Transcript Markus Nielbock (MPIA) – PACS Photometer Responsivity PACS

PACS ICC Photometer Workshop
15th - 17th September 2010
Markus Nielbock (MPIA Heidelberg)
Markus Nielbock (MPIA) – PACS Photometer Responsivity
PACS Photometer Responsivity Drift Analysis
Correlation with evaporator temperature
Markus Nielbock (MPIA) – PACS Photometer Responsivity
Correlation with M1 temperature - initial findings
Markus Nielbock (MPIA) – PACS Photometer Responsivity
Correlation with M1 temperature
responsivity drift seems to be partly correlated with M1 temperature
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further influence suggested
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some of it due to bolometer evaporator temperature drift
Markus Nielbock (MPIA) – PACS Photometer Responsivity
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Individual chop-nod positions
Markus Nielbock (MPIA) – PACS Photometer Responsivity
Individual chop-nod positions
Markus Nielbock (MPIA) – PACS Photometer Responsivity
Results
clear responsivity variations in time (blue filter)
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more severe for chop-nod than for scan map
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possible anti-correlation with M1 temperature
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strong discrepancy between chop-nod positions
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one of four positions shows similar shift like scan map
(after update of bad pixel list)
Markus Nielbock (MPIA) – PACS Photometer Responsivity
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Flux gradient in FOV
after photDiffNod()
after photCombineNod()
Markus Nielbock (MPIA) – PACS Photometer Responsivity
after photAvgDith()
Bad pixels at source locations
Markus Nielbock (MPIA) – PACS Photometer Responsivity
Comparison: Mad Map vs. Scanamorphos
Scanamorphos
Scanamorphos – Mad Map
Markus Nielbock (MPIA) – Mad Map vs. Scanamorphos
Mad Map