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author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
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committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
tree | 4464880c571602d54f6ae114729bf62a89518057 /math/slalib/doc/subet.hlp | |
download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'math/slalib/doc/subet.hlp')
-rw-r--r-- | math/slalib/doc/subet.hlp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/math/slalib/doc/subet.hlp b/math/slalib/doc/subet.hlp new file mode 100644 index 00000000..42d74ccf --- /dev/null +++ b/math/slalib/doc/subet.hlp @@ -0,0 +1,41 @@ +.help subet Jun99 "Slalib Package" +.nf + + SUBROUTINE slSUET (RC, DC, EQ, RM, DM) + + - - - - - - + S U E T + - - - - - - + + Remove the E-terms (elliptic component of annual aberration) + from a pre IAU 1976 catalogue RA,Dec to give a mean place + (double precision) + + Given: + RC,DC dp RA,Dec (radians) with E-terms included + EQ dp Besselian epoch of mean equator and equinox + + Returned: + RM,DM dp RA,Dec (radians) without E-terms + + Called: + slETRM, slDS2C, sla_,DVDV, slDC2S, slDA2P + + Explanation: + Most star positions from pre-1984 optical catalogues (or + derived from astrometry using such stars) embody the + E-terms. This routine converts such a position to a + formal mean place (allowing, for example, comparison with a + pulsar timing position). + + Reference: + Explanatory Supplement to the Astronomical Ephemeris, + section 2D, page 48. + + P.T.Wallace Starlink 10 May 1990 + + Copyright (C) 1995 Rutherford Appleton Laboratory + Copyright (C) 1995 Association of Universities for Research in Astronomy Inc. + +.fi +.endhelp |