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HORIZONS Time Spans Available

This page shows available HORIZONS ephemeris time spans for the group of bodies selected from the menu on the left. Data are available only for bodies accessible via HORIZONS. All times are Coordinate Time (the uniform time scale and independent variable of the ephemerides), not UT.

Spacecraft

ID  Name   Available Time Span   Ephemeris File 
-204  CONTOUR-A (SPACECRAFT FRAGMENT)   2002-Aug-13 04:00 to 2003-Sep-01 00:00   CONTOUR_OD20A 
-205  CONTOUR-B (SPACECRAFT FRAGMENT)   2002-Aug-13 04:00 to 2003-Sep-01 00:00   CONTOUR_OD20B 
-206  CONTOUR-C (SPACECRAFT FRAGMENT)   2002-Aug-13 04:00 to 2003-Sep-01 00:00   CONTOUR_OD20C 
-150  Cassini Huygens Spacecraft   2004-Dec-25 02:02 to 2005-Jan-14 12:06   HUYGENS.MERGE 
-82  Cassini Spacecraft   1997-Oct-15 09:28 to 2010-Jul-01 12:00   CASSINI.MERGE 
-151  Chandra Observatory   2006-Jan-02 12:02 to 2009-Jun-15 12:01   CHANDRA.MERGED 
-40  Clementine   1994-Feb-19 12:59 to 1994-May-03 13:01   CLEMENTINE.EXTRACT 
-203  Dawn Spacecraft   2007-Sep-27 12:41 to 2009-Jun-01 00:00   DAWN_CURRENT 
-140  Deep Impact Flyby - EPOXI Spacecraft   2005-Jan-12 19:24 to 2012-Feb-01 00:00   EPOXI_MERGED 
-70  Deep Impact IMPACTOR Spacecraft   2005-Jun-01 00:00 to 2005-Jul-04 05:46   DEEP_IMPACT_IMPACTOR 
-30  Deep Space 1 Spacecraft   1998-Oct-24 18:00 to 2003-Dec-31 00:00   DS1-FINAL.020114 
-23230  ETS-6 Spacecraft   1994-Aug-28 01:36 to 2007-Aug-13 22:27   ETS-6.MERGED 
-127783  GALEX Spacecraft   2003-Oct-19 12:21 to 2009-Apr-02 10:22   GALEX 
-344  Galileo Probe   1995-Jul-13 05:32 to 1995-Dec-07 22:07   GALILEO_PROBE.S960730A 
-77  Galileo Spacecraft   1989-Oct-19 01:30 to 2003-Sep-30 12:00   GALILEO.MERGED 
-47900  Genesis (SRC) Spacecraft   2004-Aug-09 15:11 to 2004-Sep-08 16:00   GENESIS_SRC-47900.20040809-20040908_OUT 
-47  Genesis (bus) Spacecraft   2004-Aug-09 15:11 to 2020-Jan-02 00:00   GENESIS_BUS-47.20040809-20200102 
-78  Giotto Spacecraft Flyby   1999-Jun-01 00:00 to 1999-Aug-01 00:00   GIOTTO_EARTH_FLYBY 
-130  Hayabusa Spacecraft   2004-Apr-01 15:02 to 2004-Jun-01 00:04   HAYABUSA_RECON_PFILE_040401_040601 
-486  Herschel Space Observatory (Spacecraft)   2009-May-14 13:40 to 2014-Feb-07 02:18   HERSCHEL 
-48  Hubble Space Telescope   1990-Apr-25 14:02 to 2009-Apr-01 10:20   HUBBLE 
-198  INTEGRAL Spacecraft   2002-Oct-17 16:11 to 2005-Jan-31 02:29   INTEGRAL.MERGED 
-125544  ISS-1 Spacecraft   2006-Apr-29 06:51 to 2008-Nov-05 10:52   ISS 
-64  Infrared Space Observatory   1995-Nov-17 00:38 to 1998-Jul-16 03:01   ISO_1 
-61  Juno Spacecraft   2011-Aug-18 16:12 to 2017-Oct-16 18:40   JUNO_TRIMMED 
-227  Kepler (Spacecraft)   2009-Mar-07 04:57 to 2013-Apr-16 23:59   KEPLER.MERGED 
-134381  Kepler Booster (Third Stage)   2009-Mar-07 04:54 to 2009-May-01 00:04   KEPLER_THIRD_STAGE 
-18  LCROSS Spacecraft   2009-Jun-02 21:36 to 2009-Oct-07 09:36   LCROSS 
