API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Mar 21, 2025 MMS-1 Spacecraft / (Earth) -140482 https://www.nasa.gov/mission_pages/mms/index.html MMS 1 Magnetospheric Multiscale (MMS) mission: the first of four identically instrumented space physics spacecraft studying the Earth's magnetosphere. Octagonal in shape; 2.5-m wide, 1.2-m high, spinning at 3 rpm during science operations. Eight deployable booms: four 60-meter wire booms, two 12.5 meter booms, two 5-m booms. Mass: 1250 kg; 318 W power generation; S-band communications. NOTE: The spacecraft may be maneuvered frequently. Therefore, the JSpOC TLE-based trajectory provided here may at times depart from the actual trajectory. This can happen because TLEs do not model thruster firings; the TLE trajectory solutions must be reinitialized after each event. Launched: 2015-Mar-13 02:44 UTC (Atlas V, Cape Canaveral, USA) ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Sat Mar 22 02:44:01 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: MMS-1 (spacecraft) (-140482) {source: MMS-1} Center body name: Earth (399) {source: DE441} Center-site name: VdS Remote Observatory, Hakos ******************************************************************************* Start time : A.D. 2025-Feb-17 00:00:00.0000 UT Stop time : A.D. 2025-Mar-01 00:00:00.0000 UT Step-size : 10 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 16.3613, -23.2365766, 1.8515 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 16.3613,5865.52307,-2501.54567 {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.250321.p250617 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-MAR-21. PREDICTS-> 2025-JUN-16 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 .....< 2025-Feb-17 02:50 m 21 33 59.58 -47 37 08.5 143.269524 0.136112 n.a. n.a. 0.987781001304 -2.2703921 0.00044756057812 2.3097058 36.0514 /L 143.9335 106.4/ 81.8509 n.a. n.a. 198.52617 59.160897 65.060183 2025-Feb-17 03:00 m 21 36 42.70 -47 20 33.9 142.333468 0.993903 n.a. n.a. 0.987771993848 -2.2304809 0.00045671179648 2.2620900 35.6946 /L 144.2901 106.9/ 81.8221 n.a. n.a. 188.39310 58.463683 65.307241 2025-Feb-17 03:10 m 21 39 15.63 -47 04 30.5 141.405341 1.907573 n.a. n.a. 0.987763143500 -2.1918939 0.00046567566844 2.2161356 35.3581 /L 144.6264 107.3/ 81.7931 n.a. n.a. 178.95206 57.763499 65.555361 2025-Feb-17 03:20 m 21 41 39.13 -46 48 56.8 140.487926 2.875333 n.a. n.a. 0.987754445115 -2.1545533 0.00047445872127 2.1717807 35.0400 /L 144.9443 107.8/ 81.7640 n.a. n.a. 170.13691 57.054266 65.805047 2025-Feb-17 03:30 Am 21 43 53.87 -46 33 51.4 139.583713 3.895402 n.a. n.a. 0.987745893849 -2.1183873 0.00048306724860 2.1289702 34.7388 /L 145.2454 108.2/ 81.7346 n.a. n.a. 161.89055 56.330171 66.056661 2025-Feb-17 03:40 Am 21 46 00.45 -46 19 12.7 138.694933 4.966011 n.a. n.a. 