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На этой странице приведены все страницы, которые ссылаются на http://www.stsci.edu/instruments/wfpc2/Wfpc2_hand4/ch999_appendix_b_snr2.html. Показаны документы 1 - 1 из 1.
1. Sample SNR Calculations
Below we give further examples of SNR calculations. ... We want to know the SNR for a 1200s CR-SPLIT exposure. ... The exposure time t =600 for each exposure of the CR-SPLIT: . ... http://www.stsci.edu/ftp/instrument_news/WFPC2/wfpc2_top.html Figure 6.2: Sample Fill-out Form for WFPC2 On-Line Exposure Time Calculator. ... Note we have entered the exposure time as 1800s. Scrolling down through the output page we find a table of SNR for various CR-SPLITings of the exposure (See Figure 6.8 ). ...
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Ссылки http://www.stsci.edu/instruments/wfpc2/Wfpc2_hand4/ch6_exposuretime8.html -- 31.3 Кб -- 04.09.2001
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