-25  Lunar Prospector (LP) Spacecraft   1998-Jan-07 03:45 to 1998-Jan-20 00:04   LP_TRANSFER-LOI 
-236  MESSENGER Spacecraft   2004-Aug-03 07:15 to 2012-Apr-01 06:31   MESSENGER 
-74900  MRO Centaur Stage Spacecraft   2005-Aug-12 13:38 to 2005-Aug-29 00:00   MRO_PFILE_CENTAUR 
-41  Mars Express Spacecraft   2003-Jun-09 20:43 to 2010-Feb-16 23:59   MEX.MERGED 
-53  Mars Odyssey Spacecraft   2001-Apr-07 16:26 to 2001-Nov-01 12:00   SPK_C_010407-010411 
-74  Mars Reconnaissance Orbiter Spacecraft   2005-Aug-12 12:44 to 2006-Mar-12 00:01   MRO_MERGED 
-93  NEAR Spacecraft   1996-May-31 00:00 to 2001-Feb-12 19:45   NEAR_CURRENT 
-997  NEOCP 6Q0B44E   2004-Jan-01 00:00 to 2009-Jan-01 00:00   NEOCP_6Q0B44E_32 
-996  NEOCP 6R10DB9   2006-Jan-01 00:00 to 2008-Jan-01 00:00   NEOCP_6R10DB9_37 
-998  NEOCP J002E3   2003-Mar-01 00:00 to 2004-Jan-01 00:00   J002E3 
-98  New Horizons Spacecraft   2006-Jan-19 19:52 to 2015-Sep-25 02:06   NH_REF_20060119_20150925_V04 
-178  Nozomi Spacecraft   2003-May-20 00:00 to 2003-Dec-13 00:00   NOZOMI 
-253  Opportunity Spacecraft   2003-Jul-09 19:41 to 2004-Jan-25 04:49   MER_OPPORTUNITY 
-84  Phoenix Spacecraft   2007-Aug-04 10:48 to 2008-May-25 23:31   PHOENIX 
-23  Pioneer 10 Spacecraft   1972-Mar-03 02:05 to 2050-Jan-01 00:10   PIONEER_10.MERGED 
-24  Pioneer 11 Spacecraft   1973-Apr-06 02:26 to 2050-Jan-01 00:10   PIONEER_11.MERGED 
-6  Pioneer 6 Spacecraft   1996-Jan-01 00:02 to 1999-Dec-30 00:01   PIO6-A 
-20  Pioneer 8 Spacecraft   1997-Jul-01 00:02 to 1999-Dec-30 23:59   PIONEER8-SETI 
-489  Planck Space Observatory (Spacecraft)   2009-May-14 13:42 to 2012-Aug-03 16:35   PLANCK 
-226  Rosetta (Spacecraft)   2004-Mar-02 09:27 to 2014-May-23 01:43   ROSETTA_MERGED 
-234900  STEREO Third Stage (spacecraft)   2006-Oct-26 00:54 to 2006-Nov-06 00:49   STEREO_MERGED_REAL_3RD_STAGE 
-234  STEREO-A Spacecraft   2006-Oct-26 00:02 to 2029-Jun-18 00:01   STEREO-A_MERGED 
-235  STEREO-B Spacecraft   2006-Oct-26 01:02 to 2029-Jun-17 00:01   STEREO-B_MERGED 
-254  Spirit Spacecraft   2003-Jun-10 18:32 to 2004-Jan-06 11:09   MER_SPIRIT.MERGED 
-79  Spitzer Space Telescope   2003-Aug-25 06:27 to 2015-Jan-01 00:06   SST.CURRENT 
-29900  Stardust (SRC) Spacecraft   2005-Dec-28 00:00 to 2006-Jan-15 10:05   SDU_SRC_060111 
-29  Stardust (bus) Spacecraft   1999-Feb-07 21:33 to 2011-Mar-13 00:00   STARDUST.BUS.MERGED 
-55  Ulysses Spacecraft   1990-Oct-06 19:06 to 2015-Dec-31 12:00   ULYSSES_MERGED 
-248  Venus Express Spacecraft   2005-Nov-09 05:06 to 2009-Jul-17 00:00   VEX.MERGED 
-31  Voyager I Spacecraft   1977-Sep-05 14:00 to 2021-Jan-01 00:00   VOYAGER_1.ST+1991_A54418U.MERGED 
-32  Voyager II Spacecraft   1977-Aug-20 15:33 to 2021-Jan-05 00:00   VOYAGER_2.ST+1992_M05208U.MERGED 
-163  WISE Spacecraft   2009-Nov-01 15:12 to 2010-Jan-01 00:06   WISE_GDL_ASCNODE_SOAP 
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