Ephemeris Options (applicable only if selecting ephemeris return):
By default, ephemerides are geocentric, begin now and are for 20 days at 1
day intervals.
Ephemeris start date: Number of dates to output
Ephemeris interval: Ephemeris units: days hours minutes seconds
For daily ephemerides, enter desired offset from 0h UT: hours
You may enter an observatory code (ground-based only) or your observing site's coordinates:
Observatory code :
Longitude ° E,
latitude °,
altitude m.
Longitudes and latitudes should be entered in decimal degrees.
Display R.A./Decl. positions in: truncated sexagesimal or
full sexagesimal or
decimal units
heliocentric position vector
heliocentric position/velocity vector
geocentric position vector
Total motion and direction
Separate R.A. and Decl. coordinate motions
Separate R.A. and Decl. sky motions
Display motions as: "/sec "/min "/hr °/day
Suppress output if sun above local horizon
Suppress output if object below local horizon
Output data for photometric reductions
Generate perturbed ephemerides for unperturbed orbits
Measure azimuths:
westwards from the south meridian
eastwards from the north meridian
Also display elements for epoch
If you select 8-line MPC format, you may display the residual block for the
objects selected:
The default base URL is null.
Title for document:
Base URL for document:
All objects should be selected or unselected by default.
Lists of objects and software types should be centered or uncentered.
Return list of objects or link to summary page.
Note that the returned document will require you to add some
introductory remarks. Default text for this is supplied, but should be
replaced.