rvsao.bcvcorr

bcvcorr sets the barycentric velocity correction for a given observation of an object in the header of its spectrum. This velocity is then added to the radial velocity found by xcsao or emsao to get a radial velocity relative to the barycenter (center of mass) of the solar system. It is most often used to set the barycentric velocity correction of spectra which do not use the header keywords expected by the correction computation subroutine in xcsao or emsao: SITELONG, SITELAT, and SITEELEV for longitude, latitude, and altitude, respectively, OBS-DATE for observatation date, UT or UTOPEN and EXPOSURE or EXPTIME.

Procedure

Parameters

Examples

1. Compute barycentric velocity correction from header
2. Compute barycentric velocity correction from header and table
3. Compute barycentric velocity correction from task parameters

Last updated February 6, 2002 by Doug Mink dmink@cfa.harvard.edu

Telescope Data Cent
er [rvsao] [xcsao] [emsao] [sumspec] [linespec]