0.987737485132 -2.0833299 0.00049150733635 2.0876553 34.4529 /L 145.5312 108.6/ 81.7050 n.a. n.a. 154.16360 55.585630 66.310418 2025-Feb-17 03:50 Am 21 47 59.43 -46 04 59.2 137.823586 6.085404 n.a. n.a. 0.987729214649 -2.0493205 0.00049978488539 2.0477922 34.1810 /L 145.8029 108.9/ 81.6750 n.a. n.a. 146.91322 54.815252 66.566383 2025-Feb-17 04:00 Nm 21 49 51.28 -45 51 09.5 136.971472 7.251846 n.a. n.a. 0.987721078318 -2.0163030 0.00050790563122 2.0093418 33.9218 /L 146.0618 109.3/ 81.6448 n.a. n.a. 140.10224 54.013824 66.824466 2025-Feb-17 04:10 Nm 21 51 36.44 -45 37 42.2 136.140216 8.463620 n.a. n.a. 0.987713072272 -1.9842256 0.00051587516121 1.9722690 33.6744 /L 146.3091 109.6/ 81.6141 n.a. n.a. 133.69839 53.176300 67.084413 2025-Feb-17 04:20 Nm 21 53 15.32 -45 24 35.9 135.331296 9.719031 n.a. n.a. 0.987705192845 -1.9530403 0.00052369892938 1.9365423 33.4375 /L 146.5458 109.9/ 81.5831 n.a. n.a. 127.67360 52.297811 67.345803 2025-Feb-17 04:30 Cm 21 54 48.28 -45 11 49.3 134.546068 11.016410 n.a. n.a. 0.987697436556 -1.9227027 0.00053138226929 1.9021329 33.2103 /L 146.7729 110.2/ 81.5515 n.a. n.a. 122.00348 51.373680 67.608038 >..... Daylight Cut-off Requested .....< 2025-Feb-17 17:40 C 22 21 12.76 -31 17 02.0 239.802393 8.858440 n.a. n.a. 0.987326768640 -0.6500323 0.00098843951489 1.3099500 19.8358 /T 160.1448 116.2/ 76.7311 n.a. n.a. 67.844812 30.947802 58.248867 2025-Feb-17 17:50 C 22 21 40.38 -31 07 24.3 239.162913 6.903486 n.a. n.a. 0.987324187906 -0.6400471 0.00099366860158 1.3005172 19.7014 /T 160.2792 116.3/ 76.6577 n.a. n.a. 67.869620 32.007673 57.917953 2025-Feb-17 18:00 N 22 22 08.78 -30 57 53.0 238.484774 4.961814 n.a. n.a. 0.987321647018 -0.6301296 0.00099885875669 1.2905109 19.5703 /T 160.4103 116.3/ 76.5849 n.a. n.a. 67.892715 33.058383 57.574678 2025-Feb-17 18:10 N 22 22 37.96 -30 48 28.3 237.767306 3.034439 n.a. n.a. 0.987319145706 -0.6202789 0.00100400768045 1.2799319 19.4426 /T 160.5380 116.4/ 76.5127 n.a. n.a. 67.913498 34.098762 57.218890 2025-Feb-17 18:20 N 22 23 07.88 -30 39 10.2 237.009666 1.122431 n.a. n.a. 0.987316683705 -0.6104945 0.00100911307847 1.2687819 19.3184 /T 160.6622 116.5/ 76.4411 n.a. n.a. 67.931301 35.127713 56.850466 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2025-Feb-18 17:40 C 22 59 31.56 -18 54 48.6 254.372993 11.626866 n.a. n.a. 0.987286774496 0.4381957 0.00122239567650 0.3341789 14.4242 /T 165.5581 118.9/ 68.4267 n.a. n.a. 40.190657 21.003029 29.364251 2025-Feb-18 17:50 C 22 59 42.14 -18 48 33.5 253.615966 9.413897 n.a. n.a. 0.987288546520 0.4449091 0.00122372530804 0.3294515 14.4060 /T 165.5763 118.9/ 68.3426 n.a. n.a. 40.595908 22.615585 28.747066 2025-Feb-18 18:00 N 22 59 53.57 -18 42 19.0 252.838508 7.211496 n.a. n.a. 0.987290345458 0.4516260 0.00122503451811 0.3239858 14.3917 /T 165.5907 118.9/ 68.2589 