USAGE | YYYYMMDD2Jul year month day seconds_UTC |
FUNCTION | Turns date in year, month, day, seconds UTC format into a Julian Day format in number of days before year 2000 |
PROCESS |
Adds: (number of years before or past year = 2000) times 365.25 number of days in year up until month number of days passed in month percent of day that has passed Adds one day in leap years returns number of days since Julian Day reference (Negative until year=2000) |
CALLED_BY | select_PRC_date.pl |
FILES_USED | none |
FILES_CREATED | none |
LAST UPDATE | May 29, 1998 |
This software is part of the JPL/Caltech ROI_PAC suite.
Not for general distribution. |
For more info: roi_pac@gps.caltech.edu roi_pac@jpl.nasa.gov |