API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Feb 13, 2026 Wind Spacecraft / (Earth) -8 https://wind.nasa.gov/ https://hpde.io/SMWG/Observatory/Wind https://www.nasa.gov/feature/goddard/2019/25-years-of-science-in-the-solar-wind BACKGROUND: The primary science objectives of the Wind mission are: - Provide plasma, energetic particle, and magnetic field data for magnetospheric and ionospheric studies - Investigate plasma processes occurring in the near-Earth solar wind - Provide baseline, 1 AU, ecliptic plane observations for inner and outer heliospheric missions Wind is a spin-stabilized spacecraft launched on a Delta II 7925-10 rocket 1994-Nov-1 @ 09:31 UTC from pad 17B at Cape Canaveral, FL. The spacecraft has visited many regions of the near-Earth space environment. For the first nine months of operation, Wind was placed in a double-lunar swingby orbit near the ecliptic plane, with apogee from 80 to 250 Earth radii and perigee of between 5 and 10 Earth radii. In this orbit, lunar gravity assists were used to keep its apogee over the day hemisphere of the Earth, and magnetospheric observations were made through several orbit passages. Wind was then temporarily inserted into a small amplitude "halo" orbit, about the sunward Sun-Earth gravitational equilibrium point (SEMB-L1), varying from 235 to 265 Earth radii (Re). In 2001 and 2002, Wind had a distant prograde orbit that took it +/- 300 Re leading and lagging Earth. This orbit provided a wide baseline to study solar wind structures and correlations. In 2003 (Nov 2003 to Feb 2004), Wind reached the L2 Lagrange point 240 Re anti-sunward from Earth providing a 500 Re spatial separation from ACE solar wind observations along with measurements of the distant Earth magnetotail. In late June of 2004, Wind used its last lunar gravity assist to insert into a L1 Lissajous orbit to observe the unperturbed solar wind prior to it impacting the magnetosphere of Earth, providing an approx. one-hour warning of changes in the solar wind. On June 26, 2020, Wind completed the first halo orbit insertion maneuver. A second was completed on August 31, 2020, a third on November 9, 2020. The maneuvers were necessary to prevent Wind from entering the solar exclusion zone around the solar disk, where solar radio emissions can interfere with spacecraft communications. The halo orbit is an ellipse tilted with respect to the ecliptic plane, while Lissajous has an out-of-plane (z) component oscillation decoupled from in-plane components. Wind currently has enough fuel to continue its mission at L1 into the 2070s. SPACECRAFT PHYSICAL CHARACTERISTICS: Bus size : 2.4 x 1.8 m cylinder Power : 370 Watts (body mounted solar panels) Launch mass: 1250 kg Dry mass : 950 kg Extension : Long wire spin-plane antennas, inertial booms, and spin-plane appendages to support sensors. Experiment booms deployed along both Z axes. Spin rate : 20 rpm (~3 s period) w/axis < 1 degree from normal to ecliptic (spacecraft +Z spin axis aligned with south ecliptic pole) SCIENCE INSTRUMENTS 1. Magnetic Field Investigation (MFI) 2. Solar Wind Experiment (SWE) Faraday Cup - Ion Data Electron Data 3. 