n.a. n.a. 41.018044 24.201509 28.072134 2025-Feb-18 18:10 N 23 00 05.83 -18 36 05.2 252.038978 5.020255 n.a. n.a. 0.987292171327 0.4583466 0.00122632034612 0.3177824 14.3811 /T 165.6012 118.9/ 68.1758 n.a. n.a. 41.455982 25.758019 27.340809 2025-Feb-18 18:20 N 23 00 18.92 -18 29 52.2 251.215627 2.840812 n.a. n.a. 0.987294024140 0.4650712 0.00122757983580 0.3108429 14.3745 /T 165.6079 118.9/ 68.0932 n.a. n.a. 41.908474 27.282652 26.554595 2025-Feb-18 18:30 A 23 00 32.85 -18 23 40.1 250.366593 0.673854 n.a. n.a. 0.987295903916 0.4718000 0.00122881004063 0.3031705 14.3717 /T 165.6106 118.9/ 68.0113 n.a. n.a. 42.374135 28.773259 25.715122 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2025-Feb-19 17:40 C 23 30 11.44 -04 28 13.5 270.560169 12.344477 n.a. n.a. 0.987849606228 1.6258970 0.00089542726223 -0.7504768 20.4453 /T 159.5365 121.0/ 59.4521 n.a. n.a. 60.841489 16.337764 -48.73489 2025-Feb-19 17:50 C 23 30 23.48 -04 18 27.0 269.742686 10.023735 n.a. n.a. 0.987856151402 1.6380391 0.00089240233507 -0.7582402 20.5418 /T 159.4400 121.0/ 59.3599 n.a. n.a. 61.785556 17.796830 -48.68601 2025-Feb-19 18:00 N 23 30 36.72 -04 08 36.0 268.932426 7.707114 n.a. n.a. 0.987862745508 1.6503003 0.00088934453440 -0.7668744 20.6443 /T 159.3376 121.0/ 59.2680 n.a. n.a. 62.781794 19.235818 -48.65081 2025-Feb-19 18:10 N 23 30 51.16 -03 58 40.6 268.126971 5.395059 n.a. n.a. 0.987869389032 1.6626835 0.00088625036122 -0.7763823 20.7527 /T 159.2292 121.1/ 59.1765 n.a. n.a. 63.830539 20.650872 -48.62928 2025-Feb-19 18:20 N 23 31 06.83 -03 48 40.5 267.323997 3.087999 n.a. n.a. 0.987876082468 1.6751915 0.00088311630737 -0.7867655 20.8671 /T 159.1147 121.1/ 59.0855 n.a. n.a. 64.931852 22.038456 -48.62139 2025-Feb-19 18:30 A 23 31 23.74 -03 38 35.9 266.521245 0.786350 n.a. n.a. 0.987882826323 1.6878275 0.00087993886144 -0.7980240 20.9876 /T 158.9942 121.1/ 58.9950 n.a. n.a. 66.085543 23.395382 -48.62714 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2025-Feb-20 17:40 C 21 19 07.05 -42 59 58.0 222.758731 0.881829 n.a. n.a. 0.988430997200 -1.7679016 0.00058166239005 2.2625119 34.5208 /L 145.4602 67.0/ 50.0444 n.a. n.a. 194.77122 48.462265 58.813221 2025-Feb-20 17:50 C 21 21 18.34 -42 38 47.7 222.287887 -0.525508 n.a. n.a. 0.988423959558 -1.7425661 0.00059068805756 2.2389722 34.0365 /L 145.9444 67.3/ 49.9474 n.a. n.a. 190.11242 48.637618 58.771397 >..... Elevation Cut-off Requested .....< 2025-Feb-21 04:30 Cm 22 39 02.94 -32 04 30.2 124.909673 0.476785 n.a. n.a. 0.988123199481 -0.7428804 0.00095928160352 0.7068929 22.0325 /T 157.9467 80.0/ 45.5867 n.a. n.a. 43.111181 55.606439 54.730847 2025-Feb-21 04:40 Cm 22 39 30.24 -32 00 28.6 123.934988 2.260681 n.a. n.a. 0.988120241757 -0.7322868 0.00096208750939 0.6926025 21.9923 /T 157.9869 80.1/ 45.5497 n.a. n.a. 41.508644 54.565938 55.122581 >..... Daylight Cut-off Requested .....