API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Apr 10, 2025 Gaia Observatory -139479 http://sci.esa.int/gaia/ NOTE: Science observations 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 2025-Mar-27 08:50, predicts thereafter) Trajectory name Start Stop -------------------------------------------- ----------- ----------- ORB1_20250403_000001 2013-Dec-19 2025-Jun-30 ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Fri Apr 18 18:45:40 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: Gaia (spacecraft) (-139479) {source: gaia_merged} Center body name: Earth (399) {source: gaia_merged} Center-site name: SATINO Remote Observatory, Haute Provence ******************************************************************************* Start time : A.D. 2024-Oct-31 00:00:00.0000 UT Stop time : A.D. 2024-Nov-01 00:00:00.0000 UT Step-size : 10 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 5.7124, 43.9320269, .703985 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 5.7124, 4601.22659, 4403.14405 {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.250418.p250715 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-APR-18. PREDICTS-> 2025-JUL-14 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-Oct-31 00:00 01 32 34.72 +15 39 16.4 220.457986 56.220746 n.a. n.a. 1.003022430529 -0.4979009 0.01038137124437 0.0856634 168.1045 /T 11.7731 173.1/ 2.0256 n.a. n.a. 0.7961386 284.73140 40.608433 2024-Oct-31 00:10 01 32 34.20 +15 39 18.2 224.152124 55.004833 n.a. n.a. 1.003020433615 -0.4978801 0.01038174091335 0.0986311 168.0962 /T 11.7814 173.2/ 2.0016 n.a. n.a. 0.7439639 283.45926 46.569819 2024-Oct-31 00:20 01 32 33.72 +15 39 19.8 227.646936 53.707558 n.a. n.a. 1.003018436783 -0.4978593 0.01038216208603 0.1113416 168.0880 /T 11.7895 173.3/ 1.9779 n.a. n.a. 0.6877736 282.12409 52.214685 2024-Oct-31 00:30 01 32 33.27 +15 39 21.1 230.952828 52.338030 n.a. n.a. 1.003016440035 -0.4978386 0.01038263368123 0.1237703 168.0800 /T 11.7974 173.4/ 1.9544 n.a. n.a. 0.6276567 280.68570 57.524035 2024-Oct-31 00:40 01 32 32.87 +15 39 22.1 234.081847 50.904594 n.a. n.a. 1.003014443371 -0.4978178 0.01038315452119 0.1358935 168.0722 /T 11.8052 173.5/ 1.9312 n.a. n.a. 0.5637293 279.08365 62.494994 2024-Oct-31 00:50 01 32 32.50 +15 39 22.9 237.046875 49.414818 n.a. n.a. 1.003012446790 -0.4977970 0.01038372333386 0.1476880 168.0645 /T 11.8128 173.5/ 1.9082 n.a. n.a. 0.4961461 277.22068 67.135862 2024-Oct-31 01:00 01 32 32.19 +15 39 23.4 239.861017 47.875523 n.a. n.a. 1.003010450292 -0.4977762 0.01038433875538 0.1591313 168.0570 /T 11.8202 173.6/ 1.8856 n.a. n.a. 0.4251253 274.92771 71.460977 2024-Oct-31 01:10 01 32 31.92 +15 39 23.6 242.537181 46.292828 n.a. n.a. 1.003008453878 -0.4977554 0.01038499933281 0.1702014 168.0497 /T 11.8274 173.7/ 1.8632 n.a. n.a. 0.3510105 271.88057 75.485139 2024-Oct-31 01:20 01 32 31.70 +15 39 23.6 245.087794 44.672210 n.a. n.a. 