API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Ephemeris / API_USER Sat May 4 03:21:12 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Moon (301) {source: DE441} Center body name: Voyager 1 (spacecraft) (-31) {source: VOYAGER_1_ST+REFIT2022_M} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 1977-Sep-05 14:00:00.0000 UT Stop time : A.D. 1977-Sep-07 14:00:00.0000 UT Step-size : 60 minutes ******************************************************************************* Center geodetic : 0.0, 0.0, 0.0 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center radii : (undefined) Output units : KM-S Calendar mode : Mixed Julian/Gregorian Output type : GEOMETRIC cartesian states Output format : 6 (LT, range, and range-rate) EOP file : eop.240503.p240727 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-03. PREDICTS-> 2024-JUL-26 Reference frame : Ecliptic of J2000.0 ******************************************************************************* JDUT LT RG RR ******************************************************************************* $$SOE 2443392.083333333 = A.D. 1977-Sep-05 14:00:00.0000 UTC 1.341814977176157E+00 4.022660101888540E+05 -1.361865994554180E+01 2443392.125000000 = A.D. 1977-Sep-05 15:00:00.0000 UTC 1.202012495239619E+00 3.603542804945987E+05 -1.080940934507751E+01 2443392.166666667 = A.D. 1977-Sep-05 16:00:00.0000 UTC 1.075180589516021E+00 3.223310317248970E+05 -1.037883419551042E+01 2443392.208333333 = A.D. 1977-Sep-05 17:00:00.0000 UTC 9.520984925574203E-01 2.854319473418837E+05 -1.012964711109414E+01 2443392.250000000 = A.D. 1977-Sep-05 18:00:00.0000 UTC 8.318854599977704E-01 2.493929868271923E+05 -9.886242315109129E+00 2443392.291666667 = A.D. 1977-Sep-05 19:00:00.0000 UTC 7.149405456557749E-01 2.143337835060059E+05 -9.573328370032574E+00 2443392.333333333 = A.D. 1977-Sep-05 20:00:00.0000 UTC 6.025912575894249E-01 1.806523142820448E+05 -9.102115616231458E+00 2443392.375000000 = A.D. 1977-Sep-05 21:00:00.0000 UTC 4.975907226796498E-01 1.491739458301286E+05 -8.313039713975632E+00 2443392.416666667 = A.D. 1977-Sep-05 22:00:00.0000 UTC 4.054351154723240E-01 1.215463898269618E+05 -6.892298918512394E+00 2443392.458333333 = A.D. 1977-Sep-05 23:00:00.0000 UTC 3.366697351420266E-01 1.009310474324371E+05 -4.323720445847462E+00 2443392.500000000 = A.D. 1977-Sep-06 00:00:00.0000 UTC 3.073180475350420E-01 9.213163285829109E+04 -3.858782797148786E-01 2443392.541666667 = A.D. 1977-Sep-06 01:00:00.0000 UTC 3.280947378744281E-01 9.836032792424050E+04 3.712195542592285E+00 2443392.583333333 = A.D. 1977-Sep-06 02:00:00.0000 UTC 3.910857379936480E-01 1.172445546818597E+05 6.532263212809340E+00 2443392.625000000 = A.D. 1977-Sep-06 03:00:00.0000 UTC 4.799597509310509E-01 1.438883134726875E+05 8.109290884664173E+00 2443392.666666667 = A.D. 1977-Sep-06 04:00:00.0000 UTC 5.830173068554978E-01 1.747841914787499E+05 8.971880819776622E+00 2443392.708333333 = A.D. 1977-Sep-06 05:00:00.0000 UTC 6.939912222909973E-01 2.080533343610424E+05 9.468269058346261E+00 2443392.750000000 = A.D. 1977-Sep-06 06:00:00.0000 UTC 8.096571094712949E-01 2.427290949855745E+05 9.773014692560704E+00 2443392.791666667 = A.D. 1977-Sep-06 07:00:00.0000 UTC 9.282868140836839E-01 2.782933857231367E+05 9.971750931791950E+00 2443392.833333333 = A.D. 1977-Sep-06 08:00:00.0000 UTC 1.048898522101173E+00 3.144518661332778E+05 1.010832954856764E+01 2443392.875000000 = A.D. 1977-Sep-06 09:00:00.0000 UTC 1.170902215396409E+00 3.510276532313349E+05 1.020649997480760E+01 2443392.916666667 = A.D. 1977-Sep-06 10:00:00.0000 UTC 1.293925401301529E+00 3.879090765248219E+05 1.027984005041907E+01 2443392.958333333 = A.D. 1977-Sep-06 11:00:00.0000 UTC 1.417722786994044E+00 4.250225990755548E+05 1.033649720256859E+01 2443393.000000000 = A.D. 1977-Sep-06 12:00:00.0000 UTC 1.542126938095234E+00 4.623180253195841E+05 1.038157091786922E+01 2443393.041666667 = A.D. 1977-Sep-06 13:00:00.0000 UTC 1.667020004085796E+00 4.997600245600506E+05 1.041837172920905E+01 2443393.083333333 = A.D. 1977-Sep-06 14:00:00.0000 UTC 1.792316813937390E+00 5.373230631650188E+05 1.044911797477870E+01 2443393.125000000 = A.D. 1977-Sep-06 15:00:00.0000 UTC 1.917954386065939E+00 5.749882597305888E+05 1.047533771130967E+01 2443393.166666667 = A.D. 1977-Sep-06 16:00:00.0000 UTC 2.043885202170880E+00 6.127413686286348E+05 1.049810924711783E+01 2443393.208333333 = A.D. 1977-Sep-06 17:00:00.0000 UTC 2.170072768524660E+00 6.505714493148727E+05 1.051820987859107E+01 2443393.250000000 = A.D. 1977-Sep-06 18:00:00.0000 UTC 2.296488611159320E+00 6.884699655084588E+05 1.053621057772852E+01 2443393.291666667 = A.D. 1977-Sep-06 19:00:00.0000 UTC 2.423110195194150E+00 7.264301614221140E+05 1.055253785688738E+01 2443393.333333333 = A.D. 1977-Sep-06 20:00:00.0000 UTC 2.549919454695604E+00 7.644466210252147E+05 1.056751514001135E+01 2443393.375000000 = A.D. 1977-Sep-06 21:00:00.0000 UTC 2.676901734828361E+00 8.025149509086584E+05 1.058139101430690E+01 2443393.416666667 = A.D. 1977-Sep-06 22:00:00.0000 UTC 2.804045018211260E+00 8.406315483522085E+05 1.059435889132259E+01 2443393.458333333 = A.D. 1977-Sep-06 23:00:00.0000 UTC 2.931339350577562E+00 8.787934291417709E+05 1.060657092643820E+01 2443393.500000000 = A.D. 1977-Sep-07 00:00:00.0000 UTC 3.058776408713705E+00 9.169980980406943E+05 1.061814802874246E+01 2443393.541666667 = A.D. 1977-Sep-07 01:00:00.0000 UTC 3.186349171303025E+00 9.552434501111970E+05 1.062918716298747E+01 2443393.583333333 = A.D. 1977-Sep-07 02:00:00.0000 UTC 3.314051665428079E+00 9.935276947176774E+05 1.063976674645718E+01 2443393.625000000 = A.D. 1977-Sep-07 03:00:00.0000 UTC 3.441878769200680E+00 1.031849296356686E+06 1.064995068621826E+01 2443393.666666667 = A.D. 1977-Sep-07 04:00:00.0000 UTC 3.569826056724318E+00 1.070206928177831E+06 1.065979143301236E+01 2443393.708333333 = A.D. 1977-Sep-07 05:00:00.0000 UTC 3.697889675118338E+00 1.108599435116548E+06 1.066933231533427E+01 2443393.750000000 = A.D. 1977-Sep-07 06:00:00.0000 UTC 3.826066246281170E+00 1.147025804443465E+06 1.067860934042766E+01 2443393.791666667 = A.D. 1977-Sep-07 07:00:00.0000 UTC 3.954352787708082E+00 1.185485142026158E+06 1.068765259640254E+01 2443393.833333333 = A.D. 1977-Sep-07 08:00:00.0000 UTC 4.082746648295638E+00 1.223976653083810E+06 1.069648735291042E+01 2443393.875000000 = A.D. 1977-Sep-07 09:00:00.0000 UTC 4.211245455921828E+00 1.262499626472136E+06 1.070513493191246E+01 2443393.916666667 = A.D. 1977-Sep-07 10:00:00.0000 UTC 4.339847074332583E+00 1.301053421758274E+06 1.071361340158410E+01 2443393.958333333 = A.D. 1977-Sep-07 11:00:00.0000 UTC 4.468549567567060E+00 1.339637458555766E+06 1.072193813307134E+01 2443394.000000000 = A.D. 1977-Sep-07 12:00:00.0000 UTC 4.597351170330342E+00 1.378251207642510E+06 1.073012225006979E+01 2443394.041666667 = A.D. 1977-Sep-07 13:00:00.0000 UTC 4.726250263308001E+00 1.416894183560253E+06 1.073817699406447E+01 2443394.083333333 = A.D. 1977-Sep-07 14:00:00.0000 UTC 4.855245352384754E+00 1.455565938384501E+06 1.074611202274551E+01 $$EOE ******************************************************************************* 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" atomic 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 discontinuous civil UT time-scale 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, a condition noted here as "UT~". Future but as yet undetermined leap-seconds can be expected to change time-tags in the "UT~" interval and, in general, the UT scale may not be suitable for purposes that assume time-tag continuity in the ephemeris. Output in continuous TDB and TT timescales may instead be requested, though these are not linked to Earth's rotation. 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. 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. REFERENCE FRAME AND COORDINATES Ecliptic at the standard reference epoch Reference epoch: J2000.0 X-Y plane: adopted Earth orbital plane at the reference epoch Note: IAU76 obliquity of 84381.448 arcseconds wrt ICRF X-Y plane X-axis : ICRF Z-axis : perpendicular to the X-Y plane in the directional (+ or -) sense of Earth's north pole at the reference epoch. Symbol meaning: JDUT Julian Day Number, Universal Time LT One-way down-leg Newtonian light-time (sec) RG Range; distance from coordinate center (km) RR Range-rate; radial velocity wrt coord. center (km/sec) ABERRATIONS AND CORRECTIONS Geometric state vectors have NO corrections or aberrations applied. 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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov *******************************************************************************