< 2025-Feb-21 17:40 C 22 43 19.99 -24 40 21.7 246.528254 7.671855 n.a. n.a. 0.988001188557 -0.0704024 0.00117578999559 0.7907050 15.3295 /T 164.6525 77.9/ 40.4602 n.a. n.a. 47.300264 26.906126 49.626507 2025-Feb-21 17:50 C 22 43 36.12 -24 33 21.3 245.779487 5.576503 n.a. n.a. 0.988000920327 -0.0631635 0.00117894767007 0.7836540 15.2453 /T 164.7367 77.9/ 40.3625 n.a. n.a. 47.624362 28.277007 49.103504 2025-Feb-21 18:00 N 22 43 53.09 -24 26 23.3 244.999013 3.494826 n.a. n.a. 0.988000681087 -0.0559413 0.00118207571031 0.7759242 15.1636 /T 164.8185 77.9/ 40.2648 n.a. n.a. 47.953725 29.625132 48.551073 2025-Feb-21 18:10 N 22 44 10.87 -24 19 28.0 244.185453 1.427668 n.a. n.a. 0.988000470771 -0.0487355 0.00118517139952 0.7675187 15.0845 /T 164.8976 77.9/ 40.1672 n.a. n.a. 48.287221 30.948960 47.969287 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2025-Feb-22 17:40 C 23 13 08.48 -12 55 51.2 259.842025 8.954240 n.a. n.a. 0.988249289295 0.9433583 0.00114070888743 -0.1196735 12.4824 /T 167.5033 77.2/ 30.9965 n.a. n.a. 43.136863 20.795080 -11.37984 2025-Feb-22 17:50 C 23 13 19.39 -12 49 07.7 259.032543 6.688456 n.a. n.a. 0.988253086194 0.9512090 0.00114021909138 -0.1255599 12.4971 /T 167.4886 77.1/ 30.9027 n.a. n.a. 43.688969 22.411822 -11.78235 2025-Feb-22 18:00 N 23 13 31.21 -12 42 23.7 258.210307 4.431362 n.a. n.a. 0.988256914613 0.9590886 0.00113970413685 -0.1322270 12.5164 /T 167.4693 77.1/ 30.8087 n.a. n.a. 44.267078 23.996874 -12.23754 2025-Feb-22 18:10 N 23 13 43.94 -12 35 39.2 257.373201 2.183470 n.a. n.a. 0.988260774671 0.9669975 0.00113916089448 -0.1396736 12.5405 /T 167.4452 77.1/ 30.7146 n.a. n.a. 44.869968 25.547140 -12.74233 2025-Feb-22 18:20 A 23 13 57.59 -12 28 54.3 256.519042 -0.054673 n.a. n.a. 0.988264666485 0.9749362 0.00113858624338 -0.1478967 12.5693 /T 167.4164 77.1/ 30.6204 n.a. n.a. 45.496226 27.059919 -13.29355 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< 2025-Feb-23 17:40 C 00 03 49.02 +17 49 11.1 292.946639 6.889938 n.a. n.a. 0.989263168103 3.2404355 0.00041037795541 -2.1708713 36.3717 /T 143.6142 90.1/ 22.0106 n.a. n.a. 262.87205 14.524284 -59.00820 2025-Feb-23 17:50 C 00 04 37.08 +18 32 29.6 292.601590 4.610212 n.a. n.a. 0.989276251696 3.2896435 0.00040159797860 -2.2115460 37.0258 /T 142.9601 90.5/ 21.9256 n.a. n.a. 275.41763 15.090168 -58.84531 2025-Feb-23 18:00 N 00 05 29.57 +19 17 47.7 292.329799 2.335776 n.a. n.a. 0.989289536518 3.3408879 0.00039264966183 -2.2549017 37.7182 /T 142.2678 90.9/ 21.8404 n.a. n.a. 289.13334 15.632286 -58.67634 2025-Feb-23 18:10 N 00 06 26.86 +20 05 16.8 292.134344 0.068729 n.a. n.a. 0.989303031037 3.3943231 0.00038352193741 -2.3010998 38.4521 /T 141.5340 91.4/ 21.7549 n.a. n.a. 304.17511 16.148580 -58.50014 >..... Elevation Cut-off Requested .....