... from three primary sources: Earth shine, geocoronal emission, and zodiacallight ... Earth shadow to the effect of zodiacallight, and background levels higher than that ... We used an "average" zodiacallight Table 2: Comparison of ETC with Observed ...
... of the different sources of noise (zodiacallight, detector dark current and readout ... i.e., slit losses; changes in the zodiacallight) and updates other relevant issues ... The zodiacallight increases with the slit width. ...
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Ссылки http://www.stsci.edu/jwst/doc-archive/st-ecf-documents/JWST-STScI-002268.pdf -- 1897.5 Кб -- 01.03.2014 Похожие документы
... per square arcsecond) is an estimate of the minimum zodiacallight for sources at high ecliptic latitudes while the high ... The average (22.5 V magnitudes per square arcsecond) background represents the average zodiacallight only. ...
... The second source of background is zodiacallight, which can be an important con ... Thus, R B for the zodiacallight can be computed by multiplying the results shown in ...
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Ссылки http://www.stsci.edu/ftp/instrument_news/FOC/Foc_handbook/v5/handbook_v5_ch07.ps -- 229.2 Кб -- 09.12.1994 Похожие документы
... by scattered light (e.g zodiacallight and earthshine), and therefore need to be ... to times that minimize both zodiacallight and earthshine scattered by the Optical ... To minimize the zodiacallight, the scheduling algorithm places seasonal ...
... Section 6.4.4 ), average standard zodiacallight and earth shine, and, to start with ... chip 2, and with average standard zodiacallight, average standard earth shine and ... Assume average zodiacallight and average earthshine. ...
... infrared background flux (particularly the zodiacallight) throughout the JWST orbit ... backgrounds for a given target are the zodiacallight and thermal self-emission from ...
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Ссылки http://www.stsci.edu/jwst/doc-archive/technical-reports/JWST-STScI-000404.pdf -- 271.8 Кб -- 05.02.2013 Похожие документы
... at near-infrared wavelengths, the zodiacallight at mid-infrared wavelengths and ... the near-infrared contribution from one of those components, the zodiacallight ... The overwhelming majority of the zodiacallight is contributed by scattered light ...
... at near-infrared wavelengths, the zodiacallight at mid-infrared wavelengths and ... the near-infrared contribution from one of those components, the zodiacallight ... The overwhelming majority of the zodiacallight is contributed by scattered light ...