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AORKEY = 4580608
PI = James R. Houck
PROGID = 74
PROTITLE = Powerful Radio Sources
OBJECT = 3C337
PKUPACCU = Moderate
PKUPFILT = BLUE
PKUPFLUX = 1.00000
PKUPXTND = 0
PTGDIFF (ACQ) = 1.6428909
PTGDIFF (SS) = 18.912032
ACQ XC = 9939
ACQ YC = 3452
SS XC = 11425
SS YC = 2297
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EXPLANATION
Two sources of comprable brightness are in the field. The PU selected the one further from the center for ACQ and moved it to the SS. Then it selected the other one for the SS, and moved it to the slit. Assuming the blind pointing was nominal, the correct object was moved into the slit.