NOTE: This special Phobos/Deimos file is NOT an official SSD product. It has NOT been validated and it is NOT based on any normal data processing techniques. Any use of this file is to be done with extreme CAUTION. File was made ONLY for possible use by MEX to observe Phobos during the period covered by the file. File was made by simply changing the Phobos mean longitude consistent with a single number provided by Tom Duxbury, using results from MER observations. C. Acton 6/14/2004 Satellite Ephemeris File Release Satellite Ephemeris: MARXXX Location: ssd.jpl.nasa.gov/pub/eph/satellites/nio/marexp.nio Size(nio): 24576 bytes Enter SATGEN/7 11-JUN-2004 12:41:05 linked 28-JAN-1999 15:29:17 Ephemeris for Mars Express with advanced Phobos longitude Ephemeris Version Number: 7 Timespan from JED 2453208.500(22-JUL-2004) to JED 2453217.500(31-JUL-2004) File Epoch Julian Date: 2433282.50 Master Interval: 9.0000 Days Equinox Reference Julian Date: 2451545.00 Planetary Ephemeris Number: DE-0405/LE-0405 Bodies on the File: Name Number GM NDIV NDEG Model Phobos 401 6.900000000000000E-04 21 15 MARROG Deimos 402 1.200000000000000E-04 4 15 MARROG Mars 499 4.282831000000000E+04 1 2 MARROG System 4.282831081000000E+04 Additional Constants on the File: AU 1.495978706910000E+08 RADIUS 3.394200000000000E+03 J402 1.958744236927738E-03 J404 -1.544758500000000E-05 J406 -4.809812929590655E-06 POLTIM 2.451545000000000E+06 ZACPL4 3.176810000000000E+02 ZDEPL4 5.288600000000000E+01 DACPL4 -1.082634477472879E-01 DDEPL4 -6.145938682503714E-02 WPL4 1.768680000000000E+02 WDP4 3.508919830000000E+02 J403 3.150092540660739E-05 J405 5.848879915442181E-06 J407 -5.044821990079402E-06 J408 -4.436044287664986E-07 C40201 4.800265282192135E-09 S40201 8.433782202002733E-09 C40202 -5.442562507653622E-05 S40202 3.207439707968164E-05 C40301 4.149159315808776E-06 S40301 2.730396370566899E-05 C40302 -5.438445464054723E-06 S40302 2.880981952778337E-06 C40303 4.938440449888407E-06 S40303 3.508686713137301E-06 C40401 4.055607395939038E-06 S40401 3.503672289945575E-06 C40402 -2.507508521175496E-07 S40402 -2.005652604558221E-06 C40403 3.867691075800419E-07 S40403 -1.464301447639094E-08 C40404 2.243073658508141E-09 S40404 -2.716835353360919E-07 Ephemeris Accuracy (km,sec) - 1 sigma: Name Radial Downtrack Normal Period Phobos 3.000 15.000 7.000 0.000100 Deimos 3.000 30.000 16.000 0.000400 Chebyshev interpolation error: 50.0 meters Release to: NAIF Time: 11-Jun-2004 12:44: 5 Preparer: R. A. Jacobson Comments: Special ephemeris with Phobos longitude advanced 10 km (5sec). Not for general distribution.