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 Wed Apr 23 17:34:31 2025 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-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 : 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.250423.p250719 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-APR-23. PREDICTS-> 2025-JUL-18 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 40.80 +15 40 04.5 207.363639 62.609510 n.a. n.a. 1.003022430525 -0.4979009 0.01037895892555 0.0391952 168.1277 /T 11.7503 173.0/ 2.0496 n.a. n.a. 1.0741720 286.61499 16.212565 2024-Oct-31 00:10 01 32 40.10 +15 40 07.4 212.124450 61.668474 n.a. n.a. 1.003020433610 -0.4978801 0.01037914503009 0.0535795 168.1186 /T 11.7593 173.1/ 2.0248 n.a. n.a. 1.0365608 285.36394 22.387650 2024-Oct-31 00:20 01 32 39.42 +15 40 10.0 216.609419 60.597677 n.a. n.a. 1.003018436779 -0.4978593 0.01037938849397 0.0677929 168.1096 /T 11.7682 173.2/ 2.0002 n.a. n.a. 0.9945290 284.11335 28.512049 2024-Oct-31 00:30 01 32 38.77 +15 40 12.2 220.817821 59.411249 n.a. n.a. 1.003016440030 -0.4978386 0.01037968857677 0.0818080 168.1007 /T 11.7770 173.3/ 1.9759 n.a. n.a. 0.9481069 282.84781 34.513537 2024-Oct-31 00:40 01 32 38.14 +15 40 14.2 224.757359 58.122658 n.a. n.a. 1.003014443365 -0.4978178 0.01038004442933 0.0955980 168.0919 /T 11.7856 173.4/ 1.9518 n.a. n.a. 0.8973438 281.54851 40.330739 2024-Oct-31 00:50 01 32 37.55 +15 40 15.8 228.441507 56.744393 n.a. n.a. 1.003012446784 -0.4977970 0.01038045509549 0.1091364 168.0833 /T 11.7942 173.4/ 1.9279 n.a. n.a. 0.8423100 280.19147 45.916563 2024-Oct-31 01:00 01 32 36.99 +15 40 17.1 231.887260 55.287799 n.a. n.a. 1.003010450286 -0.4977762 0.01038091951391 0.1223973 168.0749 /T 11.8025 173.5/ 1.9044 n.a. n.a. 0.7830988 278.74462 51.239164 2024-Oct-31 01:10 01 32 36.48 +15 40 18.2 235.113384 53.763030 n.a. n.a. 1.003008453872 -0.4977554 0.01038143652024 0.1353552 168.0666 /T 11.8107 173.6/ 1.8811 n.a. n.a. 0.7198312 277.16307 56.280789 2024-Oct-31 01:20 01 32 36.01 +15 40 18.9 238.139149 52.179086 n.a. n.a. 1.003006457541 -0.4977345 0.01038200484933 0.1479853 168.0585 /T 11.8188 173.7/ 1.8580 n.a. n.a. 0.6526649 275.38087 61.035170 2024-Oct-31 01:30 01 32 35.58 +15 40 19.4 240.983473 50.543889 n.a. n.a. 1.003004461294 -0.4977137 0.01038262313781 0.1602634 168.0505 /T 11.8266 173.8/ 1.8353 n.a. n.a. 0.5818113 273.29568 65.504110 2024-Oct-31 01:40 01 32 35.20 +15 40 19.6 243.664395 48.864390 n.a. n.a. 1.003002465131 -0.4976929 0.01038328992669 0.1721661 168.0428 /T 11.8342 173.9/ 1.8128 n.a. n.a. 0.5075711 270.73851 69.693549 2024-Oct-31 01:50 01 32 34.88 +15 40 19.5 246.198769 47.146673 n.a. n.a. 1.003000469051 -0.4976720 0.01038400366428 0.1836706 168.0353 /T 11.8416 173.9/ 