1.003006457547 -0.4977345 0.01038570352693 0.1808773 168.0426 /T 11.8344 173.8/ 1.8411 n.a. n.a. 0.2744446 267.37119 79.215153 2024-Oct-31 01:30 01 32 31.54 +15 39 23.4 247.524636 43.018566 n.a. n.a. 1.003004461300 -0.4977137 0.01038644971532 0.1911385 168.0358 /T 11.8411 173.9/ 1.8193 n.a. n.a. 0.1969789 259.54188 82.627588 2024-Oct-31 01:40 01 32 31.43 +15 39 22.9 249.858743 41.336279 n.a. n.a. 1.003002465137 -0.4976929 0.01038723619542 0.2009656 168.0292 /T 11.8476 174.0/ 1.7979 n.a. n.a. 0.1239995 242.14376 85.569971 2024-Oct-31 01:50 01 32 31.39 +15 39 22.2 252.100376 39.629276 n.a. n.a. 1.003000469058 -0.4976720 0.01038806118800 0.2103397 168.0228 /T 11.8539 174.0/ 1.7767 n.a. n.a. 0.0821253 195.60486 87.193172 2024-Oct-31 02:00 01 32 31.41 +15 39 21.3 254.259024 37.901091 n.a. n.a. 1.002998473062 -0.4976511 0.01038892284050 0.2192431 168.0167 /T 11.8600 174.1/ 1.7559 n.a. n.a. 0.1206817 145.27797 86.045725 2024-Oct-31 02:10 01 32 31.49 +15 39 20.2 256.343435 36.154908 n.a. n.a. 1.002996477150 -0.4976303 0.01038981923074 0.2276589 168.0109 /T 11.8657 174.2/ 1.7354 n.a. n.a. 0.2010819 125.99568 83.670148 2024-Oct-31 02:20 01 32 31.63 +15 39 18.9 258.361656 34.393616 n.a. n.a. 1.002994481321 -0.4976094 0.01039074837060 0.2355711 168.0053 /T 11.8713 174.3/ 1.7152 n.a. n.a. 0.2930536 117.65735 81.119409 2024-Oct-31 02:30 01 32 31.85 +15 39 17.5 260.321087 32.619844 n.a. n.a. 1.002992485577 -0.4975885 0.01039170820992 0.2429648 168.0000 /T 11.8765 174.3/ 1.6953 n.a. n.a. 0.3903097 113.03205 78.591580 2024-Oct-31 02:40 01 32 32.13 +15 39 15.9 262.228536 30.836003 n.a. n.a. 1.002990489916 -0.4975676 0.01039269664049 0.2498259 167.9950 /T 11.8814 174.4/ 1.6758 n.a. n.a. 0.4910734 110.02761 76.129284 2024-Oct-31 02:50 01 32 32.48 +15 39 14.2 264.090276 29.044315 n.a. n.a. 1.002988494340 -0.4975467 0.01039371150012 0.2561415 167.9902 /T 11.8861 174.5/ 1.6566 n.a. n.a. 0.5945872 107.86641 73.741252 2024-Oct-31 03:00 01 32 32.91 +15 39 12.3 265.912098 27.246841 n.a. n.a. 1.002986498847 -0.4975257 0.01039475057688 0.2618998 167.9858 /T 11.8905 174.6/ 1.6377 n.a. n.a. 0.7004098 106.19917 71.426472 2024-Oct-31 03:10 01 32 33.42 +15 39 10.3 267.699361 25.445512 n.a. n.a. 1.002984503438 -0.4975048 0.01039581161328 0.2670900 167.9817 /T 11.8945 174.6/ 1.6192 n.a. n.a. 0.8082215 104.84680 69.180778 2024-Oct-31 03:20 01 32 34.00 +15 39 08.1 269.457043 23.642143 n.a. n.a. 1.002982508114 -0.4974839 0.01039689231079 0.2717023 167.9779 /T 11.8983 174.7/ 1.6010 n.a. n.a. 0.9177553 103.70820 66.999068 2024-Oct-31 03:30 01 32 34.65 +15 39 05.9 271.189784 21.838462 n.a. n.a. 1.002980512873 -0.4974629 0.01039799033409 0.2757282 167.9744 /T 11.9018 174.8/ 1.5831 n.a. n.a. 1.0287700 102.72198 64.876141 2024-Oct-31 03:40 01 32 35.39 +15 39 03.6 272.901924 20.036119 n.a. n.a. 1.002978517716 -0.4974419 0.01039910331576 0.2791601 167.9712 /T 11.9049 174.8/ 1.5656 n.a. n.a. 1.1410367 