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AORKEY = 5279488
PI = Michael R. Meyer
PROGID = 148
PROTITLE = The Formation and Evolution of Planetary Systems: Placing Our Solar
OBJECT = RX_J1544.0-3311
PKUPACCU = High
PKUPFILT = BLUE
PKUPFLUX = 4.13000
PKUPXTND = 0
PTGDIFF (ACQ) = 0.92890943
PTGDIFF (SS) = 0.070491722
ACQ XC = 10202
ACQ YC = 3171
SS XC = 10202
SS YC = 3171
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EXPLANATION
The source appears to be double, and the brighter component is further from the aim point.
The observer should check if the source that ended in the slit is the intended target.