1.7907 n.a. n.a. 0.4304119 267.40857 73.608702 2024-Oct-31 02:00 01 32 34.61 +15 40 19.2 248.602134 45.396071 n.a. n.a. 1.002998473055 -0.4976511 0.01038476270919 0.1947550 168.0280 /T 11.8488 174.0/ 1.7688 n.a. n.a. 0.3511615 262.71813 77.246223 2024-Oct-31 02:10 01 32 34.40 +15 40 18.6 250.888681 43.617263 n.a. n.a. 1.002996477143 -0.4976303 0.01038556533358 0.2053981 168.0210 /T 11.8558 174.1/ 1.7473 n.a. n.a. 0.2715575 255.37663 80.576050 2024-Oct-31 02:20 01 32 34.25 +15 40 17.8 253.071296 41.814367 n.a. n.a. 1.002994481314 -0.4976094 0.01038640972653 0.2155796 168.0142 /T 11.8625 174.2/ 1.7261 n.a. n.a. 0.1961182 242.16924 83.484102 2024-Oct-31 02:30 01 32 34.16 +15 40 16.8 255.161638 39.991025 n.a. n.a. 1.002992485570 -0.4975885 0.01038729399758 0.2252801 168.0077 /T 11.8689 174.3/ 1.7052 n.a. n.a. 0.1391374 215.36025 85.565653 2024-Oct-31 02:40 01 32 34.14 +15 40 15.5 257.170239 38.150468 n.a. n.a. 1.002990489909 -0.4975676 0.01038821618044 0.2344813 168.0014 /T 11.8751 174.3/ 1.6846 n.a. n.a. 0.1351749 173.28966 85.859580 2024-Oct-31 02:50 01 32 34.18 +15 40 14.1 259.106605 36.295585 n.a. n.a. 1.002988494332 -0.4975467 0.01038917423679 0.2431656 167.9955 /T 11.8810 174.4/ 1.6644 n.a. n.a. 0.1922811 143.14526 84.328937 2024-Oct-31 03:00 01 32 34.30 +15 40 12.5 260.979332 34.428970 n.a. n.a. 1.002986498839 -0.4975257 0.01039016606035 0.2513166 167.9898 /T 11.8866 174.5/ 1.6445 n.a. n.a. 0.2777490 128.32895 82.097646 2024-Oct-31 03:10 01 32 34.48 +15 40 10.7 262.796200 32.552975 n.a. n.a. 1.002984503431 -0.4975048 0.01039118948083 0.2589189 167.9844 /T 11.8920 174.6/ 1.6249 n.a. n.a. 0.3746663 120.36703 79.698562 2024-Oct-31 03:20 01 32 34.74 +15 40 08.7 264.564275 30.669742 n.a. n.a. 1.002982508106 -0.4974839 0.01039224226832 0.2659581 167.9793 /T 11.8970 174.6/ 1.6056 n.a. n.a. 0.4776310 115.45506 77.287128 2024-Oct-31 03:30 01 32 35.08 +15 40 06.6 266.289991 28.781242 n.a. n.a. 1.002980512865 -0.4974629 0.01039332213746 0.2724211 167.9745 /T 11.9017 174.7/ 1.5867 n.a. n.a. 0.5845946 112.09191 74.912137 2024-Oct-31 03:40 01 32 35.50 +15 40 04.3 267.979232 26.889301 n.a. n.a. 1.002978517709 -0.4974419 0.01039442675201 0.2782955 167.9700 /T 11.9061 174.8/ 1.5682 n.a. n.a. 0.6945679 109.60979 72.589626 2024-Oct-31 03:50 01 32 35.99 +15 40 01.9 269.637401 24.995629 n.a. n.a. 1.002976522636 -0.4974210 0.01039555372923 0.2835705 167.9658 /T 11.9102 174.8/ 1.5500 n.a. n.a. 0.8069605 107.67398 70.323838 2024-Oct-31 04:00 01 32 36.56 +15 39 59.4 271.269486 23.101840 n.a. n.a. 1.002974527648 -0.4974000 0.01039670064463 0.2882361 167.9620 /T 11.9140 174.9/ 1.5321 n.a. n.a. 0.9213552 106.09994 68.114304 2024-Oct-31 04:10 01 32 37.21 +15 39 56.8 272.880111 21.209471 n.a. n.a. 1.002972532744 -0.4973790 0.01039786503656 0.2922838 167.9585 /T 11.9175 175.0/ 1.5146 n.a. n.a. 1.0374186 104.77802 65.958586 2024-Oct-31 04:20 01 32 37.95 +15 39 54.2 274.473589 19.320000 n.a. n.a. 1.002970537924 -0.4973580 0.01039904441098 0.2957060 167.9553 /T 11.9206 175.0/ 1.4974 n.a. n.a. 1.1548607 103.63910 63.853471 2024-Oct-31 04:30 01 32 38.77 +15 39 51.4 276.053967 17.434861 n.a. n.a. 1.002968543188 -0.4973370 0.01040023624626 0.2984964 167.9525 /T 11.9234 175.1/ 1.4805 n.a. n.a. 1.2734159 102.63750 61.795512 2024-Oct-31 04:40 01 32 39.67 +15 39 48.6 277.625062 15.555457 n.a. n.a. 1.002966548537 -0.4973160 0.01040143799812 0.3006501 167.9500 /T 11.9258 175.2/ 1.4640 n.a. n.a. 1.3928327 101.74176 59.781288 2024-Oct-31 04:50 01 32 40.66 +15 39 45.8 279.190495 13.683176 n.a. n.a. 1.002964553970 -0.4972949 0.01040264710428 0.3021631 167.9478 /T 11.9280 175.2/ 1.4479 n.a. n.a. 1.5128686 100.92951 57.807531 2024-Oct-31 05:00 01 32 41.73 +15 39 42.9 280.753726 11.819398 n.a. n.a. 1.002962559487 -0.4972739 0.01040386098966 0.3030329 167.9460 /T 11.9297 175.3/ 1.4321 n.a. n.a. 1.6332863 100.18440 55.871176 2024-Oct-31 05:10 01 32 42.88 +15 39 40.0 282.318075 9.965507 n.a. n.a. 1.002960565089 -0.4972528 0.01040507707105 0.3032580 167.9445 /T 11.9312 175.4/ 1.4166 n.a. n.a. 1.7538530 99.494157 53.969384 2024-Oct-31 05:20 A 01 32 44.12 +15 39 37.2 283.886750 8.122905 n.a. n.a. 1.002958570776 -0.4972318 0.01040629276221 0.3028384 167.9434 /T 11.9323 175.4/ 1.4014 n.a. n.a. 1.8743386 98.849376 52.099540 2024-Oct-31 05:30 A 01 32 45.45 +15 39 34.3 285.462863 6.293015 n.a. n.a. 1.002956576546 -0.4972107 0.01040750547874 0.3017750 167.9426 /T 11.9331 175.5/ 1.3866 n.a. n.a. 1.9945159 98.242722 50.259246 2024-Oct-31 05:40 Am 01 32 46.86 +15 39 31.5 287.049453 4.477294 n.a. n.a. 1.002954582402 -0.4971896 0.01040871264301 0.3000702 167.9421 /T 11.9335 175.5/ 1.3721 n.a. n.a. 2.1141598 97.668370 48.446307 2024-Oct-31 05:50 Nm 01 32 48.35 +15 39 28.7 288.649500 2.677245 n.a. n.a. 1.002952588342 -0.4971685 0.01040991168907 0.2977276 167.9420 /T 11.9336 175.6/ 1.3579 n.a. n.a. 2.2330479 97.121621 46.658713 2024-Oct-31 06:00 Nm 01 32 49.93 +15 39 26.0 290.265935 0.894417 n.a. n.a. 1.002950594366 -0.4971474 0.01041110006750 0.2947517 167.9422 /T 11.9334 175.6/ 1.3441 n.a. n.a. 2.3509602 96.598635 44.894629 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2024-Oct-31 17:20 C 01 35 38.47 +15 45 34.3 79.520972 12.298672 n.a. n.a. 1.002815204587 -0.4956889 0.01039325223327 -0.3721170 168.1899 /T 11.6884 177.2/ 0.7200 n.a. n.a. 2.0195239 52.400657 -55.71132 2024-Oct-31 17:30 C 01 35 39.53 +15 45 46.7 81.081317 14.165656 n.a. n.a. 1.002813216543 -0.4956671 0.01039176157648 -0.3710913 168.1877 /T 11.6906 177.1/ 