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2009-09-19 Pec Refinement >
Two PEC refinements were performed during session S403, based on original PEC training run recorded during session S358 (2009-03-29)/refined during session S370 (2009-05-28)
Original Periodic Error Measurement (2009-03-29) Original data showed periodic error of 32 arc sec (+/- 16 arc sec) |
Previous Refinement Run (2009-05-29) |
First Refinement |
Data acquired from 48 min run with
PEC On (~2x24 min cycles), |
PEC Refinement | Red - previous PEC curve | Blue - measured PE from first refinement run | Green - refined PEC curve | |
Second Refinement |
Data acquired from second refinement
run with PEC On (~1x24 min cycles), |
PEC Refinement | Red - PEC curve after 1st refinement | Blue - measured PE from second refinement run | Green - final new PEC curve (2) | |
Final Refined PEC curve (PemPro-2009-12-11-S403_RefinedPecCurve_2nd.ppc) |
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Example of improvement in image quality from PEC
refinement (part of NGC 2264 Mosaic) |
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CCD Image Montage |
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This Web Page: | Notes - Session 403 (2009-12-10) |
Last Updated : | 2015-05-16 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |