SLA_AOPPAT

Update Appt-to-Obs Parameters

ACTION:
Recompute the sidereal time in the apparent to observed place star-independent parameter block.
CALL:
CALL sla_AOPPAT (DATE, AOPRMS)
GIVEN:

DATE

D

UTC date/time (Modified Julian Date, JD−2400000.5)

AOPRMS

D(14)

star-independent apparent-to-observed parameters:

(1-12)

not required

(13)

longitude + eqn of equinoxes + “sidereal ΔUT” (radians)

(14)

not required


RETURNED:

AOPRMS

D(14)

star-independent apparent-to-observed parameters:

(1-13)

not changed

(14)

local apparent sidereal time (radians)


NOTE:
For more information, see sla_AOPPA.