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 the HORIZONS format will be rejected by the OT.
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Revised: June 21, 2016 Mars 499 / 4
PHYSICAL DATA (updated 2019-Oct-29):
Vol. mean radius (km) = 3389.92+-0.04 Density (g/cm^3) = 3.933(5+-4)
Mass x10^23 (kg) = 6.4171 Flattening, f = 1/169.779
Volume (x10^10 km^3) = 16.318 Equatorial radius (km)= 3396.19
Sidereal rot. period = 24.622962 hr Sid. rot. rate, rad/s = 0.0000708822
Mean solar day (sol) = 88775.24415 s Polar gravity m/s^2 = 3.758
Core radius (km) = ~1700 Equ. gravity m/s^2 = 3.71
Geometric Albedo = 0.150
GM (km^3/s^2) = 42828.375214 Mass ratio (Sun/Mars) = 3098703.59
GM 1-sigma (km^3/s^2) = +- 0.00028 Mass of atmosphere, kg= ~ 2.5 x 10^16
Mean temperature (K) = 210 Atmos. pressure (bar) = 0.0056
Obliquity to orbit = 25.19 deg Max. angular diam. = 17.9"
Mean sidereal orb per = 1.88081578 y Visual mag. V(1,0) = -1.52
Mean sidereal orb per = 686.98 d Orbital speed, km/s = 24.13
Hill's sphere rad. Rp = 319.8 Escape speed, km/s = 5.027
Perihelion Aphelion Mean
Solar Constant (W/m^2) 717 493 589
Maximum Planetary IR (W/m^2) 470 315 390
Minimum Planetary IR (W/m^2) 30 30 30
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Ephemeris / WWW_USER Wed Feb 26 02:44:17 2020 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. 2020-Feb-26 00:00:00.0000 UT
Stop time : A.D. 2020-Mar-27 00:00:00.0000 UT
Step-size : 20 minutes
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Target pole/equ : IAU_MARS {West-longitude positive}
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 positive}
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
RTS-only print : NO
EOP file : eop.200212.p200505
EOP coverage : DATA-BASED 1962-JAN-20 TO 2020-FEB-12. PREDICTS-> 2020-MAY-04
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)_________DEC delta deldot
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$$SOE
2020-Feb-26 00:00 Am 18 27 26.444179 -23 37 59.47962 1.74527309827464 -14.1434211
2020-Feb-26 00:20 Am 18 27 28.983357 -23 37 58.60534 1.74515951510102 -14.1774174
2020-Feb-26 00:40 m 18 27 31.522745 -23 37 57.74278 1.74504565810281 -14.2116532
2020-Feb-26 01:00 18 27 34.062118 -23 37 56.89199 1.74493152640344 -14.2458679
2020-Feb-26 01:20 18 27 36.601251 -23 37 56.05289 1.74481712121645 -14.2798013
2020-Feb-26 01:40 18 27 39.139922 -23 37 55.22531 1.74470244583624 -14.3131951
2020-Feb-26 02:00 18 27 41.677912 -23 37 54.40897 1.74458750561302 -14.3457953
2020-Feb-26 02:20 18 27 44.215007 -23 37 53.60348 1.74447230791205 -14.3773539
2020-Feb-26 02:40 18 27 46.750998 -23 37 52.80837 1.74435686205759 -14.4076306
2020-Feb-26 03:00 18 27 49.285688 -23 37 52.02304 1.74424117926187 -14.4363953
$$EOE
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