SLA_PDQ2H

H.A. for a Given P.A.

ACTION:
Hour Angle corresponding to a given parallactic angle (double precision).
CALL:
CALL sla_PDQ2H (P, D, Q, H1, J1, H2, J2)
GIVEN:

P

D

latitude

D

D

declination

Q

D

azimuth


RETURNED:

H1

D

hour angle: first solution if any

J1

I

flag: 0 = solution 1 is valid

H2

D

hour angle: second solution if any

J2

I

flag: 0 = solution 2 is valid