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Summary ephemerides
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Ephemerides
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Parameters and constants
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Ephemerides with constant step on time
Ephemerides and (O-C) for a file of dates and positions
MULTISAT. Ephemerides of planets and natural satellites.
Ephemerides and (O-C) for a file of dates and positions
Moon
Choose the planetary ephemerides:
INPOP19a
INPOP17a
INPOP13C
EPM2021
DE441
DE431
DE405
DE406
DE200
VSOP87
Enter Observatory code (XXX)
(500 for geocenter) See
the list
Choose Epoch of equator and equinox
ICRF
FK5
J2000
Mean of Date (IAU1976)
True of Date (IAU1976, IAU1980)
Apparent (IAU1976, IAU1980)
B1950
B1900
Mean of Date (Newcomb)
Mean of Jan 1 of the year (Newcomb)
True of Date (Newcomb, IAU1948)
Apparent (Newcomb, IAU1948)
(
Description
)
Choose Time Scale:
UTC
TT
For your observations
choose format of the moment
Year month day hour min sec.decimals
Year month day.decimals
JD (Julian Day)
MJD (Modified Julian Day)
and format of the data
Alpha (h,m,s.decimals), Delta (°,',".decimals)
Alpha (h.decimals), Delta (deg.decimals)
Topoc.alt.,azim.of sat.,alt.,azim.of the Sun
Dist.Sun.-Plan.,app.plan.R,Phase,magn.of sat.
(
Explications
)
Choose operation :
or
Enter your results to calculate O-C
Enter a set of dates to generate ephemerides
In each line enter your observations (one observations/date per line)
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