Basic Information on pops

Task: pops
Purpose: Convert position to another epoch.
Categories: utility

POPS is a Miriad task which converts equatorial positions
from one epoch to another. Accuracy is about 1 arcsec.
If an observatory is also given, POPS
gives other source information, such as radial velocity, source
rise and set time and source elevation and azimuth. 

Key: radec
Right ascension and declination, given as hh:mm:ss,dd:mm:ss.
These coordinates are assumed to be mean coordinates of the given
epoch. The mean, true and apparent coordinates are printed on output.

Key: epochs
The input and output epochs. The epochs can be given as either
Bxxxx or Jxxxx (where xxxx is a year, e.g. B1950 or J2000), or as
yymmmdd:hh:mm:ss, a time in normal Miriad format 
(e.g. 93JAN05:10:25:00).

Key: telescop
Observatory name. Default is the geocenter.

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