0.7096 n.a. n.a. 1.9232428 50.234968 -56.93364 2024-Oct-31 17:40 N 01 35 40.52 +15 45 59.0 82.644530 16.040877 n.a. n.a. 1.002811228586 -0.4956453 0.01039027632265 -0.3694232 168.1851 /T 11.6932 177.1/ 0.6991 n.a. n.a. 1.8293340 47.887712 -58.11960 2024-Oct-31 17:50 N 01 35 41.41 +15 46 11.2 84.214094 17.922961 n.a. n.a. 1.002809240717 -0.4956235 0.01038879904267 -0.3671157 168.1822 /T 11.6961 177.1/ 0.6886 n.a. n.a. 1.7382700 45.340713 -59.26271 2024-Oct-31 18:00 N 01 35 42.23 +15 46 23.4 85.793665 19.810527 n.a. n.a. 1.002807252935 -0.4956017 0.01038733229326 -0.3641730 168.1790 /T 11.6993 177.0/ 0.6779 n.a. n.a. 1.6505524 42.575171 -60.35534 2024-Oct-31 18:10 N 01 35 42.96 +15 46 35.5 87.387099 21.702173 n.a. n.a. 1.002805265241 -0.4955798 0.01038587861199 -0.3606003 168.1754 /T 11.7029 177.0/ 0.6672 n.a. n.a. 1.5667110 39.572380 -61.38860 2024-Oct-31 18:20 A 01 35 43.61 +15 46 47.6 88.998491 23.596467 n.a. n.a. 1.002803277634 -0.4955580 0.01038444051252 -0.3564043 168.1715 /T 11.7068 176.9/ 0.6564 n.a. n.a. 1.4873015 36.314812 -62.35219 2024-Oct-31 18:30 A 01 35 44.18 +15 46 59.5 90.632213 25.491928 n.a. n.a. 1.002801290115 -0.4955361 0.01038302047963 -0.3515928 168.1673 /T 11.7109 176.9/ 0.6455 n.a. n.a. 1.4128988 32.787684 -63.23434 2024-Oct-31 18:40 A 01 35 44.67 +15 47 11.3 92.292958 27.387014 n.a. n.a. 1.002799302684 -0.4955143 0.01038162096458 -0.3461747 168.1627 /T 11.7155 176.8/ 0.6345 n.a. n.a. 1.3440853 28.981003 -64.02182 2024-Oct-31 18:50 01 35 45.08 +15 47 23.0 93.985796 29.280104 n.a. n.a. 1.002797315341 -0.4954924 0.01038024438023 -0.3401602 168.1579 /T 11.7203 176.8/ 0.6235 n.a. n.a. 1.2814327 24.892104 -64.69999 2024-Oct-31 19:00 01 35 45.41 +15 47 34.6 95.716228 31.169476 n.a. n.a. 1.002795328085 -0.4954705 0.01037889309654 -0.3335605 168.1527 /T 11.7254 176.7/ 0.6125 n.a. n.a. 1.2254760 20.528423 -65.25317 2024-Oct-31 19:10 01 35 45.67 +15 47 46.0 97.490252 33.053288 n.a. n.a. 1.002793340918 -0.4954486 0.01037756943587 -0.3263881 168.1473 /T 11.7308 176.6/ 0.6014 n.a. n.a. 1.1766794 15.910137 -65.66505 2024-Oct-31 19:20 01 35 45.86 +15 47 57.2 99.314438 34.929548 n.a. n.a. 1.002791353838 -0.4954267 0.01037627566852 -0.3186565 168.1415 /T 11.7365 176.6/ 0.5902 n.a. n.a. 1.1353969 11.071997 -65.91937 2024-Oct-31 19:30 01 35 45.97 +15 48 08.3 101.196008 36.796086 n.a. n.a. 1.002789366846 -0.4954048 0.01037501400837 -0.3103804 168.1355 /T 11.7425 176.5/ 0.5791 n.a. n.a. 1.1018301 6.0636255 -66.00079 2024-Oct-31 19:40 01 35 46.02 +15 48 19.1 103.142928 38.650518 n.a. n.a. 1.002787379942 -0.4953829 0.01037378660853 -0.3015753 168.1292 /T 11.7488 176.4/ 0.5679 n.a. n.a. 1.0759926 0.9476742 -65.89570 2024-Oct-31 19:50 01 35 46.00 +15 48 29.8 105.164005 40.490206 