SLA_DTF2R - Hour,Min,Sec to Radians

ACTION:

Convert hours, minutes, seconds to radians (double precision).

CALL:

CALL sla_DTF2R (IHOUR, IMIN, SEC, RAD, J)

GIVEN:

IHOUR	I	hours
IMIN	I	minutes
SEC	D	seconds

RETURNED:

RAD	D	angle in radians
J	I	status:
		0 = OK
		1 = IHOUR outside range 0-23
		2 = IMIN outside range 0-59
		3 = SEC outside range 0-59.999$\cdots$

NOTES:

1. The result is computed even if any of the range checks fail.
2. The sign must be dealt with outside this routine.