3D Plasma Analyzer 4. SMS Suprathermal Particle Data 5. EPACT High Energy Particle Data 6. WAVES Radio and Plasma Waves Data 7. KONUS and TGRS Data (gamma ray) SPACECRAFT TRAJECTORY: This trajectory is a concatenation of weekly prediction provided by GSFC. Based on tracking data through 2026-Feb-09, prediction thereafter. Trajectory name Start Stop ---------------------------- ----------- ----------- Wind_merged 1994-Nov-01 2026-May-05 ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Mon Feb 16 05:58:16 2026 Pasadena, USA / Horizons ******************************************************************************* Target body name: Wind (spacecraft) (-8) {source: Wind_merged} Center body name: Earth (399) {source: DE441} Center-site name: El Berrueco ******************************************************************************* Start time : A.D. 2025-Jul-06 00:00:00.0000 UT Stop time : A.D. 2025-Jul-20 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: 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.260213.p260512 EOP coverage : DATA-BASED 1962-JAN-20 TO 2026-FEB-13. PREDICTS-> 2026-MAY-11 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 .....< >..... Daylight Cut-off Requested .....< >..... Solar Elongation Cut-off Requested .....< 2025-Jul-11 03:50 Nm 06 28 54.10 +25 39 47.8 55.190755 0.109234 n.a. n.a. 1.005571062121 0.0128058 0.01124109214378 -0.3001479 12.4833 /L 167.3782 164.6/ 99.7519 n.a. n.a. 1.9350891 62.658719 -48.78246 2025-Jul-11 04:00 Nm 06 28 55.33 +25 39 56.8 56.810077 1.679067 n.a. n.a. 1.005571113410 0.0127696 0.01123987727578 -0.3055777 12.4859 /L 167.3756 164.6/ 99.7503 n.a. n.a. 1.8530302 60.653976 -50.51698 2025-Jul-11 04:10 Nm 06 28 56.49 +25 40 06.0 58.402178 3.278127 n.a. n.a. 1.005571164553 0.0127335 0.01123864175194 -0.3104466 12.4888 /L 167.3727 164.5/ 99.7487 n.a. n.a. 1.7708196 58.489028 -52.22932 2025-Jul-11 04:20 Cm 06 28 57.56 +25 40 15.4 59.968970 4.904723 n.a. n.a. 1.005571215551 0.0126973 0.01123738784098 -0.3147453 12.4920 /L 167.3694 164.4/ 99.7469 n.a. n.a. 1.6888723 56.141844 -53.91424 2025-Jul-11 04:30 Cm 06 28 58.56 +25 40 24.9 61.512424 6.557233 n.a. n.a. 1.005571266405 0.0126611 0.01123611784745 -0.3184652 12.4956 /L 167.3659 164.4/ 99.7450 n.a. n.a. 1.6076508 53.587346 -55.56535 2025-Jul-11 04:40 Cm 06 28 59.47 +25 40 34.5 63.034569 8.234105 n.a. n.a. 1.005571317113 0.0126250 0.01123483410743 -0.3215991 12.4994 /L 167.3620 164.3/ 99.7430 n.a. n.a. 1.5276742 50.797246 -57.17487 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-12 03:50 Nm 06 30 05.32 +25 36 37.1 55.677254 0.499387 n.a. n.a. 1.005576944565 0.0075462 0.01123460652597 -0.3007817 13.1473 /L 166.7071 152.0/ 98.1712 n.a. n.a. 1.9391931 62.853867 -48.79859 2025-Jul-12 04:00 Nm 06 30 06.56 +25 36 46.1 57.289576 2.078051 n.a. n.a. 1.005576974757 0.0075093 0.01123338941630 -0.3060619 13.1498 /L 166.7045 152.0/ 98.1584 n.a. n.a. 1.8561443 60.869312 -50.53052 