API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Jul 05, 2025 Euclid Observatory (spacecraft) -680 https://www.esa.int/Science_Exploration/Space_Science/Euclid BACKGROUND: Euclid was built and operated by the European Space Agency with contributions from NASA. It launched July 01, 2023 @ 15:12 UTC on a SpaceX Falcon 9 from Cape Canaveral, Florida, USA. After a one-month transit, its operational orbit will halo around the Earth-Sun Lagrange point 2 (L2), at an average distance of 1.5 million km from Earth. This location keeps pace with Earth as it orbits the Sun (and also hosts ESA's Gaia and NASA's James Webb space telescopes, among others). Nominal mission lifetime is six years, with the possibility of extension (limited by the amount of cold gas used for propulsion). MISSION: Euclid is a cosmology survey mission, optimised to determine the properties of dark energy and dark matter on universal scales to address key questions: - What is the structure and history of the cosmic web? - What is the nature of dark matter? - How has the expansion of the Universe changed over time? - What is the nature of dark energy? - Is our understanding of gravity complete? In addition, Euclid will perform near-infrared spectroscopy of hundreds of millions of galaxies and stars. This will allow investigation of the chemical and kinematical properties of many targets in detail. Euclid's image quality will be at least four times sharper than that achieved by ground-based sky surveys. SPACECRAFT: 4.7m tall, 3.7 m diameter Two major components: service and payload modules Service module 850 kg Payload module 800 kg Propellant 210 kg Balancing mass 40 kg Service module contains: electric power generation and distribution attitude control data processing electronics propulsion telecommand and telemetry thermal control SCIENCE INSTRUMENTS (payload module): - 1.2-m diameter telescope - Visible-wavelength camera (the VISible instrument, VIS) - Near-Infrared Spectrometer and Photometer, NISP) SPACECRAFT TRAJECTORY Tracking-data based from ESA 2025-Jun-10, predicts thereafter: Trajectory name Start Stop -------------------------------------------- ----------- ----------- euclid_flp_00069_20230701_20310907_v01 2023-Jul-01 2031-Sep-07 ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Thu Jul 10 00:02:11 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: Euclid (spacecraft) (-680) {source: Euclid_current} Center body name: Earth (399) {source: DE441} Center-site name: iTelescope Obs.,Beryl Junc. (Sato) ******************************************************************************* 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 : 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: DE441} Rel. light bend : Sun {source: DE441} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian RTS-only print : NO EOP file : eop.250709.p251005 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-JUL-09. PREDICTS-> 2025-OCT-04 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 >..... Elevation Cut-off Requested .....