NEW 2016-01-04: Beta release 2.9 ported to a new server.
Please report any problems to Mark Showalter.
For a limited time,
Neptune Viewer 2.8 will remain available.
Click here for help, or click on
individual highlighted items.
Current ephemeris selection is NEP081 + NEP088 + DE430.
Arc motion model:
#1 (820.1194 deg/day)
#2 (820.1118 deg/day)
#3 (820.1121 deg/day)
Last updated 4 January 2016.