the following program is carried out in order to consolidate the pht calibration of chopped measurements and derive signal losses due to the high chopper frequency compared to signal stabilization time. - observation of alpha boo (arcturus, hr 5340): background and star staring plus chopped measurements. this is a well known calibration star with a consolidated spectral energy distribution. the star is sufficiently bright to be used as a standard at wavelengths longward of 60 micron. since the star is very bright at the shorter wavelengths background observations are taken only for filters longward of 60 micron. several filter are taken to have several contrast levels between background and source. .history 23/06/97 ja first version .ott .tdt
Instrument
PHT22
Temporal Coverage
1997-07-30T02:29:27Z/1997-07-30T03:32:35Z
Version
1.0
Mission Description
The Infrared Space Observatory (ISO) was the worlds first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths.
European Space Agency, Ulrich Klaas, 2024, 'Calibration observations with AOTs for pipeline validation', 1.0, European Space Agency, https://doi.org/10.5270/esa-0hjp6jb
