PNTFIX3

Name

pntfix3

Purpose (one Line)

Compute the pointing correction as used by MOVE at Anderson Mesa

Description

Calling Sequence

pntfix3,coefs,haobs,decobs,hafix,decfix,dha,ddec

Inputs

coefs - Pointing coefficients.
coefs(0) - Zero point in dec (")
coefs(1) - Zero point in ra (")
coefs(2) - Angle between true and instrumental poles (")
coefs(3) - Angle between line of pole and true meridian (deg)
coefs(4) - Telescope tube droop in HA and DEC (")
coefs(5) - Angle between optical and telescope tube axes (")
coefs(6) - Mechanical orthogonality of RA and Dec Axes (")
coefs(7) - Dec axis flexure (")
coefs(8) - HA encoder scale error ("/degree)
coefs[9] - HA*Dec term
coefs[10]- HA^2 term
haobs - Observed hour angle of telescope in degrees
decobs - Observed declination of telescope in degrees

Optional Input Parameters

Keyword Parameters

Outputs

hafix - Corrected (true) hour angle of telescope in degrees
decfix - Corrected (true) declination of telescope in degrees
dha - Correction to hour angle in arc-sec on the sky
ddec - Correction to declination in arc-sec

Common Blocks

Side Effects

Restrictions

The latitude and longitude of Anderson Mesa (42" actually) is
hardcoded into this procedure.

Procedure

Modification History

2/11/93 - Written by Marc W. Buie from notes provided by Nat White.