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AORKEY = 10311168
PI = Kathleen Kraemer
PROGID = 3121
PROTITLE = Infrared Dark Clouds in the Inner Galaxy
OBJECT = DF4.336-0.051
PKUPACCU = Moderate
PKUPFILT = BLUE
PKUPFLUX = 146.600
PKUPXTND = 0
PTGDIFF (ACQ) = 0.047615776
PTGDIFF (SS) = 28.179618
ACQ XC = 10070
ACQ YC = 1594
SS XC = 10789
SS YC = 2792
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EXPLANATION
The scene is complex, and a bright source far from the aim point was
correctly centroided in ACQ, moved to SS and then to the slit. Observer
should check what was intended.