*************************************************************
AORKEY = 12097792
PI = Kathleen Kraemer
PROGID = 3121
PROTITLE = Infrared Dark Clouds in the Inner Galaxy
OBJECT = G10_cluster
PKUPACCU = Moderate
PKUPFILT = BLUE
PKUPFLUX = 73.0000
PKUPXTND = 0
PTGDIFF (ACQ) = 0.056255845
PTGDIFF (SS) = 33.945041
ACQ XC = 10794
ACQ YC = 1128
SS XC = 10798
SS YC = 2808
*************************************************************
EXPLANATION
The sence is complex. A bright source at the edge of the field
was correctly centroided in ACQ, moved to the SS and then to the slit.
It's likely that the science target was lost, but observer should
double check.