GSFC33A Bld33_Roof_NASA/GSFC    -76 50 24.3  38 59 35.1
GSFC33B Bld33_Roof_NASA/GSFC    -76 50 24.3  38 59 35.1
GSFC33C Bld33_Roof_NASA/GSFC    -76 50 24.3  38 59 35.1
GSFC33Z Bld33_Roof_NASA/GSFC    -76 50 24.3  38 59 35.1  

NOTE: GSFC33Z is a virtual "Best gauge" which is made of combination of 
the best info from 3 real gauges A, B and C.