ 1.7729 n.a. n.a. 3.1543503 66.890739 -47.15755 2024-Nov-30 00:50 N 03 35 03.38 +20 08 36.3 76.037367 15.321558 n.a. n.a. 0.995679206609 -0.3222466 0.00960279469976 -0.3941508 168.3114 /T 11.5765 175.4/ 1.7552 n.a. n.a. 3.0275352 65.905351 -48.27713 2024-Nov-30 01:00 N 03 35 05.29 +20 08 48.7 77.431541 17.246894 n.a. n.a. 0.995677914270 -0.3221896 0.00960121645353 -0.3927311 168.3123 /T 11.5756 175.4/ 1.7374 n.a. n.a. 2.9011330 64.874279 -49.39021 2024-Nov-30 01:10 N 03 35 07.11 +20 09 01.1 78.824589 19.182971 n.a. n.a. 0.995676622160 -0.3221326 0.00959964520815 -0.3906604 168.3129 /T 11.5750 175.5/ 1.7193 n.a. n.a. 2.7753942 63.793693 -50.49615 2024-Nov-30 01:20 A 03 35 08.83 +20 09 13.4 80.219703 21.128647 n.a. n.a. 0.995675330279 -0.3220755 0.00959808356783 -0.3879423 168.3131 /T 11.5749 175.5/ 1.7011 n.a. n.a. 2.6505684 62.659384 -51.59424 2024-Nov-30 01:30 A 03 35 10.45 +20 09 25.5 81.620253 23.082792 n.a. n.a. 0.995674038626 -0.3220185 0.00959653411970 -0.3845817 168.3129 /T 11.5751 175.6/ 1.6826 n.a. n.a. 2.5269044 61.466715 -52.68368 2024-Nov-30 01:40 A 03 35 11.98 +20 09 37.6 83.029820 25.044277 n.a. n.a. 0.995672747203 -0.3219614 0.00959499942889 -0.3805847 168.3123 /T 11.5757 175.6/ 1.6640 n.a. n.a. 2.4046493 60.210580 -53.76358 2024-Nov-30 01:50 03 35 13.41 +20 09 49.5 84.452240 27.011963 n.a. n.a. 0.995671456008 -0.3219044 0.00959348203359 -0.3759586 168.3114 /T 11.5766 175.7/ 1.6452 n.a. n.a. 2.2840479 58.885350 -54.83293 2024-Nov-30 02:00 03 35 14.75 +20 10 01.3 85.891657 28.984689 n.a. n.a. 0.995670165042 -0.3218473 0.00959198444022 -0.3707120 168.3101 /T 11.5779 175.8/ 1.6263 n.a. n.a. 2.1653426 57.484819 -55.89059 2024-Nov-30 02:10 03 35 16.00 +20 10 12.8 87.352578 30.961263 n.a. n.a. 0.995668874305 -0.3217903 0.00959050911856 -0.3648545 168.3084 /T 11.5796 175.8/ 1.6073 n.a. n.a. 2.0487722 56.002143 -56.93528 2024-Nov-30 02:20 03 35 17.16 +20 10 24.2 88.839945 32.940442 n.a. n.a. 0.995667583796 -0.3217332 0.00958905849704 -0.3583972 168.3064 /T 11.5817 175.9/ 1.5881 n.a. n.a. 1.9345713 54.429781 -57.96556 2024-Nov-30 02:30 03 35 18.23 +20 10 35.4 90.359215 34.920921 n.a. n.a. 0.995666293517 -0.3216761 0.00958763495802 -0.3513520 168.3040 /T 11.5840 175.9/ 1.5687 n.a. n.a. 1.8229700 52.759434 -58.97976 2024-Nov-30 02:40 03 35 19.22 +20 10 46.4 91.916464 36.901306 n.a. n.a. 0.995665003467 -0.3216190 0.00958624083322 -0.3437321 168.3012 /T 11.5868 176.0/ 1.5493 n.a. n.a. 1.7141922 50.981985 -59.97601 2024-Nov-30 02:50 03 35 20.12 +20 10 57.0 93.518497 38.880099 n.a. n.a. 0.995663713645 -0.3215620 0.00958487839911 -0.3355519 168.2982 /T 11.5898 176.0/ 1.5298 n.a. n.a. 1.6084553 49.087441 -60.95220 2024-Nov-30 