n.a. n.a. 1.002785393126 -0.4953609 0.01037259555715 -0.2922581 168.1226 /T 11.7553 176.4/ 0.5567 n.a. n.a. 1.0576860 355.79567 -65.59303 2024-Oct-31 20:00 01 35 45.91 +15 48 40.2 107.268997 42.312209 n.a. n.a. 1.002783406398 -0.4953390 0.01037144287341 -0.2824464 168.1158 /T 11.7621 176.3/ 0.5455 n.a. n.a. 1.0464963 350.68208 -65.08470 2024-Oct-31 20:10 01 35 45.76 +15 48 50.4 109.468720 44.113232 n.a. n.a. 1.002781419758 -0.4953170 0.01037033050349 -0.2721588 168.1087 /T 11.7691 176.2/ 0.5343 n.a. n.a. 1.0418111 345.67777 -64.36569 2024-Oct-31 20:20 01 35 45.55 +15 49 00.4 111.775158 45.889555 n.a. n.a. 1.002779433206 -0.4952951 0.01036926031692 -0.2614150 168.1014 /T 11.7763 176.2/ 0.5231 n.a. n.a. 1.0428577 340.84423 -63.43376 2024-Oct-31 20:30 01 35 45.29 +15 49 10.1 114.201567 47.636963 n.a. n.a. 1.002777446743 -0.4952731 0.01036823410274 -0.2502355 168.0939 /T 11.7838 176.1/ 0.5119 n.a. n.a. 1.0487513 336.22956 -62.28871 2024-Oct-31 20:40 01 35 44.97 +15 49 19.6 116.762551 49.350662 n.a. n.a. 1.002775460368 -0.4952511 0.01036725356616 -0.2386415 168.0861 /T 11.7915 176.0/ 0.5008 n.a. n.a. 1.0585483 331.86694 -60.93153 2024-Oct-31 20:50 01 35 44.60 +15 49 28.8 119.474100 51.025181 n.a. n.a. 1.002773474081 -0.4952291 0.01036632032513 -0.2266553 168.0782 /T 11.7994 175.9/ 0.4897 n.a. n.a. 1.0712941 327.77502 -59.36346 2024-Oct-31 21:00 01 35 44.18 +15 49 37.7 122.353545 52.654266 n.a. n.a. 1.002771487882 -0.4952071 0.01036543590724 -0.2142997 168.0700 /T 11.8075 175.8/ 0.4786 n.a. n.a. 1.0860621 323.95991 -57.58509 2024-Oct-31 21:10 01 35 43.71 +15 49 46.3 125.419409 54.230773 n.a. n.a. 1.002769501772 -0.4951851 0.01036460174666 -0.2015985 168.0617 /T 11.8157 175.7/ 0.4676 n.a. n.a. 1.1019803 320.41784 -55.59570 2024-Oct-31 21:20 01 35 43.20 +15 49 54.7 128.691067 55.746547 n.a. n.a. 1.002767515750 -0.4951631 0.01036381918139 -0.1885759 168.0532 /T 11.8241 175.7/ 0.4567 n.a. n.a. 1.1182480 317.13791 -53.39266 2024-Oct-31 21:30 01 35 42.66 +15 50 02.7 132.188160 57.192325 n.a. n.a. 1.002765529817 -0.4951410 0.01036308945056 -0.1752568 168.0446 /T 11.8326 175.6/ 0.4458 n.a. n.a. 1.1341435 314.10460 -50.97108 2024-Oct-31 21:40 01 35 42.07 +15 50 10.4 135.929659 58.557659 n.a. n.a. 1.002763543972 -0.4951190 0.01036241369204 -0.1616669 168.0358 /T 11.8413 175.5/ 0.4350 n.a. n.a. 1.1490252 311.29973 -48.32363 2024-Oct-31 21:50 01 35 41.46 +15 50 17.9 139.932487 59.830886 n.a. n.a. 1.002761558215 -0.4950969 0.01036179294020 -0.1478322 168.0270 /T 11.8501 175.4/ 0.4243 n.a. n.a. 1.1623284 308.70399 -45.44041 2024-Oct-31 22:00 01 35 40.82 +15 50 25.0 144.209631 60.999196 n.a. n.a. 1.002759572548 -0.4950749 0.01036122812384 -0.1337791 168.0180 /T 11.8590 175.3/ 0.4136 n.a. n.a. 1.1735604 