101.84866 62.807028 2024-Oct-31 03:50 01 32 36.20 +15 39 01.3 274.597542 18.236708 n.a. n.a. 1.002976522644 -0.4974210 0.01040022886066 0.2819919 167.9683 /T 11.9077 174.9/ 1.5484 n.a. n.a. 1.2543339 101.06166 60.787120 2024-Oct-31 04:00 01 32 37.09 +15 38 58.9 276.280489 16.441779 n.a. n.a. 1.002974527656 -0.4974000 0.01040136455069 0.2842182 167.9657 /T 11.9102 175.0/ 1.5315 n.a. n.a. 1.3684432 100.34239 58.812202 2024-Oct-31 04:10 01 32 38.06 +15 38 56.4 277.954417 14.652853 n.a. n.a. 1.002972532751 -0.4973790 0.01040250794931 0.2858352 167.9635 /T 11.9124 175.0/ 1.5150 n.a. n.a. 1.4831485 99.677421 56.878448 2024-Oct-31 04:20 01 32 39.12 +15 38 53.9 279.622804 12.871429 n.a. n.a. 1.002970537931 -0.4973580 0.01040365660629 0.2868399 167.9616 /T 11.9143 175.1/ 1.4988 n.a. n.a. 1.5982350 99.056777 54.982398 2024-Oct-31 04:30 01 32 40.25 +15 38 51.4 281.288982 11.099001 n.a. n.a. 1.002968543196 -0.4973370 0.01040480806234 0.2872308 167.9600 /T 11.9159 175.2/ 1.4829 n.a. n.a. 1.7134889 98.472883 53.120930 2024-Oct-31 04:40 A 01 32 41.46 +15 38 48.9 282.956151 9.337064 n.a. n.a. 1.002966548544 -0.4973160 0.01040595985393 0.2870072 167.9588 /T 11.9171 175.2/ 1.4674 n.a. n.a. 1.8286970 97.919843 51.291223 2024-Oct-31 04:50 A 01 32 42.76 +15 38 46.4 284.627404 7.587128 n.a. n.a. 1.002964553977 -0.4972949 0.01040710951777 0.2861700 167.9578 /T 11.9180 175.3/ 1.4521 n.a. n.a. 1.9436474 97.393004 49.490735 2024-Oct-31 05:00 A 01 32 44.13 +15 38 43.9 286.305741 5.850722 n.a. n.a. 1.002962559495 -0.4972739 0.01040825459578 0.2847209 167.9572 /T 11.9186 175.3/ 1.4372 n.a. n.a. 2.0581292 96.888609 47.717164 2024-Oct-31 05:10 Nm 01 32 45.59 +15 38 41.5 287.994080 4.129405 n.a. n.a. 1.002960565096 -0.4972528 0.01040939263948 0.2826629 167.9569 /T 11.9188 175.4/ 1.4227 n.a. n.a. 2.1719329 96.403599 45.968430 2024-Oct-31 05:20 Nm 01 32 47.12 +15 38 39.1 289.695270 2.424775 n.a. n.a. 1.002958570783 -0.4972318 0.01041052121487 0.2800003 167.9570 /T 11.9188 175.5/ 1.4084 n.a. n.a. 2.2848510 95.935432 44.242649 2024-Oct-31 05:30 Nm 01 32 48.73 +15 38 36.8 291.412102 0.738477 n.a. n.a. 1.002956576553 -0.4972107 0.01041163790693 0.2767383 167.9573 /T 11.9184 175.5/ 1.3944 n.a. n.a. 2.3966776 95.481977 42.538109 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2024-Oct-31 16:40 C 01 35 31.60 +15 44 41.2 79.735406 12.329632 n.a. n.a. 1.002823157628 -0.4957760 0.01039378181495 -0.3563532 168.1885 /T 11.6898 177.3/ 0.7568 n.a. n.a. 2.0278899 53.865803 -54.43462 2024-Oct-31 16:50 C 01 35 32.70 +15 44 53.2 81.399745 14.109493 n.a. n.a. 1.002821169235 -0.4957542 0.01039235395345 -0.3555473 168.1864 /T 11.6919 177.2/ 0.7462 n.a. n.a. 1.9344601 51.875715 -55.64648 2024-Oct-31 17:00 N 01 35 33.71 +15 45 05.1 83.068393 15.897411 n.a. n.a. 1.002819180929 -0.4957325 0.01039093055349 -0.3541288 168.1840 /T 11.6943 177.2/ 0.7355 n.a. n.a. 1.8429649 49.726513 -56.82691 2024-Oct-31 17:10 