The Advanced Camera for Surveys The Johns Hopkins University

Table 2 : Flat field statistics within area [590:690,490:590]

Filter
set up
Notes P-flat statistics P-flat/F115LP ratio stats
Min Max Poisson
[%]
Measured
[%]
Residual
[%]
Poisson
[%]
Measured
[%]
Residual
[%]
F115LP
1st set
  0.71 1.27 0.97 6.04 5.96      
F115LP
2nd set
(1,2) 0.71 1.26 1.08 6.01 5.91 1.45 1.54 0.52
F115LP
D2 int.
(3) 0.70 1.34 5.80 8.22 5.83 5.88 5.95 0.90
F122M   0.71 1.27 0.93 6.27 6.20 1.34 1.48 0.64
F125LP   0.71 1.25 0.96 6.00 5.92 1.36 1.39 0.29
F140LP
1st set
  0.71 1.23 0.95 5.84 5.76 1.36 1.46 0.53
F140LP
2nd set
(1) 0.72 1.25 0.96 5.93 5.85 1.36 1.46 0.51
F150LP   0.72 1.24 1.00 5.88 5.79 1.39 1.47 0.49
F165LP   0.72 1.23 0.99 5.64 5.56 1.38 1.58 0.76
PR110L   0.71 1.24 0.99 6.06 5.97 1.38 1.56 0.73
PR130L   0.71 1.27 1.00 6.00 5.92 1.39 1.52 0.63
NOTES : (1) Includes the normal filter position, as well as plus and minus one filter step positions.
(2) STUFF Spectralon diffuser used.
(3) Internal lamp flat with few counts.

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Last updated 04 January 2002 12:21:36
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