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Dynamic black-level correction and artifact flagging for kepler pixel time series
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Caldwell, D. A. Clarke, B. D. Kolodziejczak, J. J. |
| Copyright Year | 2011 |
| Description | Methods applied to the calibration stage of Kepler pipeline data processing [1] (CAL) do not currently use all of the information available to identify and correct several instrument-induced artifacts. These include time-varying crosstalk from the fine guidance sensor (FGS) clock signals, and manifestations of drifting moire pattern as locally correlated nonstationary noise, and rolling bands in the images which find their way into the time series [2], [3]. As the Kepler Mission continues to improve the fidelity of its science data products, we are evaluating the benefits of adding pipeline steps to more completely model and dynamically correct the FGS crosstalk, then use the residuals from these model fits to detect and flag spatial regions and time intervals of strong time-varying black-level which may complicate later processing or lead to misinterpretation of instrument behavior as stellar activity. |
| File Size | 13065292 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120002957 |
| Archival Resource Key | ark:/13960/t83j8fz3v |
| Language | English |
| Publisher Date | 2011-12-05 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Sensitivity Time Series Analysis Pipelines Calibrating Crosstalk Data Processing Kepler Mission Stellar Activity Guidance Sensors Correction Pixels Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
