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AORKEY = 4624896
PI = Giovanni Fazio
PROGID = 79
PROTITLE = Proto-Clusters Around High-Redshift Radio Galaxies
OBJECT = 4C41.17
PKUPACCU = Moderate
PKUPFILT = RED
PKUPFLUX = 1.00000
PKUPXTND = 0
PTGDIFF (ACQ) = 13.252638
PTGDIFF (SS) = 154.77056
ACQ XC = 9146
ACQ YC = 9501
SS XC = 9139
SS YC = 7309
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EXPLANATION
Intended source is very faint. A different, marginally brighter source in the field
was selected by the onboard PU and moved to the slit. We note that the value of PTGDIFF
for the ACQ is anomalously large. We are investigating the source of this effect, but
it is only in reconstructed pointing not real telescope moves; thus the value of PTGDIFF
is not related to the PU false positive.