< 2024-Oct-31 02:20 03 50 55.60 +08 55 37.1 78.683056 0.123107 n.a. n.a. 1.000732784664 -0.4274909 0.00855953640326 -0.2707620 157.5629 /L 22.2501 142.1/ 1.9851 n.a. n.a. 5.5877799 61.252231 -25.09062 2024-Oct-31 02:30 03 50 58.85 +08 56 04.1 80.196430 2.066003 n.a. n.a. 1.000731070190 -0.4274474 0.00855844725499 -0.2722559 157.5581 /L 22.2550 142.2/ 1.9637 n.a. n.a. 5.4546643 60.446246 -25.75138 2024-Oct-31 02:40 03 51 01.99 +08 56 31.1 81.700446 4.018048 n.a. n.a. 1.000729355890 -0.4274038 0.00855735348465 -0.2730665 157.5537 /L 22.2594 142.3/ 1.9422 n.a. n.a. 5.3216578 59.606655 -26.37988 2024-Oct-31 02:50 03 51 05.03 +08 56 58.1 83.198510 5.977864 n.a. n.a. 1.000727641765 -0.4273602 0.00855625783724 -0.2731918 157.5496 /L 22.2634 142.4/ 1.9205 n.a. n.a. 5.1890642 58.732486 -26.97342 2024-Oct-31 03:00 03 51 07.97 +08 57 25.1 84.694063 7.944101 n.a. n.a. 1.000725927815 -0.4273166 0.00855516306294 -0.2726311 157.5460 /L 22.2670 142.5/ 1.8987 n.a. n.a. 5.0571863 57.822850 -27.52900 2024-Oct-31 03:10 03 51 10.81 +08 57 52.1 86.190607 9.915422 n.a. n.a. 1.000724214040 -0.4272730 0.00855407191185 -0.2713852 157.5428 /L 22.2702 142.5/ 1.8768 n.a. n.a. 4.9263242 56.876961 -28.04338 2024-Oct-31 03:20 03 51 13.53 +08 58 19.1 87.691724 11.890496 n.a. n.a. 1.000722500439 -0.4272294 0.00855298712888 -0.2694559 157.5401 /L 22.2730 142.6/ 1.8549 n.a. n.a. 4.7967748 55.894172 -28.51301 2024-Oct-31 03:30 03 51 16.16 +08 58 46.1 89.201110 13.867984 n.a. n.a. 1.000720787014 -0.4271858 0.00855191144840 -0.2668466 157.5377 /L 22.2753 142.7/ 1.8328 n.a. n.a. 4.6688297 54.874008 -28.93398 2024-Oct-31 03:40 03 51 18.68 +08 59 13.0 90.722601 15.846526 n.a. n.a. 1.000719073763 -0.4271422 0.00855084758912 -0.2635619 157.5358 /L 22.2773 142.8/ 1.8107 n.a. n.a. 4.5427738 53.816206 -29.30208 2024-Oct-31 03:50 03 51 21.10 +08 59 39.9 92.260205 17.824731 n.a. n.a. 1.000717360688 -0.4270985 0.00854979824888 -0.2596074 157.5342 /L 22.2788 142.9/ 1.7885 n.a. n.a. 4.4188841 52.720764 -29.61265 2024-Oct-31 04:00 03 51 23.42 +09 00 06.7 93.818139 19.801160 n.a. n.a. 1.000715647788 -0.4270549 0.00854876609947 -0.2549905 157.5330 /L 22.2800 143.0/ 1.7663 n.a. n.a. 4.2974273 51.587982 -29.86065 2024-Oct-31 04:10 03 51 25.64 +09 00 33.4 95.400866 21.774309 n.a. n.a. 1.000713935062 -0.4270112 0.00854775378155 -0.2497195 157.5323 /L 22.2808 143.1/ 1.7440 n.a. n.a. 4.1786581 50.418518 -30.04056 2024-Oct-31 04:20 03 51 27.76 +09 01 00.0 97.013139 23.742598 n.a. n.a. 1.000712222513 -0.4269675 0.00854676389951 -0.2438040 157.5319 /L 22.2812 143.2/ 1.7217 n.a. n.a. 4.0628175 49.213447 -30.14639 2024-Oct-31 04:30 03 51 29.79 +09 01 26.6 98.660047 25.704348 n.a. n.a. 1.000710510138 -0.4269238 0.00854579901655 -0.2372550 157.5319 /L 22.2812 143.2/ 1.6995 n.a. n.a. 3.9501300 47.974308 -30.17162 2024-Oct-31 04:40 03 51 31.72 +09 01 53.1 100.347067 27.657760 n.a. n.a. 1.000708797938 -0.4268801 0.00854486164967 -0.2300845 157.5323 /L 22.2808 143.3/ 1.6772 n.a. n.a. 3.8408022 46.703171 -30.10916 2024-Oct-31 04:50 03 51 33.55 +09 02 19.4 102.080118 29.600893 n.a. n.a. 1.000707085914 -0.4268364 0.00854395426484 -0.2223060 157.5330 /L 22.2801 143.4/ 1.6549 n.a. n.a. 3.7350200 45.402685 -29.95134 2024-Oct-31 05:00 03 51 35.30 +09 02 45.6 103.865624 31.531633 n.a. n.a. 1.000705374066 -0.4267927 0.00854307927223 -0.2139338 157.5341 /L 22.2791 143.5/ 1.6327 n.a. n.a. 3.6329470 44.076133 -29.68991 2024-Oct-31 05:10 03 51 36.96 +09 03 11.7 105.710575 33.447669 n.a. n.a. 1.000703662392 -0.4267490 0.00854223902151 -0.2049837 157.5355 /L 22.2777 143.6/ 1.6106 n.a. n.a. 3.5347219 42.727472 -29.31594 2024-Oct-31 05:20 03 51 38.53 +09 03 37.6 107.622600 35.346452 n.a. n.a. 1.000701950894 -0.4267052 0.00854143579735 -0.1954725 157.5373 /L 22.2759 143.7/ 1.5885 n.a. n.a. 3.4404572 41.361371 -28.81990 2024-Oct-31 05:30 03 51 40.02 +09 04 03.4 109.610036 37.225154 n.a. n.a. 1.000700239572 -0.4266615 0.00854067181491 -0.1854179 157.5394 /L 22.2739 143.8/ 1.5664 n.a. n.a. 3.3502374 39.983232 -28.19165 2024-Oct-31 05:40 03 51 41.43 +09 04 29.1 111.681996 39.080630 n.a. n.a. 1.000698528426 -0.4266177 0.00853994921559 -0.1748390 157.5417 /L 22.2716 143.9/ 1.5445 n.a. n.a. 3.2641175 38.599195 -27.42045 2024-Oct-31 05:50 03 51 42.77 +09 04 54.5 113.848436 40.909354 n.a. n.a. 1.000696817454 -0.4265739 0.00853927006280 -0.1637556 157.5444 /L 22.2689 144.0/ 1.5226 n.a. n.a. 3.1821231 37.216129 -26.49508 2024-Oct-31 06:00 03 51 44.03 +09 05 19.8 116.120209 42.707370 n.a. n.a. 1.000695106659 -0.4265301 0.00853863633796 -0.1521887 157.5474 /L 22.2660 144.1/ 1.5008 n.a. n.a. 3.1042494 35.841604 -25.40394 2024-Oct-31 06:10 03 51 45.21 +09 05 44.9 118.509098 44.470221 n.a. n.a. 1.000693396039 -0.4264863 0.00853804993661 -0.1401603 157.5506 /L 22.2628 144.2/ 1.4792 n.a. n.a. 3.0304624 34.483842 -24.13528 2024-Oct-31 06:20 03 51 46.34 +09 06 09.9 121.027813 46.192879 n.a. n.a. 1.000691685596 -0.4264425 0.00853751266472 -0.1276929 157.5541 /L 22.2593 144.3/ 1.4577 n.a. n.a. 2.9606996 33.151648 -22.67746 2024-Oct-31 06:30 03 51 47.40 +09 06 34.6 123.689931 47.869661 n.a. n.a. 1.000689975328 -0.4263987 0.00853702623513 -0.1148105 157.5578 /L 22.2557 144.4/ 1.4363 n.a. n.a. 2.8948727 31.854330 -21.01938 2024-Oct-31 06:40 03 51 48.39 +09 06 59.1 126.509761 49.494157 n.a. n.a. 1.000688265235 -0.4263548 0.00853659226417 -0.1015372 157.5618 /L 22.2518 144.5/ 1.4151 n.a. n.a. 2.8328699 30.601598 -19.15104 2024-Oct-31 06:50 03 51 49.34 +09 07 23.4 129.502084 51.059145 n.a. n.a. 1.000686555319 -0.4263110 0.00853621226854 -0.0878985 157.5659 /L 22.2477 144.6/ 1.3940 n.a. n.a. 2.7745598 29.403453 -17.06422 2024-Oct-31 07:00 03 51 50.23 +09 07 47.5 132.681744 52.556522 n.a. n.a. 1.000684845579 -0.4262671 0.00853588766225 -0.0739203 157.5702 /L 22.2434 144.7/ 1.3731 n.a. n.a. 2.7197956 28.270077 -14.75342 2024-Oct-31 07:10 03 51 51.07 +09 08 11.4 136.063022 53.977253 n.a. n.a. 1.000683136014 -0.4262233 0.00853561975390 -0.0596292 157.5748 /L 22.2389 144.8/ 1.3524 n.a. n.a. 2.6684204 27.211712 -12.21686 2024-Oct-31 07:20 03 51 51.87 +09 08 35.0 139.658760 55.311359 n.a. n.a. 1.000681426626 -0.4261794 0.00853540974408 -0.0450523 157.5794 /L 22.2343 144.9/ 1.3319 n.a. n.a. 2.6202725 26.238542 -9.457644 2024-Oct-31 07:30 03 51 52.63 +09 08 58.4 143.479195 56.547958 n.a. n.a. 1.000679717414 -0.4261355 0.00853525872297 -0.0302176 157.5842 /L 22.2295 145.0/ 1.3116 n.a. n.a. 2.5751916 25.360586 -6.484945 2024-Oct-31 07:40 03 51 53.36 +09 09 21.6 147.530493 57.675387 n.a. n.a. 1.000678008378 -0.4260916 0.00853516766824 -0.0151533 157.5892 /L 22.2246 145.1/ 1.2915 n.a. n.a. 2.5330248 24.587588 -3.314967 2024-Oct-31 07:50 03 51 54.05 +09 09 44.5 151.813047 58.681433 n.a. n.a. 1.000676299518 -0.4260477 0.00853513744306 0.0001118 157.5942 /L 22.2196 145.2/ 1.2716 n.a. n.a. 2.4936331 23.928919 0.0284074 2024-Oct-31 08:00 03 51 54.72 +09 10 07.2 156.319686 59.553693 n.a. n.a. 1.000674590835 -0.4260038 0.00853516879448 0.0155485 157.5993 /L 22.2145 145.3/ 1.2519 n.a. n.a. 2.4568976 23.393485 3.5135653 2024-Oct-31 08:10 03 51 55.36 +09 10 29.7 161.034047 60.280074 n.a. n.a. 1.000672882327 -0.4259598 0.00853526235185 0.0311275 157.6045 /L 22.2094 145.4/ 1.2325 n.a. n.a. 2.4227257 22.989630 7.1018785 2024-Oct-31 08:20 03 51 55.99 +09 10 51.9 165.929483 60.849417 n.a. n.a. 1.000671173996 -0.4259159 0.00853541862567 0.0468187 157.6098 /L 22.2042 145.5/ 1.2133 n.a. n.a. 2.3910566 22.725047 10.749234 2024-Oct-31 08:30 03 51 56.60 +09 11 13.8 170.968899 61.252200 n.a. n.a. 1.000669465842 -0.4258719 0.00853563800651 0.0625924 157.6150 /L 22.1989 145.6/ 1.1944 n.a. n.a. 2.3618665 22.606673 14.408280 2024-Oct-31 08:40 03 51 57.21 +09 11 35.5 176.105862 61.481236 n.a. n.a. 1.000667757864 -0.4258279 0.00853592076427 0.0784182 157.6203 /L 22.1937 145.7/ 1.1757 n.a. n.a. 2.3351730 22.640571 18.031118 2024-Oct-31 08:50 t 03 51 57.81 +09 11 56.9 181.287069 61.532271 n.a. n.a. 1.000666050062 -0.4257840 0.00853626704767 0.0942660 157.6256 /L 22.1884 145.8/ 1.1573 n.a. n.a. 2.3110390 22.831803 21.572032 2024-Oct-31 09:00 03 51 58.42 +09 12 18.1 186.455954 61.404352 n.a. n.a. 1.000664342437 -0.4257400 0.00853667688390 0.1101054 157.6309 /L 22.1832 145.9/ 1.1391 n.a. n.a. 2.2895746 23.184265 24.989878 2024-Oct-31 09:10 03 51 59.03 +09 12 39.1 191.556880 61.099921 n.a. n.a. 1.000662634988 -0.4256960 0.00853715017865 0.1259062 157.6361 /L 22.1780 146.0/ 1.1213 n.a. n.a. 2.2709390 23.700511 28.249800 2024-Oct-31 09:20 03 51 59.65 +09 12 59.8 196.539151 60.624592 n.a. n.a. 1.000660927716 -0.4256519 0.00853768671621 0.1416380 157.6413 /L 22.1729 146.1/ 1.1037 n.a. n.a. 2.2553399 24.381550 31.324158 