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Summary ephemerides
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Ephemerides with constant step on time
Ephemerides and (O-C) for a file of dates and positions
Show image
Natural Satellites Ephemeride Server. MULTI-SAT.
Ephemerides with constant step on time
Satellites of Neptune
Choose satellites theory version for Triton:
by Emelyanov et al. (2015)
by Jacobson (2009)
by Zhang et al. (2014)
Choose Satellite
N1 Triton
N2 Nereid
N3 Naiade
N4 Thalassa
N5 Despina
N6 Galatea
N7 Larissa
S/2004_N1
N8 Proteus
N9 Halimede (S/2002_N1)
N11 Sao (S/2002_N2)
N12 Laomedeia (S/2002_N3)
N13 Neso (S/2002_N4)
N10 Psamathe (S/2003_N1)
Center of Neptune
Neptunian system barycenter
of Neptune
Relative to
geoequator and equinox
Center of Neptune
N1 Triton
N2 Nereid
N3 Naiade
N4 Thalassa
N5 Despina
N6 Galatea
N7 Larissa
S/2002_N1
N8 Proteus
N9 Halimede (S/2002_N1)
N11 Sao (S/2002_N2)
N12 Laomedeia (S/2002_N3)
N13 Neso (S/2002_N4)
N10 Psamathe (S/2003_N1)
Choose planet theory version:
INPOP13C
INPOP10
INPOP08
EPM2015
DE431
DE421
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
Choose format of initial moment
Year month day hour min sec.decimals
Year month day.decimals
JD (Julian Day)
MJD (Modified Julian Day)
Enter initial moment
Choose the step unit
day
hours
the step value
the number of steps
Choose type of output data
Alpha (h,m,s.decimals), Delta (°,',".decimals)
Alpha (h.decimals), Delta (deg.decimals)
Alpha, Delta, dA/dt, dD/dt, R topo, V radial
Diff. X, Y (arcsec)
Diff. S(arcsec), Position angle (degrees)
Diff. Inclination (deg), A, B (arcsec)
Tang. X, Y (arcsec)
Tang. S(arcsec), Position angle (degrees)
Tang. Inclination (deg), A, B (arcsec)
Delta(Alpha), Delta(Delta) (arcsec)
x, y, z, Vx, Vy, Vz Geo-equatorial
x, y, z, Vx, Vy, Vz Geo-ecliptic
x, y, z, Vx, Vy, Vz Planet-equatorial
R, Alpha, Delta Geo-planetocentric
Kepler osculat. orbit(geo-equat.)
Kepler osculat. orbit(geo-eclipt.)
Kepler osculat. orbit(planeto-equat.)
Plan-equat.lat.,long.,sideral of sat.
Plan-equat.lat.Earth.,lat.long.synodic of sat.
Plan-equat.lat.Sun,lat.long.heliocentr.of sat.
Topoc.alt.,azim.of sat.,alt.,azim.of the Sun
Dist.Sun.-Plan.,app.plan.R,Phase,magn.of sat.
get precision if available
do not output if the altitude is less than
or if the sun is above the horizon
0°
10°
12°
20°
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Explication
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