03:00 03 35 20.94 +20 11 07.5 95.172993 40.855663 n.a. n.a. 0.995662424053 -0.3215049 0.00958354987267 -0.3268268 168.2948 /T 11.5932 176.1/ 1.5102 n.a. n.a. 1.5059686 47.064899 -61.90587 2024-Nov-30 03:10 03 35 21.69 +20 11 17.6 96.888672 42.826191 n.a. n.a. 0.995661134690 -0.3214478 0.00958225740690 -0.3175731 168.2910 /T 11.5969 176.1/ 1.4905 n.a. n.a. 1.4069319 44.902519 -62.83427 2024-Nov-30 03:20 03 35 22.35 +20 11 27.4 98.675500 44.789662 n.a. n.a. 0.995659845556 -0.3213907 0.00958100308678 -0.3078085 168.2870 /T 11.6009 176.2/ 1.4707 n.a. n.a. 1.3115341 42.587537 -63.73421 2024-Nov-30 03:30 03 35 22.95 +20 11 36.9 100.544930 46.743793 n.a. n.a. 0.995658556651 -0.3213335 0.00957978892511 -0.2975513 168.2827 /T 11.6053 176.2/ 1.4509 n.a. n.a. 1.2199505 40.106316 -64.60209 2024-Nov-30 03:40 03 35 23.47 +20 11 46.1 102.510201 48.685973 n.a. n.a. 0.995657267975 -0.3212764 0.00957861685868 -0.2868211 168.2780 /T 11.6099 176.3/ 1.4311 n.a. n.a. 1.1323404 37.444473 -65.43377 2024-Nov-30 03:50 03 35 23.92 +20 11 55.0 104.586682 50.613184 n.a. n.a. 0.995655979528 -0.3212193 0.00957748874442 -0.2756381 168.2731 /T 11.6147 176.3/ 1.4112 n.a. n.a. 1.0488443 34.587068 -66.22453 2024-Nov-30 04:00 03 35 24.31 +20 12 03.4 106.792301 52.521902 n.a. n.a. 0.995654691310 -0.3211622 0.00957640635581 -0.2640236 168.2679 /T 11.6199 176.4/ 1.3913 n.a. n.a. 0.9695792 31.518921 -66.96899 2024-Nov-30 04:10 03 35 24.64 +20 12 11.5 109.148027 54.407969 n.a. n.a. 0.995653403322 -0.3211050 0.00957537137938 -0.2519998 168.2625 /T 11.6253 176.4/ 1.3714 n.a. n.a. 0.8946345 28.225022 -67.66105 2024-Nov-30 04:20 03 35 24.91 +20 12 19.2 111.678439 56.266440 n.a. n.a. 0.995652115562 -0.3210479 0.00957438541144 -0.2395895 168.2568 /T 11.6309 176.5/ 1.3516 n.a. n.a. 0.8240658 24.691086 -68.29375 2024-Nov-30 04:30 03 35 25.13 +20 12 26.5 114.412346 58.091381 n.a. n.a. 0.995650828032 -0.3209908 0.00957344995492 -0.2268163 168.2509 /T 11.6368 176.5/ 1.3317 n.a. n.a. 0.7578893 20.904187 -68.85922 2024-Nov-30 04:40 03 35 25.29 +20 12 33.4 117.383430 59.875621 n.a. n.a. 0.995649540732 -0.3209336 0.00957256641645 -0.2137047 168.2448 /T 11.6429 176.5/ 1.3119 n.a. n.a. 0.6960738 16.853459 -69.34855 2024-Nov-30 04:50 03 35 25.41 +20 12 39.8 120.630814 61.610448 n.a. n.a. 0.995648253660 -0.3208764 0.00957173610354 -0.2002797 168.2385 /T 11.6491 176.6/ 1.2922 n.a. n.a. 0.6385343 12.530679 -69.75161 2024-Nov-30 05:00 03 35 25.49 +20 12 45.8 124.199387 63.285236 n.a. n.a. 0.995646966818 -0.3208193 0.00957096022212 -0.1865669 168.2319 /T 11.6556 176.6/ 1.2725 n.a. n.a. 0.5851251 7.9305892 -70.05681 2024-Nov-30 05:10 03 35 25.53 +20 12 51.4 128.139569 64.887021 n.a. n.a. 