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Calibration Results

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Internal Lamps
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Tungsten lamps

Dispersers
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Last updated
21 December 2001 08:47:53

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Table 1 : Ratio and Rates Data

Entry Filename Filter Exp. Source Median1 Count
Rate2
Model
Rate
Ratio3 Comments
5587 CSIJ99071160042_1 F250W 600.0 tung#3 727.3 1.40 0.68 2.06 scattered light
5588 CSIJ99071160042_2 F475W 5.0 tung#3 9117.9 2114.8 1193.2 1.77 bright center falling off on rhs
5589 CSIJ99071160042_3 F625W 1.0 tung#3 10722.7 12435.8 6337.5 1.96
5590 CSIJ99071160042_4 F775W 0.5 tung#3 10700.8 24820.8 11161.6 2.22
5591 CSIJ99071160042_5 F850LP 0.5 tung#3 11942.9 27702.4 11686.8 2.37 mottled pattern
5594 CSIJ99071163042_1 F250W 600.0 tung#4 689.0 1.33 0.68 1.96 scattered light
5595 CSIJ99071163042_2 F475W 5.0 tung#4 8562.3 1986.0 1193.2 1.66 smooth--brighter in center
5596 CSIJ99071163042_3 F625W 1.0 tung#4 10385.7 12045.0 6337.5 1.90
5597 CSIJ99071163042_4 F775W 0.5 tung#4 10486.1 24322.9 11161.6 2.18
5598 CSIJ99071163042_5 F850LP 0.5 tung#4 11796.4 27362.8 11686.8 2.34 mottled pattern

Notes:

  1. Median refers to median signal value for (Image - Trailing Serial), found using acs_stats
  2. Count Rate refers to median signal value for (Image - Trailing Serial)/exptime, corrected for the average bias value, giving units for both the count rate and model as [e/pix/sec]
  3. The ratio is quoted as experimental/model