2024-Oct-31 09:30 03 52 00.28 +09 13 20.2 201.360182 59.986670 n.a. n.a. 1.000659220621 -0.4256079 0.00853828615997 0.1572709 157.6464 /L 22.1678 146.2/ 1.0864 n.a. n.a. 2.2430315 25.226625 34.192685 2024-Oct-31 09:40 03 52 00.93 +09 13 40.4 205.987380 59.196496 n.a. n.a. 1.000657513702 -0.4255639 0.00853894805306 0.1727750 157.6513 /L 22.1628 146.3/ 1.0693 n.a. n.a. 2.2343113 26.232995 36.842029 2024-Oct-31 09:50 03 52 01.61 +09 14 00.3 210.398664 58.265736 n.a. n.a. 1.000655806960 -0.4255198 0.00853967181929 0.1881207 157.6562 /L 22.1580 146.4/ 1.0526 n.a. n.a. 2.2295140 27.395723 39.264911 2024-Oct-31 10:00 03 52 02.32 +09 14 20.0 214.581857 57.206703 n.a. n.a. 1.000654100395 -0.4254758 0.00854045676424 0.2032785 157.6610 /L 22.1533 146.5/ 1.0362 n.a. n.a. 2.2290037 28.707517 41.459094 2024-Oct-31 10:10 03 52 03.05 +09 14 39.5 218.533303 56.031782 n.a. n.a. 1.000652394007 -0.4254317 0.00854130207669 0.2182197 157.6655 /L 22.1487 146.5/ 1.0200 n.a. n.a. 2.2331645 30.158626 43.426338 2024-Oct-31 10:20 03 52 03.83 +09 14 58.7 222.256136 54.752993 n.a. n.a. 1.000650687795 -0.4253876 0.00854220683022 0.2329156 157.6700 /L 22.1443 146.6/ 1.0042 n.a. n.a. 2.2423884 31.736841 45.171452 2024-Oct-31 10:30 03 52 04.64 +09 15 17.7 225.758494 53.381691 n.a. n.a. 1.000648981760 -0.4253435 0.00854316998503 0.2473383 157.6742 /L 22.1401 146.7/ 0.9886 n.a. n.a. 2.2570634 33.427617 46.701490 2024-Oct-31 10:40 03 52 05.50 +09 15 36.4 229.051916 51.928382 n.a. n.a. 1.000647275903 -0.4252994 0.00854419039002 0.2614603 157.6783 /L 22.1360 146.8/ 0.9734 n.a. n.a. 2.2775591 35.214327 48.025110 2024-Oct-31 10:50 03 52 06.41 +09 15 54.9 232.150001 50.402645 n.a. n.a. 1.000645570222 -0.4252553 0.00854526678504 0.2752548 157.6821 /L 22.1322 146.9/ 0.9584 n.a. n.a. 2.3042143 37.078667 49.152083 2024-Oct-31 11:00 03 52 07.38 +09 16 13.2 235.067370 48.813111 n.a. n.a. 1.000643864719 -0.4252112 0.00854639780340 0.2886953 157.6857 /L 22.1286 147.0/ 0.9438 n.a. n.a. 2.3373238 39.001171 50.092919 2024-Oct-31 11:10 03 52 08.40 +09 16 31.3 237.818904 47.167498 n.a. n.a. 1.000642159392 -0.4251670 0.00854758197460 0.3017566 157.6891 /L 22.1253 147.0/ 0.9295 n.a. n.a. 2.3771279 40.961824 50.858585 2024-Oct-31 11:20 03 52 09.48 +09 16 49.2 240.419224 45.472673 n.a. n.a. 1.000640454243 -0.4251229 0.00854881772714 0.3144136 157.6921 /L 22.1222 147.1/ 0.9155 n.a. n.a. 2.4238048 42.940722 51.460286 2024-Oct-31 11:30 03 52 10.62 +09 17 06.9 242.882346 43.734727 n.a. n.a. 1.000638749270 -0.4250787 0.00855010339173 0.3266426 157.6950 /L 22.1193 147.2/ 0.9018 n.a. n.a. 2.4774643 44.918711 51.909286 2024-Oct-31 11:40 03 52 11.84 +09 17 24.4 245.221485 41.959052 n.a. n.a. 1.000637044475 -0.4250346 0.00855143720450 0.3384202 157.6975 /L 22.1168 147.3/ 0.8884 n.a. n.a. 2.5381465 46.877966 52.216764 2024-Oct-31 11:50 03 52 13.12 +09 17 41.7 247.448955 40.150429 n.a. n.a. 1.000635339858 -0.4249904 0.00855281731046 