_______________________________________________________ Format for time series of coordinates of the TRF origin (Draft) _______________________________________________________ DEFINITION: (TBD) Nine fields separated by blanks - one result per line: 1 MJD Modified Julian Date 2 TX in mm 3 TY in mm 4 TZ in mm 5 S scale in ppb = 10-9 6 sigTX uncertainty of TX in mm 0. if NA 7 sigTY uncertainty of TY in mm 0. if NA 8 sigTZ uncertainty of TZ in mm 0. if NA 9 sigS uncertainty of scale in ppb = 10-9 0. if NA An example: date TX TY TZ S sigX sigY sigZ sigS (MJD) (mm) (mm) (mm) (ppb) (mm) (mm) (mm) (ppb) 48917.09 -0.20 13.52 62.16 -1.55 3.33 3.12 3.38 0.45 48924.08 7.98 12.12 53.06 -2.80 2.92 3.04 3.22 0.44 _______________________________________________________________________________ Relationship between MJD and decimal year: Decimal year = 2000.0000 + (MJD-51544.03)/365.2422 Relationship between MJD and DOY: ---------------------------------------------- Year MJD Year MJD ---------------------------------------------- 1991 48256 + DOY 2006 53735 + DOY 1992 48621 + DOY 2007 54100 + DOY 1993 48987 + DOY 2008 54465 + DOY 1994 49352 + DOY 2009 54831 + DOY 1995 49717 + DOY 2010 55196 + DOY 1996 50082 + DOY 2011 55561 + DOY 1997 50448 + DOY 2012 55927 + DOY 1998 50813 + DOY 2013 56292 + DOY 1999 51179 + DOY 2014 56657 + DOY 2000 51543 + DOY 2015 57022 + DOY 2001 51909 + DOY 2016 57387 + DOY 2002 52274 + DOY 2017 57753 + DOY 2003 52639 + DOY 2018 58118 + DOY 2004 53004 + DOY 2019 58483 + DOY 2005 53371 + DOY 2020 58848 + DOY ----------------------------------------------