N 01 35 34.64 +15 45 17.0 84.744771 17.691897 n.a. n.a. 1.002817192710 -0.4957107 0.01038951406727 -0.3521002 168.1812 /T 11.6971 177.2/ 0.7247 n.a. n.a. 1.7538113 47.402402 -57.97055 2024-Oct-31 17:20 N 01 35 35.50 +15 45 28.9 86.432464 19.491447 n.a. n.a. 1.002815204579 -0.4956889 0.01038810693472 -0.3494653 168.1781 /T 11.7001 177.1/ 0.7138 n.a. n.a. 1.6674281 44.886773 -59.07111 2024-Oct-31 17:30 N 01 35 36.27 +15 45 40.7 88.135245 21.294532 n.a. n.a. 1.002813216535 -0.4956671 0.01038671157884 -0.3462287 168.1748 /T 11.7035 177.1/ 0.7028 n.a. n.a. 1.5842668 42.162637 -60.12124 2024-Oct-31 17:40 A 01 35 36.97 +15 45 52.4 89.857109 23.099582 n.a. n.a. 1.002811228578 -0.4956453 0.01038533040104 -0.3423965 168.1711 /T 11.7072 177.1/ 0.6918 n.a. n.a. 1.5047999 39.213305 -61.11244 2024-Oct-31 17:50 A 01 35 37.59 +15 46 04.0 91.602299 24.904978 n.a. n.a. 1.002809240709 -0.4956235 0.01038396577656 -0.3379757 168.1670 /T 11.7112 177.0/ 0.6807 n.a. n.a. 1.4295174 36.023401 -62.03492 2024-Oct-31 18:00 A 01 35 38.13 +15 46 15.5 93.375346 26.709030 n.a. n.a. 1.002807252927 -0.4956017 0.01038262004985 -0.3329746 168.1627 /T 11.7155 177.0/ 0.6695 n.a. n.a. 1.3589206 32.580255 -62.87755 2024-Oct-31 18:10 01 35 38.60 +15 46 26.9 95.181107 28.509966 n.a. n.a. 1.002805265233 -0.4955798 0.01038129553006 -0.3274025 168.1581 /T 11.7200 176.9/ 0.6582 n.a. n.a. 1.2935110 28.875724 -63.62785 2024-Oct-31 18:20 01 35 39.00 +15 46 38.2 97.024807 30.305909 n.a. n.a. 1.002803277627 -0.4955580 0.01037999448667 -0.3212699 168.1532 /T 11.7249 176.9/ 0.6470 n.a. n.a. 1.2337740 24.908355 -64.27214 2024-Oct-31 18:30 01 35 39.32 +15 46 49.3 98.912089 32.094857 n.a. n.a. 1.002801290108 -0.4955361 0.01037871914493 -0.3145884 168.1480 /T 11.7301 176.8/ 0.6356 n.a. n.a. 1.1801566 20.685744 -64.79570 2024-Oct-31 18:40 01 35 39.57 +15 47 00.3 100.849064 33.874659 n.a. n.a. 1.002799302677 -0.4955143 0.01037747168178 -0.3073705 168.1425 /T 11.7355 176.7/ 0.6243 n.a. n.a. 1.1330393 16.226713 -65.18328 2024-Oct-31 18:50 01 35 39.76 +15 47 11.1 102.842361 35.642987 n.a. n.a. 1.002797315334 -0.4954924 0.01037625422142 -0.2996298 168.1368 /T 11.7412 176.7/ 0.6129 n.a. n.a. 1.0927036 11.562821 -65.41956 2024-Oct-31 19:00 01 35 39.88 +15 47 21.7 104.899194 37.397304 n.a. n.a. 1.002795328079 -0.4954705 0.01037506883132 -0.2913811 168.1308 /T 11.7472 176.6/ 0.6015 n.a. n.a. 1.0592983 6.7385833 -65.48993 2024-Oct-31 19:10 01 35 39.93 +15 47 32.1 107.027407 39.134831 n.a. n.a. 1.002793340911 -0.4954486 0.01037391751819 -0.2826400 168.1245 /T 11.7534 176.6/ 0.5901 n.a. n.a. 1.0328111 1.8099605 -65.38115 2024-Oct-31 19:20 01 35 39.92 +15 47 42.3 109.235539 40.852503 n.a. n.a. 1.002791353832 -0.4954267 0.01037280222404 -0.2734231 168.1180 /T 11.7598 176.5/ 0.5786 n.a. n.a. 1.0130499 356.84095 -65.08203 2024-Oct-31 19:30 01 35 39.85 +15 47 52.3 111.532872 42.546931 n.a. n.a. 1.002789366840 -0.4954048 0.01037172482243 -0.2637479 168.1113 /T 11.7665 176.4/ 0.5672 n.a. n.a. 0.9996396 351.89870 -64.58381 2024-Oct-31 19:40 01 35 39.72 +15 48 02.1 113.929464 44.214342 n.a. n.a. 1.002787379937 -0.4953829 0.01037068711485 -0.2536329 168.1043 /T 11.7735 176.4/ 0.5558 n.a. n.a. 0.9920357 347.04797 -63.88025 2024-Oct-31 19:50 01 35 39.54 +15 48 11.7 116.436174 45.850532 n.a. n.a. 1.002785393121 -0.4953609 0.01036969082712 -0.2430972 168.0971 /T 11.7806 176.3/ 0.5444 n.a. n.a. 0.9895546 342.34608 -62.96741 2024-Oct-31 20:00 01 35 39.31 +15 48 21.0 119.064639 47.450799 n.a. n.a. 1.002783406393 -0.4953390 0.01036873760611 -0.2321611 168.0897 /T 11.7879 176.2/ 0.5330 n.a. n.a. 0.9914126 337.83929 -61.84300 2024-Oct-31 20:10 01 35 39.02 +15 48 30.0 121.827215 49.009885 n.a. n.a. 1.002781419754 -0.4953170 0.01036782901643 -0.2208453 168.0821 /T 11.7955 176.1/ 0.5217 n.a. n.a. 0.9967701 333.56093 -60.50567 2024-Oct-31 20:20 01 35 38.69 +15 48 38.8 124.736840 50.521902 n.a. n.a. 1.002779433203 -0.4952951 0.01036696653748 -0.2091716 168.0743 /T 11.8032 176.0/ 0.5104 n.a. n.a. 1.0047722 329.53147 -58.95408 2024-Oct-31 20:30 01 35 38.32 +15 48 47.3 127.806796 51.980279 n.a. n.a. 1.002777446740 -0.4952731 0.01036615156043 -0.1971623 168.0664 /T 11.8110 176.0/ 0.4991 n.a. n.a. 1.0145825 325.75981 -57.18612 2024-Oct-31 20:40 01 35 37.90 +15 48 55.6 131.050344 53.377699 n.a. n.a. 1.002775460365 -0.4952511 0.01036538538560 -0.1848403 168.0583 /T 11.8191 175.9/ 0.4879 n.a. n.a. 1.0254084 322.24543 -55.19811 2024-Oct-31 20:50 01 35 37.45 +15 49 03.5 134.480187 54.706064 n.a. n.a. 1.002773474078 -0.4952291 0.01036466921985 -0.1722293 168.0500 /T 11.8273 175.8/ 0.4768 n.a. n.a. 1.0365165 318.98073 -52.98422 2024-Oct-31 21:00 01 35 36.96 +15 49 11.2 138.107721 55.956491 n.a. n.a. 1.002771487880 -0.4952071 0.01036400417424 -0.1593533 168.0416 /T 11.8356 175.7/ 0.4657 n.a. n.a. 1.0472413 315.95323 -50.53596 2024-Oct-31 21:10 01 35 36.44 +15 49 18.6 141.942065 57.119344 n.a. n.a. 1.002769501770 -0.4951851 0.01036339126183 -0.1462372 168.0331 /T 11.8440 175.6/ 0.4548 n.a. n.a. 1.0569878 313.14742 -47.84190 2024-Oct-31 21:20 01 35 35.89 +15 49 25.6 145.988848 58.184341 n.a. n.a. 1.002767515748 -0.4951631 0.01036283139571 -0.1329061 168.0245 /T 11.8525 175.5/ 0.4439 n.a. n.a. 1.0652298 310.54626 -44.88745 2024-Oct-31 21:30 01 35 35.32 +15 49 32.4 150.248813 59.140734 n.a. n.a. 1.002765529815 -0.4951410 0.01036232538718 -0.1193854 168.0158 /T 11.8611 175.4/ 0.4331 n.a. n.a. 1.0715064 308.13215 -41.65495 2024-Oct-31 21:40 01 35 34.72 +15 49 38.8 154.716339 59.977601 n.a. n.a. 1.002763543971 -0.4951190 0.01036187394418 -0.1057013 168.0070 /T 11.8698 175.4/ 0.4224 n.a. n.a. 1.0754168 305.88772 -38.12395 2024-Oct-31 21:50 01 35 34.11 +15 49 45.0 159.378082 60.684236 n.a. n.a. 1.002761558215 -0.4950969 0.01036147766988 -0.0918800 167.9982 /T 11.8786 175.3/ 0.4118 n.a. n.a. 1.0766149 303.79620 -34.27193 