0.3497242 157.6997 /L 22.1146 147.4/ 0.8752 n.a. n.a. 2.6058220 48.802463 52.393678 2024-Oct-31 12:00 03 52 14.48 +09 17 58.8 249.576133 38.313093 n.a. n.a. 1.000633635417 -0.4249462 0.00855424176720 0.3605333 157.7017 /L 22.1126 147.4/ 0.8624 n.a. n.a. 2.6803956 50.678311 52.450658 2024-Oct-31 12:10 03 52 15.92 +09 18 15.7 251.613483 36.450815 n.a. n.a. 1.000631931154 -0.4249020 0.00855570854864 0.3708272 157.7033 /L 22.1110 147.5/ 0.8500 n.a. n.a. 2.7617115 52.493939 52.397908 2024-Oct-31 12:20 03 52 17.44 +09 18 32.5 253.570589 34.566953 n.a. n.a. 1.000630227068 -0.4248578 0.00855721554901 0.3805864 157.7045 /L 22.1097 147.6/ 0.8378 n.a. n.a. 2.8495603 54.240148 52.245129 2024-Oct-31 12:30 03 52 19.04 +09 18 49.1 255.456223 32.664520 n.a. n.a. 1.000628523160 -0.4248135 0.00855876058700 0.3897927 157.7054 /L 22.1088 147.6/ 0.8258 n.a. n.a. 2.9436864 55.910033 52.001462 2024-Oct-31 12:40 A 03 52 20.73 +09 19 05.6 257.278409 30.746224 n.a. n.a. 1.000626819429 -0.4247693 0.00856034140994 0.3984287 157.7060 /L 22.1082 147.7/ 0.8142 n.a. n.a. 3.0437959 57.498825 51.675445 2024-Oct-31 12:50 A 03 52 22.51 +09 19 21.9 259.044495 28.814516 n.a. n.a. 1.000625115875 -0.4247250 0.00856195569826 0.4064784 157.7062 /L 22.1080 147.8/ 0.8029 n.a. n.a. 3.1495639 59.003657 51.274994 2024-Oct-31 13:00 A 03 52 24.37 +09 19 38.1 260.761220 26.871629 n.a. n.a. 1.000623412500 -0.4246808 0.00856360106996 0.4139268 157.7060 /L 22.1081 147.8/ 0.7919 n.a. n.a. 3.2606416 60.423307 50.807400 2024-Oct-31 13:10 Nm 03 52 26.33 +09 19 54.2 262.434786 24.919607 n.a. n.a. 1.000621709301 -0.4246365 0.00856527508523 0.4207601 157.7054 /L 22.1087 147.9/ 0.7811 n.a. n.a. 3.3766623 61.757921 50.279333 2024-Oct-31 13:20 Nm 03 52 28.39 +09 20 10.2 264.070917 22.960338 n.a. n.a. 1.000620006281 -0.4245922 0.00856697525121 0.4269655 157.7045 /L 22.1096 147.9/ 0.7707 n.a. n.a. 3.4972471 63.008750 49.696869 2024-Oct-31 13:30 Nm 03 52 30.54 +09 20 26.1 265.674920 20.995579 n.a. n.a. 1.000618303438 -0.4245479 0.00856869902674 0.4325318 157.7031 /L 22.1109 148.0/ 0.7605 n.a. n.a. 3.6220085 64.177900 49.065513 2024-Oct-31 13:40 Cm 03 52 32.79 +09 20 41.9 267.251736 19.026977 n.a. n.a. 1.000616600772 -0.4245036 0.00857044382735 0.4374486 157.7014 /L 22.1126 148.1/ 0.7506 n.a. n.a. 3.7505549 65.268120 48.390239 2024-Oct-31 13:50 Cm 03 52 35.14 +09 20 57.6 268.805991 17.056091 n.a. n.a. 1.000614898285 -0.4244593 0.00857220703020 0.4417072 157.6992 /L 22.1147 148.1/ 0.7409 n.a. n.a. 3.8824931 66.282605 47.675527 >..... Daylight Cut-off Requested .....< >..... Elevation 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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ***************************************************************************************************************************************************************************************************************************************************