0.995645680205 -0.3207621 0.00957023987403 -0.1725925 168.2253 /T 11.6622 176.6/ 1.2528 n.a. n.a. 0.5356342 3.0506009 -70.25068 2024-Nov-30 05:20 03 35 25.53 +20 12 56.5 132.505995 66.400035 n.a. n.a. 0.995644393822 -0.3207049 0.00956957605498 -0.1583832 168.2184 /T 11.6690 176.6/ 1.2333 n.a. n.a. 0.4897820 357.88950 -70.31705 2024-Nov-30 05:30 03 35 25.50 +20 13 01.2 137.354321 67.805275 n.a. n.a. 0.995643107668 -0.3206478 0.00956896965249 -0.1439663 168.2114 /T 11.6760 176.6/ 1.2139 n.a. n.a. 0.4472239 352.44464 -70.23569 2024-Nov-30 05:40 03 35 25.45 +20 13 05.4 142.735122 69.080244 n.a. n.a. 0.995641821743 -0.3205906 0.00956842144422 -0.1293694 168.2043 /T 11.6830 176.6/ 1.1946 n.a. n.a. 0.4075587 346.70700 -69.97955 2024-Nov-30 05:50 03 35 25.37 +20 13 09.1 148.683845 70.199071 n.a. n.a. 0.995640536048 -0.3205334 0.00956793209636 -0.1146203 168.1971 /T 11.6902 176.7/ 1.1754 n.a. n.a. 0.3703471 340.65334 -69.50973 2024-Nov-30 06:00 03 35 25.27 +20 13 12.4 155.206603 71.133363 n.a. n.a. 0.995639250582 -0.3204762 0.00956750216240 -0.0997474 168.1898 /T 11.6974 176.7/ 1.1563 n.a. n.a. 0.3351388 334.23421 -68.76547 2024-Nov-30 06:10 03 35 25.16 +20 13 15.1 162.263678 71.854107 n.a. n.a. 0.995637965346 -0.3204190 0.00956713208190 -0.0847792 168.1824 /T 11.7048 176.6/ 1.1374 n.a. n.a. 0.3015141 327.35579 -67.64336 2024-Nov-30 06:20 03 35 25.04 +20 13 17.4 169.756095 72.334778 n.a. n.a. 0.995636680339 -0.3203618 0.00956682217983 -0.0697444 168.1749 /T 11.7122 176.6/ 1.1186 n.a. n.a. 0.2691451 319.85177 -65.95083 2024-Nov-30 06:30 03 35 24.92 +20 13 19.3 177.523557 72.555282 n.a. n.a. 0.995635395562 -0.3203046 0.00956657266569 -0.0546717 168.1674 /T 11.7196 176.6/ 1.1000 n.a. n.a. 0.2378926 311.43879 -63.28999 2024-Nov-30 06:40 t 03 35 24.79 +20 13 20.6 185.360570 72.505674 n.a. n.a. 0.995634111014 -0.3202474 0.00956638363331 -0.0395900 168.1599 /T 11.7271 176.6/ 1.0816 n.a. n.a. 0.2079693 301.64745 -58.72451 2024-Nov-30 06:50 03 35 24.67 +20 13 21.4 193.049383 72.188236 n.a. n.a. 0.995632826696 -0.3201901 0.00956625506054 -0.0245284 168.1523 /T 11.7345 176.6/ 1.0634 n.a. n.a. 0.1802329 289.73400 -49.64804 2024-Nov-30 07:00 03 35 24.55 +20 13 21.8 200.397955 71.616990 n.a. n.a. 0.995631542607 -0.3201329 0.00956618680934 -0.0095156 168.1448 /T 11.7420 176.6/ 1.0454 n.a. n.a. 0.1566878 274.66611 -27.71197 2024-Nov-30 07:10 03 35 24.45 +20 13 21.7 207.267611 70.814859 n.a. n.a. 0.995630258748 -0.3200757 0.00956617862602 0.0054196 168.1373 /T 11.7494 176.5/ 1.0276 n.a. n.a. 0.1410709 255.58607 18.373126 2024-Nov-30 07:20 03 35 24.36 +20 13 21.1 213.582099 69.809711 n.a. n.a. 0.995628975119 -0.3200184 0.00956623014181 0.0202486 168.1298 /T 