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: http://www.stsci.edu/instrument-news/handbooks/ghrs/GHRS_25.html
Дата изменения: Wed Feb 14 17:44:50 1996 Дата индексирования: Sat Dec 22 16:58:21 2007 Кодировка: Поисковые слова: покрытие |
Aside from the one-time changes imposed by COSTAR and the reactivation of Side 1, the GHRS has been a very stable and reliable instrument. Therefore the calibration programs for Cycles 5 and 6 consist mostly of monitoring programs, with a few special tests and one characterization. What we measure is our ability to establish the wavelength and flux scales of spectra. We also check basic properties of the detectors on a regular basis and examine other aspects of the instrument.