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AORKEY = 4947456
PI = James R. Houck
PROGID = 103
PROTITLE = IRS Study of Planetary Nebulae in the SMC/LMC
OBJECT = LMC-SMP008
PKUPACCU = High
PKUPFILT = BLUE
PKUPFLUX = 16.0000
PKUPXTND = 0
PTGDIFF (ACQ) = 0.019919108
PTGDIFF (SS) = 21.339952
ACQ XC = 9608
ACQ YC = 2627
SS XC = 10805
SS YC = 2789
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EXPLANATION
There is a brighter object in the field than the one at the aim point.
It was correctly selected by ACQ and moved to SS and then the slit.