#title NIS mirror shift calibration database -- Version 1, 22 January 1999 #maxentries 1000 #items DATE R*8 TAI time of date that entry was created DATE_EFF R*8 Effective date for the data SPECTRUM I*2 Either 1 or 2 N_COEFF I*2 Number of polynomial parameters, maximum 10 COEFF(10) R*8 Coefficients of the tilt calibration #index DATE sorted DATE_EFF sort