306.29796 -42.30916 2024-Oct-31 22:10 01 35 40.15 +15 50 31.7 148.767740 62.048816 n.a. n.a. 1.002757586968 -0.4950528 0.01036072006441 -0.1195349 168.0089 /T 11.8680 175.2/ 0.4031 n.a. n.a. 1.1822942 304.06279 -38.91553 2024-Oct-31 22:20 01 35 39.46 +15 50 38.2 153.604332 62.965378 n.a. n.a. 1.002755601478 -0.4950307 0.01036026947435 -0.1051267 167.9997 /T 11.8771 175.1/ 0.3927 n.a. n.a. 1.1881615 301.98056 -35.24374 2024-Oct-31 22:30 01 35 38.75 +15 50 44.3 158.704951 63.734482 n.a. n.a. 1.002753616076 -0.4950086 0.01035987695572 -0.0905822 167.9905 /T 11.8863 175.0/ 0.3824 n.a. n.a. 1.1908468 300.03451 -31.27754 2024-Oct-31 22:40 01 35 38.03 +15 50 50.1 164.040841 64.342479 n.a. n.a. 1.002751630763 -0.4949865 0.01035954299900 -0.0759295 167.9812 /T 11.8955 174.9/ 0.3722 n.a. n.a. 1.1900815 298.20902 -27.00170 2024-Oct-31 22:50 01 35 37.30 +15 50 55.5 169.567890 64.777420 n.a. n.a. 1.002749645538 -0.4949644 0.01035926798213 -0.0611966 167.9719 /T 11.9047 174.8/ 0.3622 n.a. n.a. 1.1856387 296.48961 -22.40414 2024-Oct-31 23:00 01 35 36.56 +15 51 00.6 175.227582 65.030050 n.a. n.a. 1.002747660403 -0.4949423 0.01035905216974 -0.0464119 167.9626 /T 11.9139 174.7/ 0.3523 n.a. n.a. 1.1773287 294.86281 -17.47857 2024-Oct-31 23:10 t 01 35 35.82 +15 51 05.4 180.950335 65.094705 n.a. n.a. 1.002745675356 -0.4949201 0.01035889571265 -0.0316038 167.9532 /T 11.9232 174.6/ 0.3425 n.a. n.a. 1.1649952 293.31598 -12.22786 2024-Oct-31 23:20 01 35 35.08 +15 51 09.8 186.660995 64.969902 n.a. n.a. 1.002743690398 -0.4948980 0.01035879864758 -0.0168008 167.9439 /T 11.9324 174.5/ 0.3329 n.a. n.a. 1.1485122 291.83713 -6.667420 2024-Oct-31 23:30 01 35 34.34 +15 51 13.9 192.285494 64.658507 n.a. n.a. 1.002741705529 -0.4948758 0.01035876089705 -0.0020314 167.9346 /T 11.9416 174.4/ 0.3234 n.a. n.a. 1.1277810 290.41469 -0.828326 2024-Oct-31 23:40 01 35 33.61 +15 51 17.7 197.757278 64.167419 n.a. n.a. 1.002739720749 -0.4948537 0.01035878226957 0.0126761 167.9253 /T 11.9508 174.3/ 0.3141 n.a. n.a. 1.1027284 289.03723 5.2410246 2024-Oct-31 23:50 01 35 32.90 +15 51 21.1 203.022184 63.506864 n.a. n.a. 1.002737736058 -0.4948315 0.01035886245999 0.0272934 167.9161 /T 11.9599 174.2/ 0.3050 n.a. n.a. 1.0733043 287.69314 11.475510 2024-Nov-01 00:00 01 35 32.20 +15 51 24.2 208.041011 62.689450 n.a. n.a. 1.002735751456 -0.4948093 0.01035900105014 0.0417924 167.9070 /T 11.9689 174.1/ 0.2960 n.a. n.a. 1.0394808 286.37022 17.796807 $$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 ***************************************************************************************************************************************************************************************************************************************************