8 lines
68 KiB
Plaintext
8 lines
68 KiB
Plaintext
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DAF/SPK SMB_SPK_FILE > > «! LTL-IEEE FTPSTR:
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:�:Î:ENDFTP IMPORTANT: This informal file release should not be used for purposes affecting the safety and success of spacecraft hardware or missions without first contacting the JPL Solar System Dynamics Group. Contact information is below. This is because an objects' orbit solution may be insufficiently determined over the chosen time-span to be suitable for some high-precision purposes. This can be due to the quantity of measurements available for an object, the time-span they cover, and the objects' dynamical path. Although not stored in this file, statistical uncertainty of the trajectory as a function of time is available from the JPL Horizons system for most asteroids and comets. This can help interpret the accuracy of the trajectory. Orbit solutions are updated in Horizons as new measurements are reported. Therefore, this trajectory may be superceded by more recent solutions. Check the orbit solution number for an object (given below as "source") against the latest Horiz ons entry to determine if an updated orbit solution is available. This numerically integrated trajectory includes perturbations caused by planets, Earth's Moon, the 16 largest asteroid masses, parameterized post-Newtonian (relativistic) solar perturbation, Earth oblateness, and any non-gravitational acceleration models present in the orbit solution such as outgassing or thermal re-radiation acceleration. It was produced by: Horizons On-Line Ephemeris System Solar System Dynamics Group Jet Propulsion Laboratory 4800 Oak Grove Drive Pasadena, CA 91109 USA Horizons information & documentation: https://ssd.jpl.nasa.gov/horizons/ Connection methods for small-body SPK generation: (1) API documentation (recommended for automation): https://ssd-api.jpl.nasa.gov/doc/horizons.html (2) Browser form (individual object requests): https://ssd.jpl.nasa.gov/horizons/app.html#/ (3) Interactive UNIX/Linux command-line connection: telnet ssd .jpl.nasa.gov 6775 (4) Telnet automation script https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS/smb_spk Inquiries: E-mail: Jon.D.Giorgini@jpl.nasa.gov phone : 818-393-3107 SPK file contents: OBJECT #01 ========== Requested by : 45.67.200.245 Execution date : Thu Oct 8 10:14:26 2026 (Pasadena time) Target body : 1 Ceres (A801 AA) {source: Horizons_SPK:JPL#48} Target SPK ID : 20000001 Coord center : Sun ( 10) {source: DE-0441LE-0441} Small-body perts: Yes {source: SB441-N16} Start time : A.D. 2026-Jan-01 00:00:00.0000 TDB Stop time : A.D. 2026-Jan-03 00:00:00.0000 TDB ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2458849.5 ! 2020-Jan-01.00 (TDB) Residual RMS= .24563 EC= .07687465013145245 QR= 2.556401146697176 TP= 2458240.1791309435 OM= 80.30119019 17491 W= 73.80896808746482 IN= 10.59127767086216 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.007608869613381E+00 Y=-2.390064275223502E+00 Z=-1.332124522752402E+00 VX= 9.201724467227128E-03 VY= 3.370381135398406E-03 VZ=-2.850337057661093E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= 62.6284 RAD= 469.7 ROTPER= 9.07417 H= 3.34 G= .120 B-V= .713 ALBEDO= .090 STYP= C
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