... diffuse background sources; the dark current, airglow lines, and the zodiacallight ... Zodiacallight [S10] at 5300 A. >If object more than 90 deg from Sun >use flux in ...
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Ссылки http://www.stsci.edu/ftp/instrument_news/FOC/Foc_isr/foc_isr063.ps -- 96.5 Кб -- 28.04.1993 Похожие документы
... The sky contributions are from the Earth shine, the zodiacallight and the geocoronal lines. ... 1) both Earth shine and zodiacallight can be selected as low,average,high (or very high in the case of the Earth shine ...
... A model of zodiacallight from the previous STScI NICMOS ETC is used (cf. the one ... This is an average of zodiacallight at 45 degrees from ecliptic. ... regardless of choices made here: a zodiacallight level corresponding to a 45 degree ...
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Ссылки http://www.stsci.edu/hst/nicmos/documents/isrs/isr_00_001.pdf -- 181.1 Кб -- 19.11.2007 Похожие документы
... For the CCD, the dominant sources of sky background are zodiacallight and scattered earthshine. ... Zodiacallight provides the largest contribution for the rest of the filters on the day side of the orbit and for most of them ...
... The only currently supported selectable sources of background light are from zodiacallight and from earthshine. ... The user will select low, average, or high levels of zodiacallight and earthshine for their ETC runs. ...
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Ссылки http://www.stsci.edu/hst/wfc3/documents/ISRs/2000/WFC3-2000-02.pdf -- 394.7 Кб -- 25.09.2008 Похожие документы