The file "MgII_absorber_catalog" contains redshift and rest equivalent width (REW) 
measurements for MgII absorption as well as measurements of additional FeII, MnII, 
and MgI absorption lines identified at the redshift of MgII in the searched quasars. 
The columns in this file are listed below. When no measurement was possible, for 
example when the redshifted wavelength of a given line was not covered, a value of 
99999 is shown.  

The columns of the absorber catalog file are described below.
Column 1: J2000 RaDec name
Column 2: MJD
Column 3: plate
Column 4: fiber
Column 5: zabs (MgII absorption redshift)
Column 6: REW_MgII2796
Column 7: 1sigma error in REW_MgII2796
Column 8: REW_MgII2803
Column 9: 1sigma error in REW_MgII2803
Column 10: REW_FeII2586 
Column 11: 1sigma error in REW_FeII2586
Column 12: REW_FeII2600
Column 13: 1sigma error in REW_FeII2600 
Column 14: REW_MnII2576
Column 15: 1sigma error in REW_MnII2576 
Column 16: REW_MnII2594
Column 17: 1sigma error in REW_MnII2594
Column 18: REW_MnII2606 
Column 19: 1sigma error in REW_MnII2606 
Column 20: REW_MgI2852
Column 21: 1sigma error in REW_MgI2852