RECORD
Optimizing ISOCAM data processing using spatial redundancy
Astrophysics · Submitted 7 Aug 2000
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The data reduction corrects instrumental effects to the point where the noise in the final map is dominated by the readout and the photon noises.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
We present new data processing techniques that allow to correct the main instrumental effects that degrade the images obtained by ISOCAM, the camera on board the Infrared Space Observatory (ISO). Our techniques take advantage of the fact that a position on the sky has been observed by several pixels at different times. We use this information (1) to correct the long term variation of the detector response, (2) to correct memory effects after glitches and point sources, and (3) to refine the deglitching process. Our new method allows the detection of faint extended emission with contrast smaller than 1% of the zodiacal background. The data reduction corrects instrumental effects to the point where the noise in the final map is dominated by the readout and the photon noises. All raster ISOCAM observations can benefit from the data processing described here. These techniques could also be applied to other raster type observations (e.g. ISOPHOT or IRAC on SIRTF).
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present new data processing techniques that allow to correct the main instrumental effects that degrade the images obtained by ISOCAM, the camera on board the Infrared Space Observatory (ISO). | contribution 1.00 | 0.91 | 0.19 | asserted 1.00 |
| s1 | Our techniques take advantage of the fact that a position on the sky has been observed by several pixels at different times. | method 0.98 | 0.33 | 0.04 | asserted 1.00 |
| s2 | We use this information (1) to correct the long term variation of the detector response, (2) to correct memory effects after glitches and point sources, and (3) to refine the deglitching process. | method 0.97 | 0.89 | 0.09 | asserted 1.00 |
| s3 | Our new method allows the detection of faint extended emission with contrast smaller than 1% of the zodiacal background. | result 0.98 | 0.90 | 0.32 | asserted 0.97 |
| s4 | The data reduction corrects instrumental effects to the point where the noise in the final map is dominated by the readout and the photon noises. | result 0.96 | 0.90 | 0.29 | asserted 1.00 |
| s5 | All raster ISOCAM observations can benefit from the data processing described here. | interpretation 0.72 | 0.31 | 0.16 | asserted 0.99 |
| s6 | These techniques could also be applied to other raster type observations (e.g. ISOPHOT or IRAC on SIRTF). | future work 0.73 | 0.11 | 0.07 | hedged possibility 1.00 |
What was examined, and what was not
- arXiv listing abstract v1
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
We present new data processing techniques that allow to correct the main instrumental effects that degrade the images obtained by ISOCAM, the camera on board the Infrared Space Observatory (ISO). Our techniques take advantage of the fact that a position on the sky has been observed by several pixels at different times. We use this information (1) to correct the long term variation of the detector response, (2) to correct memory effects after glitches and point sources, and (3) to refine the deglitching process. Our new method allows the detection of faint extended emission with contrast smaller than 1% of the zodiacal background. The data reduction corrects instrumental effects to the point where the noise in the final map is dominated by the readout and the photon noises. All raster ISOCAM observations can benefit from the data processing described here. These techniques could also be applied to other raster type observations (e.g. ISOPHOT or IRAC on SIRTF).
Human review
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.