< 2025-Feb-23 22:20 13 22 48.07 +30 43 16.9 47.116832 14.263453 n.a. n.a. 0.989705671887 -0.1196831 0.00004950122395 -0.9132218 134.2860 /L 45.7118 98.6/ 19.6782 n.a. n.a. 13436.282 162.24617 -6.475621 2025-Feb-23 22:30 14 11 56.57 -03 12 00.2 83.040466 23.882519 n.a. n.a. 0.989701693203 -1.7632870 0.00005288919847 2.4332259 122.8062 /L 57.1920 72.1/ 19.6023 n.a. n.a. 11459.649 158.24190 18.374758 2025-Feb-23 22:40 e 14 58 17.50 -26 29 19.9 110.201402 23.327369 n.a. n.a. 0.989692405740 -2.7696759 0.00006662804765 4.1412338 105.2382 /L 74.7591 53.0/ 19.5273 n.a. n.a. 7296.1344 149.54670 35.174299 2025-Feb-23 22:50 15 43 16.04 -39 44 58.4 125.951876 19.575797 n.a. n.a. 0.989680142431 -3.2862274 0.00008449426824 4.6553529 92.3513 /L 87.6448 42.1/ 19.4532 n.a. n.a. 4662.9356 139.02920 44.347613 2025-Feb-23 23:00 16 25 54.67 -47 13 47.7 135.168129 15.880844 n.a. n.a. 0.989666437138 -3.5182238 0.00010334460985 4.7111200 83.3612 /L 96.6337 36.0/ 19.3800 n.a. n.a. 3214.8145 128.48183 49.553283 2025-Feb-23 23:10 17 05 00.90 -51 30 16.2 140.922912 12.800093 n.a. n.a. 0.989652138524 -3.5986011 0.00012204914969 4.6103595 76.7944 /L 103.1994 32.4/ 19.3077 n.a. n.a. 2371.9919 118.72905 52.799286 2025-Feb-23 23:20 17 39 49.90 -53 55 39.2 144.698342 10.302894 n.a. n.a. 0.989637693850 -3.5996425 0.00014023074439 4.4599095 71.7617 /L 108.2313 30.5/ 19.2365 n.a. n.a. 1841.8362 110.09819 55.005826 2025-Feb-23 23:30 18 10 11.97 -55 14 31.8 147.240945 8.279940 n.a. n.a. 0.989623336810 -3.5593208 0.00015778038304 4.2984776 67.7539 /L 112.2382 29.4/ 19.1662 n.a. n.a. 1485.3665 102.65201 56.611978 2025-Feb-23 23:40 18 36 23.12 -55 52 39.2 148.959861 6.635184 n.a. n.a. 0.989609188640 -3.4977720 0.00017468732491 4.1403664 64.4666 /L 115.5248 28.9/ 19.0969 n.a. n.a. 1232.6043 96.313763 57.844298 2025-Feb-23 23:50 18 58 52.28 -56 05 27.0 150.097645 5.295970 n.a. n.a. 0.989595310398 -3.4258943 0.00019097674548 3.9906170 61.7077 /L 118.2831 28.8/ 19.0286 n.a. n.a. 1045.6771 90.946657 58.829065 2025-Feb-24 00:00 19 18 11.83 -56 02 23.5 150.807923 4.208899 n.a. n.a. 0.989581730277 -3.3496993 0.00020668559289 3.8506049 59.3498 /L 120.6403 28.9/ 18.9614 n.a. n.a. 902.69931 86.400798 59.641618 2025-Feb-24 00:10 19 34 52.37 -55 49 24.4 151.193472 3.334610 n.a. n.a. 0.989568458224 -3.2725414 0.00022185296039 3.7202419 57.3050 /L 122.6846 29.1/ 18.8953 n.a. n.a. 790.29722 82.536401 60.329581 2025-Feb-24 00:20 19 49 20.62 -55 30 16.1 151.326259 2.643695 n.a. n.a. 0.989555493999 -3.1962918 0.00023651629876 3.5988855 55.5103 /L 124.4788 29.4/ 18.8302 n.a. n.a. 699.90626 79.232526 60.924574 2025-Feb-24 00:30 20 01 58.94 -55 07 24.3 151.258653 2.113805 n.a. n.a. 0.989542831709 -3.1219743 0.00025071007174 3.4857239 53.9193 /L 126.0693 29.7/ 18.7662 n.a. n.a. 625.82076 76.388387 61.448484 2025-Feb-24 00:40 20 13 05.64 -54 