Decimal Year Convention:
We follow the same decimal year convention used by JPL for GIPSY time series. This file contains an unambiguous mapping of decimal year to date given in YYMMMDD (Y=year, M=month, D=day). The decimal year can be used as a time argument for plotting, kinematic fitting, etc. This year has exactly 365.25 days for all years. The year is exactly an integer for leap years on January 1, 12:00 (noon) GPS time. Therefore 00JAN01 = 2000.0000, 04JAN01 = 2004.0000, etc.
A file with a mapping from dates in YYMMMDD format to decimal year can be found by clicking