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16851

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DataCite Commons2023-04-21 更新2025-04-15 收录
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http://esdcdoi.esac.esa.int/doi/html/data/astronomy/hst/16851.html
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This program is designed to verify acquisition parameters at LP6 and to produce spectra at several regions on the detector that would normally be used for target acquisition comma but for which data are not downlinked as part of the acquisition process. The idea is that if anything does go wrong with the acquisition tests we will have maps of the detector that we can then use for diagnostics. LP6 is at +6.5d_comma from the on-axis detector position comma The program uses ficticious offset targets to nod the telescope away from a centered target and then test the re-acquisition. Because these displacements need to happen along the AD and XD detector direction and target offset coordinates must be entered in RA and DEC comma the ORIENT angle for each visit must be restricted to +-- 0.5 degrees comma which also means a date range restriction. The date ranges and ORIENT restrictions for each visit are described in the program description. The program is modeled after the LP5 version of this programdoublePoint 16432. It uses the target WDG-1 (SK 191) and cenwave G160M-1577 for all exposures. Prior to the execution of this program all LP6 SIAF comma aperture mechnism positions comma TA subarray comma and foci must have been installed. There is no special commanding in this program.
提供机构:
European Space Agency
创建时间:
2023-04-21
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