42 24.2 151.030022 1.727643 n.a. n.a. 0.989530462433 -3.0501208 0.00026446544828 3.3799385 52.4971 /L 127.4911 30.1/ 18.7032 n.a. n.a. 564.11042 73.921483 61.917003 2025-Feb-24 00:50 m 20 22 55.63 -54 16 18.2 150.670804 1.471573 n.a. n.a. 0.989518375745 -2.9809739 0.00027781042575 3.2807693 51.2165 /L 128.7712 30.5/ 18.6414 n.a. n.a. 511.98936 71.764736 62.341731 2025-Feb-24 01:00 m 20 31 40.95 -53 49 47.3 150.205101 1.334641 n.a. n.a. 0.989506560617 -2.9146058 0.00029077011572 3.1875361 50.0563 /L 129.9310 30.9/ 18.5807 n.a. n.a. 467.43361 69.863614 62.731465 2025-Feb-24 01:10 m 20 39 31.39 -53 23 18.8 149.652394 1.307886 n.a. n.a. 0.989495005948 -2.8509893 0.00030336707368 3.0996418 48.9995 /L 130.9875 31.3/ 18.5211 n.a. n.a. 428.94094 68.173613 63.093028 2025-Feb-24 01:20 m 20 46 34.92 -52 57 10.4 149.028713 1.383841 n.a. n.a. 0.989483700870 -2.7900402 0.00031562162079 3.0165665 48.0323 /L 131.9544 31.6/ 18.4626 n.a. n.a. 395.37523 66.658176 63.431813 2025-Feb-24 01:30 m 20 52 58.05 -52 31 33.4 148.347444 1.556173 n.a. n.a. 0.989472634918 -2.7316438 0.00032755213757 2.9378593 47.1432 /L 132.8431 32.0/ 18.4052 n.a. n.a. 365.86292 65.287028 63.752151 2025-Feb-24 01:40 m 20 58 46.16 -52 06 35.0 147.619910 1.819416 n.a. n.a. 0.989461798123 -2.6756703 0.00033917532302 2.8631299 46.3229 /L 133.6631 32.4/ 18.3489 n.a. n.a. 339.72244 64.034871 64.057568 2025-Feb-24 01:50 m 21 04 03.70 -51 42 19.2 146.855790 2.168774 n.a. n.a. 0.989451181046 -2.6219849 0.00035050641956 2.7920399 45.5635 /L 134.4223 32.7/ 18.2937 n.a. n.a. 316.41501 62.880358 64.350961 2025-Feb-24 02:00 m 21 08 54.39 -51 18 48.2 146.063429 2.599974 n.a. n.a. 0.989440774788 -2.5704535 0.00036155940662 2.7242959 44.8581 /L 135.1273 33.0/ 18.2396 n.a. n.a. 295.50974 61.805286 64.634728 2025-Feb-24 02:10 m 21 13 21.33 -50 56 02.7 145.250075 3.109154 n.a. n.a. 0.989430570981 -2.5209462 0.00037234716658 2.6596425 44.2011 /L 135.7840 33.3/ 18.1866 n.a. n.a. 276.65838 60.793975 64.910863 2025-Feb-24 02:20 m 21 17 27.17 -50 34 02.4 144.422061 3.692780 n.a. n.a. 0.989420561765 -2.4733391 0.00038288162679 2.5978574 43.5876 /L 136.3974 33.6/ 18.1346 n.a. n.a. 259.57681 59.832772 65.181022 2025-Feb-24 02:30 m 21 21 14.14 -50 12 46.4 143.584946 4.347582 n.a. n.a. 0.989410739761 -2.4275156 0.00039317388112 2.5387460 43.0131 /L 136.9716 33.9/ 18.0838 n.a. n.a. 244.03130 58.909660 65.446575 2025-Feb-24 02:40 m 21 24 44.16 -49 52 13.4 142.743629 5.070504 n.a. n.a. 0.989401098042 -2.3833664 0.00040323429430 2.4821381 42.4739 /L 137.5105 34.2/ 18.0340 n.a. n.a. 229.82805 58.013959 65.708639 2025-Feb-24 02:50 m 21 27 58.86 -49 32 21.8 141.902443 5.858669 n.a. n.a. 0.989391630108 -2.3407895 0.00041307259137 2.4278840 41.9667 /L 138.0175 34.5/ 17.9852 n.a. n.a. 216.80527 57.136078 65.968110 2025-Feb-24 03:00 m 21 30 59.68 -49 