2025-Jul-12 04:10 Nm 06 30 07.71 +25 36 55.2 58.875190 3.685451 n.a. n.a. 1.005577004801 0.0074724 0.01123215225690 -0.3107783 13.1527 /L 166.7016 151.9/ 98.1454 n.a. n.a. 1.7729459 58.725765 -52.24167 2025-Jul-12 04:20 Nm 06 30 08.79 +25 37 04.5 60.436031 5.319913 n.a. n.a. 1.005577034697 0.0074355 0.01123089732752 -0.3149218 13.1559 /L 166.6984 151.8/ 98.1320 n.a. n.a. 1.6900081 56.401162 -53.92694 2025-Jul-12 04:30 Cm 06 30 09.79 +25 37 14.0 61.974090 6.979834 n.a. n.a. 1.005577064445 0.0073986 0.01122962694256 -0.3184843 13.1594 /L 166.6949 151.8/ 98.1184 n.a. n.a. 1.6077882 53.870312 -55.58010 2025-Jul-12 04:40 Cm 06 30 10.71 +25 37 23.6 63.491415 8.663679 n.a. n.a. 1.005577094044 0.0073616 0.01122834344668 -0.3214588 13.1632 /L 166.6911 151.7/ 98.1045 n.a. n.a. 1.5267989 51.104677 -57.19352 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-13 03:50 Nm 06 31 20.47 +25 33 14.5 56.153698 0.879543 n.a. n.a. 1.005579757126 0.0021744 0.01122864191744 -0.3016618 13.7981 /L 166.0493 139.1/ 94.3660 n.a. n.a. 1.9481155 63.155683 -48.76628 2025-Jul-13 04:00 Nm 06 31 21.71 +25 33 23.4 57.759368 2.466734 n.a. n.a. 1.005579765771 0.0021367 0.01122742157111 -0.3067961 13.8006 /L 166.0467 139.0/ 94.3429 n.a. n.a. 1.8639837 61.201501 -50.49432 2025-Jul-13 04:10 Nm 06 31 22.88 +25 33 32.5 59.338839 4.082184 n.a. n.a. 1.005579774265 0.0020990 0.01122618176567 -0.3113639 13.8034 /L 166.0439 139.0/ 94.3195 n.a. n.a. 1.7796874 59.090843 -52.20336 2025-Jul-13 04:20 Nm 06 31 23.97 +25 33 41.8 60.894066 5.724237 n.a. n.a. 1.005579782608 0.0020612 0.01122492479134 -0.3153563 13.8066 /L 166.0407 138.9/ 94.2958 n.a. n.a. 1.6956291 56.801803 -53.88850 2025-Jul-13 04:30 Cm 06 31 24.97 +25 33 51.1 62.427060 7.391308 n.a. n.a. 1.005579790800 0.0020235 0.01122365297182 -0.3187655 13.8100 /L 166.0373 138.8/ 94.2717 n.a. n.a. 1.6122571 54.309267 -55.54374 2025-Jul-13 04:40 Cm 06 31 25.90 +25 34 00.6 63.939890 9.081877 n.a. n.a. 1.005579798840 0.0019858 0.01122236865993 -0.3215849 13.8137 /L 166.0335 138.8/ 94.2472 n.a. n.a. 1.5300740 51.584656 -57.16173 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-14 03:40 Ar 06 32 38.77 +25 29 30.3 54.991986 -0.318026 n.a. n.a. 1.005579447124 -0.0032746 0.01122418269355 -0.2973649 14.4312 /L 165.4094 126.0/ 88.4172 n.a. n.a. 2.0463445 65.338786 -46.96692 2025-Jul-14 03:50 Nm 06 32 40.10 +25 29 39.0 56.618986 1.247871 n.a. n.a. 1.005579433913 -0.0033131 0.01122297874642 -0.3029171 14.4333 /L 165.4072 125.9/ 88.3850 n.a. n.a. 1.9615956 63.558377 -48.70270 2025-Jul-14 04:00 Nm 06 32 41.36 +25 29 47.9 58.218372 2.843274 n.a. n.a. 1.005579420547 -0.0033517 0.01122175364964 -0.3079099 14.4358 /L 165.4047 125.8/ 88.3526 n.a. n.a. 1.8762974 61.643918 -50.42525 2025-Jul-14 04:10 Nm 06 32 42.54 +25 29 56.9 59.792062 4.466473 n.a. n.a. 1.005579407027 -0.0033902 0.01122050966663 -0.3123336 14.4386 /L 165.4020 125.8/ 88.3199 n.a. n.a. 1.7908047 59.576721 -52.13085 2025-Jul-14 04:20 Nm 06 32 43.64 +25 30 06.1 61.342028 6.115832 n.a. n.a. 1.005579393353 -0.0034287 0.01121924909751 -0.3161796 14.4416 /L 165.3989 125.7/ 88.2869 n.a. n.a. 1.7055099 57.335215 -53.81489 2025-Jul-14 04:30 Cm 06 32 44.66 +25 30 15.4 62.870304 7.789781 n.a. n.a. 1.005579379524 -0.0034672 0.01121797427481 -0.3194403 14.4450 /L 165.3955 125.6/ 88.2536 n.a. n.a. 1.6208490 54.894574 -55.47169 2025-Jul-14 04:40 Cm 06 32 45.59 +25 30 24.8 64.378976 9.486816 n.a. n.a. 1.005579365540 -0.0035058 0.01121668755898 -0.3221093 14.4487 /L 165.3918 125.6/ 88.2199 n.a. n.a. 1.5373105 52.226391 -57.09429 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-15 03:40 Am 06 34 03.38 +25 25 41.0 55.451577 0.028395 n.a. n.a. 1.005575933269 -0.0088830 0.01121854498216 -0.2992438 15.0488 /L 164.7852 112.5/ 80.4532 n.a. n.a. 2.0651209 65.788308 -46.90026 2025-Jul-15 03:50 Nm 06 34 04.73 +25 25 49.6 57.072211 1.602641 n.a. n.a. 1.005575897563 -0.0089223 0.01121733376808 -0.3046621 15.0509 /L 164.7831 112.5/ 80.4125 n.a. n.a. 1.9791692 64.051312 -48.62679 2025-Jul-15 04:00 Nm 06 34 06.00 +25 25 58.4 58.665703 3.205931 n.a. n.a. 1.005575861698 -0.0089617 0.01121610194721 -0.3095182 15.0533 /L 164.7807 112.4/ 80.3717 n.a. n.a. 1.8926363 62.184561 -50.34205 2025-Jul-15 04:10 Nm 06 34 07.19 +25 26 07.4 60.233988 4.836573 n.a. n.a. 1.005575825676 -0.0090010 0.01121485179343 -0.3138027 15.0560 /L 164.7780 112.4/ 80.3307 n.a. n.a. 1.8058669 60.169865 -52.04258 2025-Jul-15 04:20 Nm 06 34 08.31 +25 26 16.5 61.779062 6.492945 n.a. n.a. 1.005575789497 -0.0090404 0.01121358561629 -0.3175073 15.0590 /L 164.7750 112.3/ 80.2896 n.a. n.a. 1.7192407 57.986163 -53.72412 2025-Jul-15 04:30 Cm 06 34 09.34 +25 26 25.7 63.302976 8.173495 n.a. n.a. 1.005575753159 -0.0090797 0.01121230575660 -0.3206247 15.0623 /L 164.7717 112.2/ 80.2483 n.a. n.a. 1.6331794 55.609113 -55.38143 2025-Jul-15 04:40 Cm 06 34 10.29 +25 26 35.0 64.807838 9.876733 n.a. n.a. 1.005575716663 -0.0091191 0.01121101458202 -0.3231488 15.0658 /L 164.7681 112.2/ 80.2067 n.a. n.a. 1.5481541 53.010705 -57.00797 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-16 03:40 Am 06 35 33.35 +25 21 36.8 55.898076 0.360168 n.a. n.a. 1.005569155919 -0.0146061 0.01121255812449 -0.3017108 15.6471 /L 164.1805 99.0/ 70.8195 n.a. n.a. 2.0873420 66.306332 -46.84428 2025-Jul-16 03:50 Nm 06 35 34.73 +25 21 45.4 57.512753 1.942420 n.a. n.a. 1.005569097257 -0.0146463 0.01121133727508 -0.3070001 15.6491 /L 164.1785 98.9/ 70.7710 n.a. n.a. 2.0001473 64.618144 -48.55960 2025-Jul-16 04:00 Nm 06 35 36.02 +25 21 54.1 59.100748 3.553271 n.a. n.a. 1.005569038434 -0.0146865 0.01121009634164 -0.3117246 15.6514 /L 164.1762 98.8/ 70.7227 n.a. n.a. 1.9123319 62.805196 -50.26564 2025-Jul-16 04:10 Nm 06 35 37.23 +25 22 02.9 60.664017 5.191046 n.a. n.a. 1.005568979449 -0.0147266 0.01120883760800 -0.3158751 15.6540 /L 164.1736 98.8/ 70.6744 n.a. n.a. 1.8242293 60.849921 -51.95925 2025-Jul-16 04:20 Nm 06 35 38.36 +25 22 11.9 62.204575 6.854139 n.a. n.a. 1.005568920304 -0.0147668 0.01120756339261 -0.3194437 15.6569 /L 164.1707 98.7/ 70.6262 n.a. n.a. 1.7362054 58.731912 -53.63659 2025-Jul-16 04:30 Cm 06 35 