Bi-monthly release with minor bug fixes and improvements
Date__(UT)__HR:MN dRA*cosD d(DEC)/dt
2019-May-23 00:00 * 29.25040 -38.5810
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Ephemeris / WWW_USER Thu May 23 03:01:37 2019 Pasadena, USA / Horizons
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Target body name: 123P/West-Hartley {source: JPL#K192/3}
Center body name: Earth (399) {source: DE431}
Center-site name: (user defined site below)
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Start time : A.D. 2019-May-23 00:00:00.0000 UT
Stop time : A.D. 2019-Jun-22 00:00:00.0000 UT
Step-size : 1440 minutes
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Target pole/equ : No model available
Target radii : (unavailable)
Center geodetic : 284.330000,45.4200000,0.0000000 {E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 284.330000,4484.46453,4520.2328 {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: DE431}
Rel. light bend : Sun, EARTH {source: DE431}
Rel. lght bnd GM: 1.3271E+11, 3.9860E+05 km^3/s^2
Small-body perts: Yes {source: SB431-N16}
Atmos refraction: NO (AIRLESS)
RA format : HMS
Time format : CAL
EOP file : eop.190522.p190813
EOP coverage : DATA-BASED 1962-JAN-20 TO 2019-MAY-22. PREDICTS-> 2019-AUG-12
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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Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.):
EPOCH= 2457126.5 ! 2015-Apr-14.0000000 (TDB) RMSW= n.a.
EC= .449300743971303 QR= 2.125967382318402 TP= 2455748.0628062398
OM= 46.53866425047554 W= 102.894694868525 IN= 15.35366879558836
Equivalent ICRF heliocentric equatorial cartesian coordinates (au, au/d):
X= 4.657105285458996E+00 Y=-1.941203038292526E+00 Z=-2.417870194368305E+00
VX= 2.829504245640315E-03 VY= 4.087231519282237E-03 VZ= 2.101437381881136E-03
Comet physical (GM= km^3/s^2; RAD= km):
GM= n.a. RAD= n.a.
M1= 8.2 M2= 13.8 k1= 18. k2= 5. PHCOF= .030
Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au):
AMRAT= 0. DT= 0.
A1= -2.738727331161E-9 A2= 7.358073592186E-9 A3= 0.
Standard model:
ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808
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Date__(UT)__HR:MN dRA*cosD d(DEC)/dt
*****************************************
$$SOE
2019-May-23 00:00 * 29.25040 -38.5810
2019-May-24 00:00 * 29.85669 -38.5969
2019-May-25 00:00 * 30.45272 -38.6091
2019-May-26 00:00 * 31.03869 -38.6178
2019-May-27 00:00 * 31.61476 -38.6231
2019-May-28 00:00 * 32.18106 -38.6252
2019-May-29 00:00 * 32.73773 -38.6242
2019-May-30 00:00 * 33.28488 -38.6202
2019-May-31 00:00 * 33.82260 -38.6134
2019-Jun-01 00:00 * 34.35094 -38.6037
2019-Jun-02 00:00 * 34.86987 -38.5912
2019-Jun-03 00:00 * 35.37933 -38.5760
2019-Jun-04 00:00 *m 35.87914 -38.5580
2019-Jun-05 00:00 *m 36.36908 -38.5373
2019-Jun-06 00:00 *m 36.84890 -38.5137
2019-Jun-07 00:00 *m 37.31837 -38.4874
2019-Jun-08 00:00 *m 37.77730 -38.4582
2019-Jun-09 00:00 *m 38.22559 -38.4262
2019-Jun-10 00:00 *m 38.66329 -38.3915
2019-Jun-11 00:00 *m 39.09052 -38.3541
2019-Jun-12 00:00 *m 39.50754 -38.3143
2019-Jun-13 00:00 *m 39.91468 -38.2721
2019-Jun-14 00:00 *m 40.31235 -38.2277
2019-Jun-15 00:00 *m 40.70099 -38.1814
2019-Jun-16 00:00 *m 41.08109 -38.1333
2019-Jun-17 00:00 * 41.45310 -38.0835
2019-Jun-18 00:00 * 41.81747 -38.0322
2019-Jun-19 00:00 * 42.17459 -37.9795
2019-Jun-20 00:00 * 42.52481 -37.9256
2019-Jun-21 00:00 * 42.86841 -37.8705
2019-Jun-22 00:00 * 43.20564 -37.8143
$$EOE
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