from
Universal Elements SLA_PLANTU
CALL sla_PLANTU (DATE, ELONG, PHI, U, RA, DEC, R, JSTAT)
DATE | D | TT MJD of observation (JD2400000.5) |
|
||
ELONG,PHI | D | observer’s longitude (east +ve) and latitude |
|
||
|
| radians) |
U | D(13) | universal orbital elements |
|
||
(1) |
| combined mass () |
(2) |
| total energy of the orbit () |
(3) |
| reference (osculating) epoch () |
(4-6) |
| position at reference epoch () |
(7-9) |
| velocity at reference epoch () |
(10) |
| heliocentric distance at reference epoch |
(11) |
|
|
(12) |
| date () |
(13) |
| universal eccentric anomaly () of date, approx |
RA,DEC | D | topocentric apparent (radians) |
| ||
R | D | distance from observer (AU) |
| ||
JSTAT | I | status: |
| ||
|
| 0 = OK |
|
||
|
| 1 = radius vector zero |
|
||
|
| 2 = failed to converge |