39.42 +25 22 21.0 63.724491 8.541012 n.a. n.a. 1.005568860997 -0.0148070 0.01120627604411 -0.3224232 15.6601 /L 164.1675 98.6/ 70.5781 n.a. n.a. 1.6486655 56.427486 -55.29283 2025-Jul-16 04:40 Cm 06 35 40.39 +25 22 30.2 65.225895 10.250190 n.a. n.a. 1.005568801530 -0.0148472 0.01120497793692 -0.3248079 15.6636 /L 164.1640 98.6/ 70.5300 n.a. n.a. 1.5620615 53.909238 -56.92200 2025-Jul-16 04:50 Cm 06 35 41.28 +25 22 39.5 66.710973 11.980255 n.a. n.a. 1.005568741901 -0.0148874 0.01120367146669 -0.3265929 15.6674 /L 164.1602 98.5/ 70.4818 n.a. n.a. 1.4769014 51.145658 -58.51668 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-17 03:40 Am 06 37 09.00 +25 17 16.5 56.331135 0.676068 n.a. n.a. 1.005559039072 -0.0204471 0.01120582824942 -0.3048287 16.2247 /L 163.5969 85.2/ 59.9671 n.a. n.a. 2.1121541 66.876722 -46.81753 2025-Jul-17 03:50 Nm 06 37 10.39 +25 17 25.0 57.940275 2.265986 n.a. n.a. 1.005558956982 -0.0204881 0.01120459514434 -0.3099940 16.2266 /L 163.5950 85.2/ 59.9119 n.a. n.a. 2.0236936 65.240920 -48.51989 2025-Jul-17 04:00 Nm 06 37 11.71 +25 17 33.6 59.523180 3.884078 n.a. n.a. 1.005558874727 -0.0205291 0.01120334245740 -0.3145921 16.2288 /L 163.5928 85.1/ 59.8570 n.a. n.a. 1.9345687 63.485823 -50.21489 2025-Jul-17 04:10 Nm 06 37 12.94 +25 17 42.3 61.081826 5.528681 n.a. n.a. 1.005558792307 -0.0205701 0.01120207248184 -0.3186140 16.2313 /L 163.5903 85.0/ 59.8026 n.a. n.a. 1.8451008 61.594572 -51.89976 2025-Jul-17 04:20 Nm 06 37 14.10 +25 17 51.2 62.618247 7.198207 n.a. n.a. 1.005558709724 -0.0206111 0.01120078754454 -0.3220519 16.2341 /L 163.5875 85.0/ 59.7486 n.a. n.a. 1.7556417 59.547529 -53.57103 2025-Jul-17 04:30 Cm 06 37 15.17 +25 18 00.2 64.134534 8.891130 n.a. n.a. 1.005558626976 -0.0206521 0.01119949000150 -0.3248991 16.2372 /L 163.5843 84.9/ 59.6948 n.a. n.a. 1.6665793 57.321810 -55.22438 2025-Jul-17 04:40 Cm 06 37 16.16 +25 18 09.3 65.632833 10.605989 n.a. n.a. 1.005558544063 -0.0206931 0.01119818223352 -0.3271500 16.2406 /L 163.5809 84.8/ 59.6414 n.a. n.a. 1.5783451 54.890793 -56.85441 2025-Jul-17 04:50 Cm 06 37 17.07 +25 18 18.4 67.115354 12.341378 n.a. n.a. 1.005558460986 -0.0207341 0.01119686664154 -0.3288000 16.2443 /L 163.5772 84.8/ 59.5882 n.a. n.a. 1.4914231 52.223643 -58.45436 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-18 03:40 Am 06 38 50.48 +25 12 39.1 56.750753 0.975242 n.a. n.a. 1.005545515190 -0.0264040 0.01119792825024 -0.3086262 16.7807 /L 163.0350 71.4/ 48.4551 n.a. n.a. 2.1385697 67.481617 -46.83632 2025-Jul-18 03:50 Nm 06 38 51.90 +25 12 47.5 58.354775 2.572496 n.a. n.a. 1.005545409207 -0.0264457 0.01119668015360 -0.3136726 16.7825 /L 163.0332 71.3/ 48.3947 n.a. n.a. 2.0488384 65.899890 -48.52429 2025-Jul-18 04:00 Nm 06 38 53.23 +25 12 55.9 59.932996 4.197515 n.a. n.a. 1.005545303055 -0.0264875 0.01119541295680 -0.3181494 16.7846 /L 163.0311 71.2/ 48.3350 n.a. n.a. 1.9583977 64.204554 -50.20673 2025-Jul-18 04:10 Nm 06 38 54.49 +25 13 04.6 61.487413 5.848653 n.a. n.a. 1.005545196737 -0.0265293 0.01119412896205 -0.3220479 16.7870 /L 163.0287 