13 09.7 141.065229 6.709348 n.a. n.a. 0.989382329847 -2.2996904 0.00042269793466 2.3758520 41.4886 /L 138.4953 34.7/ 17.9375 n.a. n.a. 204.82710 56.267323 66.225674 2025-Feb-24 03:10 m 21 33 47.85 -48 54 35.2 140.235405 7.619942 n.a. n.a. 0.989373191517 -2.2599812 0.00043211899021 2.3259256 41.0370 /L 138.9468 34.9/ 17.8907 n.a. n.a. 193.77878 55.399752 66.481829 2025-Feb-24 03:20 m 21 36 24.45 -48 36 36.5 139.416022 8.587960 n.a. n.a. 0.989364209712 -2.2215807 0.00044134398502 2.2780018 40.6095 /L 139.3740 35.1/ 17.8450 n.a. n.a. 183.56290 54.526057 66.736885 2025-Feb-24 03:30 m 21 38 50.42 -48 19 11.6 138.609810 9.611009 n.a. n.a. 0.989355379341 -2.1844134 0.00045038075663 2.2319889 40.2041 /L 139.7792 35.3/ 17.8002 n.a. n.a. 174.09645 53.639475 66.990978 2025-Feb-24 03:40 Am 21 41 06.61 -48 02 18.6 137.819229 10.686784 n.a. n.a. 0.989346695602 -2.1484097 0.00045923679602 2.1878051 39.8188 /L 140.1643 35.5/ 17.7564 n.a. n.a. 165.30838 52.733728 67.244066 2025-Feb-24 03:50 Am 21 43 13.76 -47 45 55.5 137.046500 11.813060 n.a. n.a. 0.989338153963 -2.1135049 0.00046791928476 2.1453776 39.4520 /L 140.5309 35.7/ 17.7135 n.a. n.a. 157.13770 51.802980 67.495935 2025-Feb-24 04:00 Nm 21 45 12.52 -47 30 00.5 136.293652 12.987680 n.a. n.a. 0.989329750143 -2.0796391 0.00047643512727 2.1046408 39.1022 /L 140.8806 35.9/ 17.6714 n.a. n.a. 149.53186 50.841821 67.746198 2025-Feb-24 04:10 Nm 21 47 03.50 -47 14 31.9 135.562547 14.208559 n.a. n.a. 0.989321480089 -2.0467567 0.00048479097879 2.0655355 38.7678 /L 141.2147 36.0/ 17.6303 n.a. n.a. 142.44552 49.845260 67.994295 2025-Feb-24 04:20 Nm 21 48 47.21 -46 59 27.8 134.854920 15.473670 n.a. n.a. 0.989313339964 -2.0148062 0.00049299326952 2.0280084 38.4477 /L 141.5347 36.2/ 17.5899 n.a. n.a. 135.83940 48.808745 68.239496 2025-Feb-24 04:30 Cm 21 50 24.14 -46 44 46.8 134.172403 16.781044 n.a. n.a. 0.989305326131 -1.9837396 0.00050104822566 1.9920109 38.1406 /L 141.8416 36.3/ 17.5504 n.a. n.a. 129.67945 47.728195 68.480903 2025-Feb-24 04:40 Cm 21 51 54.73 -46 30 27.1 133.516563 18.128766 n.a. n.a. 0.989297435138 -1.9535123 0.00050896188741 1.9574986 37.8456 /L 142.1365 36.4/ 17.5117 n.a. n.a. 123.93604 46.600051 68.717454 >..... Daylight Cut-off Requested .....< 2025-Feb-24 17:40 C 22 19 51.96 -31 29 12.1 237.127366 3.272002 n.a. n.a. 0.988919275786 -0.6904753 0.00098087266525 1.3326374 22.3382 /L 157.6402 35.5/ 13.9319 n.a. n.a. 71.008472 34.285171 57.715171 2025-Feb-24 17:50 C 22 20 23.72 -31 19 29.2 236.384694 1.375926 n.a. n.a. 0.988916528609 -0.6804342 0.00098619175359 1.3212272 22.1667 /L 157.8117 35.5/ 13.8610 n.a. n.a. 70.969704 35.281670 57.365867 2025-Feb-24 18:00 N 22 20 56.18 -31 09 53.8 235.600426 -0.503928 n.a. n.a. 0.988913821541 -0.6704637 0.00099146400297 1.3092634 21.9973 /L 157.9811 35.5/ 13.7897 n.a. n.a. 70.927119 36.266963 57.004991 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< >..... Solar Elongation Cut-off Requested .....