11.7568 176.5/ 1.0100 n.a. n.a. 0.1384408 233.35056 51.667895 2024-Nov-30 07:30 03 35 24.29 +20 13 20.0 219.320357 68.630631 n.a. n.a. 0.995627691719 -0.3199612 0.00956634087348 0.0349428 168.1224 /T 11.7642 176.5/ 0.9926 n.a. n.a. 0.1521696 211.51461 63.270485 2024-Nov-30 07:40 03 35 24.25 +20 13 18.5 224.501107 67.305250 n.a. n.a. 0.995626408549 -0.3199039 0.00956651022442 0.0494743 168.1151 /T 11.7715 176.4/ 0.9755 n.a. n.a. 0.1812457 193.43205 67.040455 2024-Nov-30 07:50 03 35 24.23 +20 13 16.5 229.166776 65.858257 n.a. n.a. 0.995625125609 -0.3198467 0.00956673748571 0.0638152 168.1078 /T 11.7786 176.4/ 0.9586 n.a. n.a. 0.2222370 179.69735 68.064088 2024-Nov-30 08:00 03 35 24.25 +20 13 14.0 233.370735 64.310858 n.a. n.a. 0.995623842898 -0.3197894 0.00956702183757 0.0779379 168.1007 /T 11.7857 176.3/ 0.9420 n.a. n.a. 0.2721443 169.37001 68.010651 2024-Nov-30 08:10 03 35 24.31 +20 13 11.2 237.168797 62.680829 n.a. n.a. 0.995622560417 -0.3197321 0.00956736235100 0.0918156 168.0936 /T 11.7927 176.3/ 0.9256 n.a. n.a. 0.3290820 161.41461 67.485860 2024-Nov-30 08:20 03 35 24.40 +20 13 07.8 240.614307 60.982860 n.a. n.a. 0.995621278166 -0.3196749 0.00956775798960 0.1054216 168.0868 /T 11.7995 176.2/ 0.9095 n.a. n.a. 0.3919614 155.08618 66.732258 2024-Nov-30 08:30 03 35 24.54 +20 13 04.1 243.755741 59.229005 n.a. n.a. 0.995619996145 -0.3196176 0.00956820761155 0.1187300 168.0800 /T 11.8061 176.2/ 0.8936 n.a. n.a. 0.4601437 149.89853 65.856343 2024-Nov-30 08:40 03 35 24.73 +20 12 59.9 246.635866 57.429145 n.a. n.a. 0.995618714353 -0.3195603 0.00956870997197 0.1317154 168.0735 /T 11.8126 176.1/ 0.8781 n.a. n.a. 0.5332290 145.53697 64.908925 2024-Nov-30 08:50 03 35 24.97 +20 12 55.3 249.291758 55.591386 n.a. n.a. 0.995617432792 -0.3195030 0.00956926372525 0.1443529 168.0671 /T 11.8189 176.0/ 0.8628 n.a. n.a. 0.6109426 141.79347 63.916125 2024-Nov-30 09:00 03 35 25.27 +20 12 50.3 251.755241 53.722416 n.a. n.a. 0.995616151460 -0.3194457 0.00956986742780 0.1566186 168.0609 /T 11.8250 176.0/ 0.8477 n.a. n.a. 0.6930744 138.52631 62.892299 2024-Nov-30 09:10 03 35 25.63 +20 12 44.9 254.053502 51.827782 n.a. n.a. 0.995614870358 -0.3193884 0.00957051954079 0.1684889 168.0549 /T 11.8309 175.9/ 0.8330 n.a. n.a. 0.7794470 135.63590 61.845852 2024-Nov-30 09:20 03 35 26.05 +20 12 39.2 256.209729 49.912120 n.a. n.a. 0.995613589486 -0.3193311 0.00957121843325 0.1799414 168.0492 /T 11.8366 175.8/ 0.8186 n.a. n.a. 0.8698968 133.05011 60.782001 2024-Nov-30 09:30 03 35 26.54 +20 12 33.1 258.243716 47.979340 n.a. n.a. 0.995612308844 -0.3192737 0.00957196238521 0.1909542 168.0437 /T 11.8421 175.8/ 0.8045 n.a. n.a. 0.9642652 130.71529 59.704169 2024-Nov-30 