71.2/ 48.2760 n.a. n.a. 1.8675569 62.379514 -51.88119 2025-Jul-18 04:20 Nm 06 38 55.67 +25 13 13.3 63.020077 7.524333 n.a. n.a. 1.005545090251 -0.0265710 0.01119283050417 -0.3253606 16.7897 /L 163.0260 71.1/ 48.2176 n.a. n.a. 1.7766536 60.405971 -53.54462 2025-Jul-18 04:30 Cm 06 38 56.76 +25 13 22.2 64.533099 9.223043 n.a. n.a. 1.005544983597 -0.0266128 0.01119151994617 -0.3280809 16.7927 /L 163.0230 71.0/ 48.1599 n.a. n.a. 1.6860584 58.261934 -55.19318 2025-Jul-18 04:40 Cm 06 38 57.78 +25 13 31.2 66.028646 10.943334 n.a. n.a. 1.005544876775 -0.0266546 0.01119019967482 -0.3302036 16.7960 /L 163.0197 70.9/ 48.1026 n.a. n.a. 1.5961824 55.921697 -56.82205 2025-Jul-18 04:50 Cm 06 38 58.71 +25 13 40.2 67.508946 12.683812 n.a. n.a. 1.005544769786 -0.0266964 0.01118887209605 -0.3317244 16.7997 /L 163.0160 70.9/ 48.0460 n.a. n.a. 1.5074848 53.355280 -58.42517 >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2025-Jul-19 03:30 Ar 06 40 36.30 +25 07 35.5 55.530604 -0.317979 n.a. n.a. 1.005528648409 -0.0324309 0.01118967323056 -0.3075949 17.3136 /L 162.4966 57.5/ 36.9847 n.a. n.a. 2.2555024 69.536202 -45.23789 2025-Jul-19 03:40 Am 06 40 37.82 +25 07 43.6 57.157264 1.257220 n.a. n.a. 1.005528518251 -0.0324735 0.01118842837475 -0.3130896 17.3150 /L 162.4952 57.4/ 36.9207 n.a. n.a. 2.1655410 68.103269 -46.91276 2025-Jul-19 03:50 Nm 06 40 39.26 +25 07 51.8 58.756585 2.861497 n.a. n.a. 1.005528387923 -0.0325160 0.01118716260622 -0.3180219 17.3167 /L 162.4935 57.3/ 36.8577 n.a. n.a. 2.0745497 66.575528 -48.58541 2025-Jul-19 04:00 Nm 06 40 40.62 +25 08 00.2 60.330524 4.493148 n.a. n.a. 1.005528257424 -0.0325586 0.01118587819960 -0.3223824 17.3187 /L 162.4915 57.3/ 36.7956 n.a. n.a. 1.9828050 64.939860 -50.25416 2025-Jul-19 04:10 Nm 06 40 41.90 +25 08 08.7 61.881098 6.150541 n.a. n.a. 1.005528126754 -0.0326011 0.01118457746562 -0.3261626 17.3210 /L 162.4892 57.2/ 36.7343 n.a. n.a. 1.8906052 63.180946 -51.91690 2025-Jul-19 04:20 Nm 06 40 43.10 +25 08 17.3 63.410379 7.832111 n.a. n.a. 1.005527995914 -0.0326437 0.01118326274665 -0.3293552 17.3236 /L 162.4866 57.1/ 36.6739 n.a. n.a. 1.7982738 61.280850 -53.57097 2025-Jul-19 04:30 Cm 06 40 44.22 +25 08 26.0 64.920495 9.536359 n.a. n.a. 1.005527864903 -0.0326862 0.01118193641235 -0.3319539 17.3265 /L 162.4837 57.0/ 36.6144 n.a. n.a. 1.7061652 59.218526 -55.21299 2025-Jul-19 04:40 Cm 06 40 45.25 +25 08 34.8 66.413632 11.261848 n.a. n.a. 1.005527733721 -0.0327288 0.01118060085513 -0.3339537 17.3297 /L 162.4805 57.0/ 36.5556 n.a. n.a. 1.6146703 56.969257 -56.83872 2025-Jul-19 04:50 Cm 06 40 46.21 +25 08 43.7 67.892043 13.007193 n.a. n.a. 1.005527602368 -0.0327713 0.01117925848566 -0.3353505 17.3332 /L 162.4770 56.9/ 36.4975 n.a. n.a. 1.5242248 54.504042 -58.44276 >..... 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 ***************************************************************************************************************************************************************************************************************************************************