2024-Oct-31 22:00 01 35 33.48 +15 49 50.8 164.211999 61.250644 n.a. n.a. 1.002759572547 -0.4950749 0.01036113706147 -0.0779480 167.9893 /T 11.8874 175.2/ 0.4014 n.a. n.a. 1.0748039 301.84173 -30.07567 2024-Oct-31 22:10 01 35 32.84 +15 49 56.3 169.187061 61.668108 n.a. n.a. 1.002757586969 -0.4950528 0.01036085250925 -0.0639321 167.9804 /T 11.8963 175.1/ 0.3910 n.a. n.a. 1.0697308 300.00939 -25.51328 2024-Oct-31 22:20 01 35 32.20 +15 50 01.5 174.263938 61.929760 n.a. n.a. 1.002755601478 -0.4950307 0.01036062429577 -0.0498592 167.9714 /T 11.9052 175.0/ 0.3808 n.a. n.a. 1.0611823 298.28524 -20.56741 2024-Oct-31 22:30 01 35 31.55 +15 50 06.3 179.396761 62.031090 n.a. n.a. 1.002753616077 -0.4950086 0.01036045259539 -0.0357564 167.9624 /T 11.9140 174.9/ 0.3707 n.a. n.a. 1.0489804 296.65618 -15.22948 2024-Oct-31 22:40 t 01 35 30.90 +15 50 10.9 184.535873 61.970312 n.a. n.a. 1.002751630764 -0.4949865 0.01036033747383 -0.0216507 167.9535 /T 11.9229 174.8/ 0.3608 n.a. n.a. 1.0329789 295.10990 -9.504845 2024-Oct-31 22:50 01 35 30.25 +15 50 15.1 189.631180 61.748510 n.a. n.a. 1.002749645540 -0.4949644 0.01036027888811 -0.0075693 167.9445 /T 11.9318 174.7/ 0.3510 n.a. n.a. 1.0130602 293.63459 -3.418299 2024-Oct-31 23:00 01 35 29.61 +15 50 19.0 194.635585 61.369547 n.a. n.a. 1.002747660405 -0.4949423 0.01036027668660 0.0064607 167.9356 /T 11.9406 174.6/ 0.3414 n.a. n.a. 0.9891332 292.21879 2.9815939 2024-Oct-31 23:10 01 35 28.99 +15 50 22.6 199.507925 60.839755 n.a. n.a. 1.002745675358 -0.4949201 0.01036033060935 0.0204125 167.9267 /T 11.9494 174.5/ 0.3320 n.a. n.a. 0.9611304 290.85107 9.6209998 2024-Oct-31 23:20 01 35 28.37 +15 50 25.8 204.215004 60.167449 n.a. n.a. 1.002743690401 -0.4948980 0.01036044028855 0.0342592 167.9180 /T 11.9581 174.4/ 0.3227 n.a. n.a. 0.9290068 289.51966 16.403879 2024-Oct-31 23:30 01 35 27.77 +15 50 28.7 208.732537 59.362365 n.a. n.a. 1.002741705532 -0.4948758 0.01036060524932 0.0479742 167.9092 /T 11.9667 174.3/ 0.3135 n.a. n.a. 0.8927379 288.21197 23.220117 2024-Oct-31 23:40 01 35 27.20 +15 50 31.4 213.045088 58.435084 n.a. n.a. 1.002739720753 -0.4948537 0.01036082491061 0.0615312 167.9006 /T 11.9752 174.2/ 0.3046 n.a. n.a. 0.8523193 286.91395 29.957332 2024-Oct-31 23:50 01 35 26.64 +15 50 33.7 217.145234 57.396523 n.a. n.a. 1.002737736062 -0.4948315 0.01036109858637 0.0749042 167.8921 /T 11.9837 174.1/ 0.2958 n.a. n.a. 0.8077656 285.60907 36.513333 2024-Nov-01 00:00 01 35 26.12 +15 50 35.7 221.032273 56.257504 n.a. n.a. 1.002735751460 -0.4948093 0.01036142548687 0.0880675 167.8837 /T 11.9920 174.0/ 0.2872 n.a. n.a. 0.7591106 284.27692 42.805854 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ***************************************************************************************************************************************************************************************************************************************************