ASTROMETRIC_CAT: acrs 1950
      ZERO_PT_CORR: +0.0 +12.0
  INITIAL_ROTATION: 0.258
     NUM_CAL_STARS: 173
FIELD_CENTER_PLATE: 171939.70 173346.68
  FIELD_CENTER_SKY: 03:31:15.00 -23:44:47.0
            RA_RMS: 0.436
           DEC_RMS: 0.317
                dX: -9.8828923e-01
               X|x: 4.1917717e-16
               X|y: -6.8860838e-06
             X|xr2: 4.1917717e-16
                dY: 5.0280419e+00
               Y|x: 6.5082120e-06
               Y|y: 4.1318093e-16
             Y|yr2: 4.1318093e-16