Instructions for ~rmaddale/bin/RiseTransitSet.tclsh
Ronald J Maddalena
September 9, 2014
Calculates approximate rise, set, transit and total visibility times in
either LST or UT for a specified equatorial or galactic position. The
default is to calculates LST ranges for an equatorial position
Necessary arguments:
-x Either Right Ascension or, if -gal is specified, a
Galactic Longitude. Can be in either fractional degrees
or hours or in sexagesimal format.
-y Either a Declination or, if -gal is specified, a
Galactic Latitude. Can be in either
fractional degrees or in sexagesimal format.
Optional arguments:
-h or -help Brings up this help page and all other options are ignored
-ut A flag that specifies one wants the rise and set times
in approximate UTC
-galactic A flag that specifies -x and -y are Galactic Longitudes
and Latitudes
-mjd Modified Julian Date and only used if -ut is specified.
If -mjd is not specified, the current time is used.
-lat Site latitude. Default is 38.433121 the location of
Green Bank
-long Site longitude and only used if -ut is specified.
Default is -79.839835, the location of Green Bank
-elevLimit Elevation limit in degrees for defining a rise or set
time. Default=5.
The results are rough since corrections for refraction, precession, etc.
are not applied