EOPS file contains the series of the estimates the Earth orientation parameters obtained from processing VLBI experiments. # Format: The first line presents the format label. This document describes format version 2.1 of 2007.08.30. The data file which confirms this format description should have the first line # GETPAR_EOP format version 2.1 of 2007.08.30 The line which starts from # is considered as a comment Field Columns Format Units Meaning 1 2-13 F12.6 days Modified Julian date of the TDT time tag 2 15-22 F8.6 arcsec The estimate of X pole coordinate 3 24-31 F8.6 arcsec The estimate of Y pole coordinate 4 33-42 F10.7 sec The UT1-UTC function 5 44-51 F8.3 mas Adjustment of the nutation in longitude angle with respect to IAU 1980 nutation expansion 6 53-60 F8.3 mas Adjustment of the nutation in obliquity angle with respect to IAU 1980 theory 7 62-69 F8.6 arcsec Formal uncertainty of X pole coordinate 8 71-78 F8.6 arcsec Formal uncertainty of Y pole coordinate 9 80-88 F9.7 sec Formal uncertainty of UT1-UTC function 10 90-96 F7.3 mas Formal uncertainty of nutation in longitude angle 11 98-104 F7.3 mas Formal uncertainty of nutation in obliquity angle 12 106-112 F7.2 psec Weighted root mean square of postfit residual of the solution 13 114-119 F6.4 -- Correlation between the estimates of X-pole positions and Y-pole position 14 121-126 F6.4 -- Correlation between the estimates of X-pole positions and UT1-TAI angle 15 128-133 F6.4 -- Correlation between the estimates of Y-pole positions and UT1-TAI angle 16 135-140 F6.4 -- Correlation between the estimates of nutation in longitude and nutation in obliquity 17 142-147 I6 -- Number of used observations in the session 18 149-154 A6 -- IVS session code 19 156-160 F5.2 hours Session duration 20 162-170 F9.6 asc/day Estimate of rate change of X pole coordinate 21 172-180 F9.6 asc/day Estimate of rate change of Y pole coordinate 22 182-191 F10.7 sec Length of day 23 193-194 A2 Filler: -0 does not have any meaning 24 196-197 A2 Filler: -0 does not have any meaning 25 199-207 F9.6 asc/day Formal uncertainty of x pole coordinate rate 26 209-217 F9.6 asc/day Formal uncertainty of y pole coordinate rate 27 219-228 F10.7 sec Formal uncertainty of length of day 28 230-231 A2 Filler: -0 does not have any meaning 29 233-234 A2 Filler: -0 does not have any meaning 30 237-300 A64 -- Network ID. The alphabetically ordered sequecne of two-letter IVS station identifiers. Only those stations which provided obsrvations used in the solution are listed. The station names are defined in the IVS document ivscontrol/ns-codes.txt If a given parameter was not estimated a filler, -0, is placed.