SLA_PVOBS - Observatory Position & Velocity

ACTION:

Position and velocity of an observing station.

CALL:

CALL sla_PVOBS (P, H, STL, PV)

GIVEN:

P	D	latitude (geodetic, radians)
H	D	height above reference spheroid (geodetic, metres)
STL	D	local apparent sidereal time (radians)

RETURNED:

PV

D(6)

$[\,x,y,z,\dot{x},\dot{y},\dot{z}\,]$ (AU, AU s$^{-1}$, true equator and equinox of date)

NOTE:

IAU 1976 constants are used.