Horizons System
Horizons Available Time Spans
This page shows the maximum available Horizons ephemeris time spans for each group of bodies selected from the adjacent list. Data are available only for bodies accessible via Horizons. The time-spans available are shown below in the Barycentric Dynamical Time (TDB) scale (the uniform time scale and independent variable of the ephemerides), not UT.
All times are shown as
YYYY-MM-DD hh:mm or
YYYY-MM-DD hh:mm:ss
(where ss may have 0 to 3 decimal digits).
Select a group of interest from the adjacent list to display available time spans.
| Name | Available Time Span |
|---|---|
| all small-bodies | [[ results.cd_min ]] - [[ results.cd_max ]] |
| ID | Name | jd_min | Start of Interval | jd_max | End of Interval |
|---|
(includes satellites of dwarf planet Pluto)
