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Example Ephemeris

The text below shows what a typical ephemeris generated by HORIZONS should look like - it was copied and pasted directly out of a browser window. Ephemerides that do not conform to this format cannot be guaranteed to run correctly and are likely to be rejected by the OT.

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 Revised: Sep 28, 2012                 Mars                             499 / 4
 
 GEOPHYSICAL DATA (updated 2009-May-26):
  Mean radius (km)      = 3389.9(2+-4)    Density (g cm^-3)     =  3.933(5+-4)
  Mass (10^23 kg )      =    6.4185       Flattening, f         =  1/154.409
  Volume (x10^10 km^3)  =   16.318        Semi-major axis       =  3397+-4
  Sidereal rot. period  =   24.622962 hr  Rot. Rate (x10^5 s)   =  7.088218
  Mean solar day        =    1.0274907 d  Polar gravity ms^-2   =  3.758
  Mom. of Inertia       =    0.366        Equ. gravity  ms^-2   =  3.71
  Core radius (km)      =  ~1700          Potential Love # k2   =  0.153 +-.017
 
  Grav spectral fact u  =   14 (x10^5)    Topo. spectral fact t = 96 (x10^5)
  Fig. offset (Rcf-Rcm) = 2.50+-0.07 km   Offset (lat./long.)   = 62d / 88d
  GM (km^3 s^-2)        = 42828.3         Equatorial Radius, Re = 3394.0 km 
  GM 1-sigma (km^3 s^-2)= +- 0.1          Mass ratio (Sun/Mars) = 3098708+-9
  
  Atmos. pressure (bar) =    0.0056       Max. angular diam.    =  17.9"
  Mean Temperature (K)  =  210            Visual mag. V(1,0)    =  -1.52
  Geometric albedo      =    0.150        Obliquity to orbit    =  25.19 deg
  Mean sidereal orb per =    1.88081578 y Orbit vel.  km/s      =  24.1309
  Mean sidereal orb per =  686.98 d       Escape vel. km/s      =   5.027
  Hill's sphere rad. Rp =  319.8          Mag. mom (gauss Rp^3) = < 1x10^-4 
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Ephemeris / WWW_USER Tue Jan 30 10:28:51 2018 Pasadena, USA      / Horizons    
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Target body name: Mars (499)                      {source: mar097}
Center body name: Earth (399)                     {source: mar097}
Center-site name: Atacama Large mm/sub-mm Array (ALMA) Center of Array
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Start time      : A.D. 2018-Jan-30 00:00:00.0000 UT      
Stop  time      : A.D. 2018-Mar-01 00:00:00.0000 UT      
Step-size       : 1440 minutes
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Target pole/equ : IAU_MARS                        {East-longitude -}
Target radii    : 3396.2 x 3396.2 x 3376.2 km     {Equator, meridian, pole}    
Center geodetic : 292.245252,-23.029211,5.0748870 {E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 292.245252,5877.51430,-2481.682 {E-lon(deg),Dxy(km),Dz(km)}
Center pole/equ : High-precision EOP model        {East-longitude +}
Center radii    : 6378.1 x 6378.1 x 6356.8 km     {Equator, meridian, pole}    
Target primary  : Sun
Vis. interferer : MOON (R_eq= 1737.400) km        {source: mar097}
Rel. light bend : Sun, EARTH                      {source: mar097}
Rel. lght bnd GM: 1.3271E+11, 3.9860E+05 km^3/s^2                              
Atmos refraction: NO (AIRLESS)
RA format       : HMS
Time format     : CAL 
EOP file        : eop.180129.p180422                                           
EOP coverage    : DATA-BASED 1962-JAN-20 TO 2018-JAN-29. PREDICTS-> 2018-APR-21
Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s 
Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO )
Table cut-offs 2: Solar elongation (  0.0,180.0=NO ),Local Hour Angle( 0.0=NO )
Table cut-offs 3: RA/DEC angular rate (     0.0=NO )                           
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 Date__(UT)__HR:MN     R.A.___(ICRF/J2000.0)___DEC            delta      deldot
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$$SOE
 2018-Jan-30 00:00 Nm  15 59 41.0140 -19 52 58.001 1.69012890950555 -16.4047154
 2018-Jan-31 00:00 Nm  16 02 13.9344 -20 00 49.316 1.68065273701720 -16.4315182
 2018-Feb-01 00:00 Nm  16 04 46.9910 -20 08 32.388 1.67116263439759 -16.4578308
 2018-Feb-02 00:00 N   16 07 20.1797 -20 16 07.180 1.66165885933844 -16.4837117
 2018-Feb-03 00:00 N   16 09 53.4950 -20 23 33.652 1.65214165816682 -16.5091433
 2018-Feb-04 00:00 N   16 12 26.9305 -20 30 51.763 1.64261130602959 -16.5340475
 2018-Feb-05 00:00 N   16 15 00.4785 -20 38 01.471 1.63306813488797 -16.5583104
 2018-Feb-06 00:00 N   16 17 34.1309 -20 45 02.735 1.62351254693340 -16.5818067
 2018-Feb-07 00:00 N   16 20 07.8790 -20 51 55.514 1.61394501613931 -16.6044157
 2018-Feb-08 00:00 N   16 22 41.7137 -20 58 39.769 1.60436608279390 -16.6260295
 2018-Feb-09 00:00 N   16 25 15.6255 -21 05 15.460 1.59477634547688 -16.6465546
 2018-Feb-10 00:00 N   16 27 49.6049 -21 11 42.553 1.58517645345463 -16.6659091
 2018-Feb-11 00:00 N   16 30 23.6422 -21 18 01.014 1.57556710093827 -16.6840191
$$EOE
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The ALMA OT Team, 2018 Sep 25