< >..... Elevation Cut-off Requested .....< >..... Solar Elongation Cut-off Requested .....< 2025-Feb-26 17:40 C 23 27 45.61 -04 52 26.2 267.238682 5.605609 n.a. n.a. 0.989403968920 1.6010503 0.00091646688988 -0.7061722 12.7149 /T 167.2735 30.7/ 2.5105 n.a. n.a. 60.275681 20.070752 -46.60409 2025-Feb-26 17:50 N 23 27 59.99 -04 42 58.2 266.428564 3.298898 n.a. n.a. 0.989410403865 1.6134552 0.00091362563712 -0.7161403 12.8130 /T 167.1753 30.7/ 2.4801 n.a. n.a. 61.252077 21.497898 -46.63426 2025-Feb-26 18:00 N 23 28 15.56 -04 33 26.4 265.617017 0.997891 n.a. n.a. 0.989416888729 1.6259980 0.00091074272895 -0.7269959 12.9174 /T 167.0709 30.7/ 2.4495 n.a. n.a. 62.274720 22.894311 -46.68141 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Feb-28 04:00 A 22 38 38.10 -32 37 01.7 125.592854 0.337894 n.a. n.a. 0.989795662874 -0.8225030 0.00093386529043 0.7759998 24.6311 /L 155.3464 24.8/ 0.0750 n.a. n.a. 44.655038 54.429054 56.990864 2025-Feb-28 04:10 N 22 39 06.15 -32 32 44.5 124.612864 2.102307 n.a. n.a. 0.989792397260 -0.8116139 0.00093693584705 0.7610731 24.5572 /L 155.4202 24.7/ 0.0796 n.a. n.a. 42.979552 53.376940 57.396285 2025-Feb-28 04:20 N 22 39 32.74 -32 28 30.4 123.668327 3.894084 n.a. n.a. 0.989789175037 -0.8008151 0.00093994798558 0.7468211 24.4849 /L 155.4925 24.7/ 0.0843 n.a. n.a. 41.349944 52.205156 57.824977 2025-Feb-28 04:30 C 22 39 57.87 -32 24 19.1 122.758210 5.711955 n.a. n.a. 0.989785995846 -0.7901048 0.00094290443132 0.7332539 24.4140 /L 155.5635 24.7/ 0.0890 n.a. n.a. 39.771169 50.904481 58.274064 2025-Feb-28 04:40 C 22 40 21.56 -32 20 10.1 121.881538 7.554710 n.a. n.a. 0.989782859338 -0.7794813 0.00094580794868 0.7203807 24.3442 /L 155.6333 24.6/ 0.0939 n.a. n.a. 38.248568 49.465673 58.739862 >..... Daylight Cut-off Requested .....< 2025-Feb-28 17:30 Cm 22 43 09.04 -24 44 14.1 244.888299 3.979894 n.a. n.a. 0.989650446914 -0.1223796 0.00117240777075 0.8186966 16.9471 /L 163.0330 22.1/ 0.5993 n.a. n.a. 48.367853 28.720221 50.060012 2025-Feb-28 17:40 Cm 22 43 26.54 -24 37 11.3 244.084725 1.913050 n.a. n.a. 0.989649975659 -0.1151228 0.00117566914205 0.8103371 16.8298 /L 163.1504 22.1/ 0.6123 n.a. n.a. 48.673335 30.053553 49.513699 2025-Feb-28 17:50 Nm 22 43 44.86 -24 30 11.5 243.246521 -0.138493 n.a. n.a. 0.989649533409 -0.1078852 0.00117889570525 0.8013092 16.7134 /L 163.2669 22.0/ 0.6256 n.a. n.a. 48.982221 31.362189 48.939245 >..... 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 ***************************************************************************************************************************************************************************************************************************************************