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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
| commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
| tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /math/slalib/doc/eqecl.hlp | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'math/slalib/doc/eqecl.hlp')
| -rw-r--r-- | math/slalib/doc/eqecl.hlp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/math/slalib/doc/eqecl.hlp b/math/slalib/doc/eqecl.hlp new file mode 100644 index 00000000..a8266afe --- /dev/null +++ b/math/slalib/doc/eqecl.hlp @@ -0,0 +1,31 @@ +.help eqecl Jun99 "Slalib Package" +.nf + + SUBROUTINE slEQEC (DR, DD, DATE, DL, DB) + + - - - - - - + E Q E C + - - - - - - + + Transformation from J2000.0 equatorial coordinates to + ecliptic coordinates (double precision) + + Given: + DR,DD dp J2000.0 mean RA,Dec (radians) + DATE dp TDB (loosely ET) as Modified Julian Date + (JD-2400000.5) + Returned: + DL,DB dp ecliptic longitude and latitude + (mean of date, IAU 1980 theory, radians) + + Called: + slDS2C, slPREC, slEPJ, slDMXV, slECMA, slDC2S, + slDA2P, slDA1P + + P.T.Wallace Starlink March 1986 + + Copyright (C) 1995 Rutherford Appleton Laboratory + Copyright (C) 1995 Association of Universities for Research in Astronomy Inc. + +.fi +.endhelp |