09:40 03 35 27.09 +20 12 26.6 260.172401 46.032767 n.a. n.a. 0.995611028432 -0.3192164 0.00957274959113 0.2015065 168.0385 /T 11.8472 175.7/ 0.7906 n.a. n.a. 1.0623918 128.59054 58.614728 2024-Nov-30 09:50 03 35 27.72 +20 12 19.9 262.010329 44.075261 n.a. n.a. 0.995609748250 -0.3191591 0.00957357816338 0.2115782 168.0335 /T 11.8522 175.6/ 0.7771 n.a. n.a. 1.1641123 126.64402 57.515398 2024-Nov-30 10:00 03 35 28.42 +20 12 12.8 263.770046 42.109307 n.a. n.a. 0.995608468298 -0.3191018 0.00957444613595 0.2211503 168.0288 /T 11.8568 175.5/ 0.7639 n.a. n.a. 1.2692561 124.85047 56.407485 2024-Nov-30 10:10 03 35 29.20 +20 12 05.4 265.462432 40.137083 n.a. n.a. 0.995607188576 -0.3190444 0.00957535146827 0.2302047 168.0244 /T 11.8612 175.4/ 0.7510 n.a. n.a. 1.3776460 123.18949 55.292019 2024-Nov-30 10:20 03 35 30.06 +20 11 57.7 267.096968 38.160528 n.a. n.a. 0.995605909084 -0.3189871 0.00957629204923 0.2387242 168.0202 /T 11.8652 175.4/ 0.7383 n.a. n.a. 1.4890977 121.64440 54.169832 2024-Nov-30 10:30 03 35 31.01 +20 11 49.8 268.681973 36.181383 n.a. n.a. 0.995604629822 -0.3189297 0.00957726570118 0.2466929 168.0164 /T 11.8690 175.3/ 0.7260 n.a. n.a. 1.6034198 120.20135 53.041622 2024-Nov-30 10:40 03 35 32.03 +20 11 41.7 270.224787 34.201230 n.a. n.a. 0.995603350790 -0.3188723 0.00957827018433 0.2540957 168.0130 /T 11.8724 175.2/ 0.7140 n.a. n.a. 1.7204141 118.84876 51.907981 2024-Nov-30 10:50 03 35 33.15 +20 11 33.3 271.731935 32.221529 n.a. n.a. 0.995602071988 -0.3188150 0.00957930320089 0.2609188 168.0098 /T 11.8756 175.1/ 0.7023 n.a. n.a. 1.8398762 117.57677 50.769423 2024-Nov-30 11:00 03 35 34.35 +20 11 24.7 273.209251 30.243638 n.a. n.a. 0.995600793416 -0.3187576 0.00958036239975 0.2671494 168.0070 /T 11.8783 175.1/ 0.6910 n.a. n.a. 1.9615955 116.37700 49.626394 2024-Nov-30 11:10 03 35 35.65 +20 11 16.0 274.661994 28.268837 n.a. n.a. 0.995599515074 -0.3187002 0.00958144538082 0.2727760 168.0045 /T 11.8808 175.0/ 0.6799 n.a. n.a. 2.0853562 115.24220 48.479294 2024-Nov-30 11:20 03 35 37.04 +20 11 07.0 276.094939 26.298351 n.a. n.a. 0.995598236963 -0.3186429 0.00958254969980 0.2777879 168.0023 /T 11.8829 174.9/ 0.6691 n.a. n.a. 2.2109373 114.16610 47.328476 2024-Nov-30 11:30 03 35 38.52 +20 10 57.9 277.512450 24.333360 n.a. n.a. 0.995596959082 -0.3185855 0.00958367287285 0.2821761 168.0006 /T 11.8846 174.8/ 0.6586 n.a. n.a. 2.3381137 113.14321 46.174259 2024-Nov-30 11:40 03 35 40.09 +20 10 48.7 278.918553 22.375014 n.a. n.a. 0.995595681431 -0.3185281 0.00958481238139 0.2859323 167.9992 /T 11.8860 174.7/ 0.6484 n.a. n.a. 2.4666562 112.16871 45.016931 2024-Nov-30 11:50 03 35 41.77 +20 10 39.4 280.316985 20.424450 n.a. n.a. 0.995594404010 -0.3184707 0.00958596567689 0.2890499 167.9981 /T 11.8870 174.7/ 0.6386 n.a. n.a. 2.5963327 111.23835 43.856753 2024-Nov-30 12:00 03 35 43.53 +20 10 30.0 281.711244 18.482796 n.a. n.a. 0.995593126819 -0.3184133 0.00958713018585 0.2915231 167.9974 /T 11.8877 174.6/ 0.6290 n.a. n.a. 2.7269078 110.34836 42.693960 2024-Nov-30 12:10 03 35 45.40 +20 10 20.6 283.104629 16.551187 n.a. n.a. 0.995591849859 -0.3183559 0.00958830331460 0.2933475 167.9971 /T 11.8880 174.5/ 0.6197 n.a. n.a. 2.8581445 109.49536 41.528770 2024-Nov-30 12:20 03 35 47.36 +20 10 11.1 284.500277 14.630771 n.a. n.a. 0.995590573129 -0.3182984 0.00958948245441 0.2945200 167.9972 /T 11.8879 174.4/ 0.6106 n.a. n.a. 2.9898037 108.67635 40.361380 2024-Nov-30 12:30 03 35 49.43 +20 10 01.6 285.901188 12.722716 n.a. n.a. 0.995589296629 -0.3182410 0.00959066498633 0.2950388 167.9977 /T 11.8874 174.3/ 0.6019 n.a. n.a. 3.1216454 107.88862 39.191973 2024-Nov-30 12:40 03 35 51.59 +20 09 52.0 287.310255 10.828222 n.a. n.a. 0.995588020359 -0.3181836 0.00959184828630 0.2949030 167.9985 /T 11.8866 174.3/ 0.5935 n.a. n.a. 3.2534289 107.12973 38.020714 2024-Nov-30 12:50 03 35 53.85 +20 09 42.5 288.730284 8.948526 n.a. n.a. 0.995586744320 -0.3181262 0.00959302973007 0.2941134 167.9997 /T 11.8853 174.2/ 0.5853 n.a. n.a. 3.3849136 106.39746 36.847759 2024-Nov-30 13:00 A 03 35 56.20 +20 09 33.1 290.164012 7.084910 n.a. n.a. 0.995585468511 -0.3180687 0.00959420669823 0.2926717 168.0013 /T 11.8837 174.1/ 0.5774 n.a. n.a. 3.5158592 105.68981 35.673248 2024-Nov-30 13:10 A 03 35 58.66 +20 09 23.7 291.614126 5.238710 n.a. n.a. 0.995584192933 -0.3180113 0.00959537658113 0.2905809 168.0033 /T 11.8817 174.0/ 0.5697 n.a. n.a. 3.6460262 105.00494 34.497313 2024-Nov-30 13:20 A 03 36 01.21 +20 09 14.3 293.083272 3.411319 n.a. n.a. 0.995582917585 -0.3179538 0.00959653678385 0.2878455 168.0057 /T 11.8794 174.0/ 0.5623 n.a. n.a. 3.7751769 104.34120 33.320074 2024-Nov-30 13:30 N 03 36 03.85 +20 09 05.1 294.574067 1.604201 n.a. n.a. 0.995581642467 -0.3178964 0.00959768473111 0.2844708 168.0084 /T 11.8767 173.9/ 0.5552 n.a. n.a. 3.9030751 103.69705 32.141644 2024-Nov-30 13:40 N 03 36 06.59 +20 08 56.0 296.089109 -0.181110 n.a. n.a. 0.995580367580 -0.3178389 0.00959881787210 0.2804636 168.0115 /T 11.8736 173.8/ 0.5483 n.a. n.a. 4.0294872 103.07108 30.962125 >..... Elevation Cut-off Requested .....< >..... Daylight 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 ***************************************************************************************************************************************************************************************************************************************************