the accurate knowledge of the beam profiles is a prerequisite for the calibration of extended sources of centre point source observations. it is not possible to cover all filter/aperture combinations to assess the beam profile shape. based on statistics of the actual science observations the key wavelengths are 7.3, 11.5 and 16.0 micron. here: 16 micron/ 180 aperture we will scan the aperture in y and z using a point source (star) in order to determine the aperture profile for the two combinations history 15/12/97\tcreation database for 180 scan (rjl) 11/03/98 database entries for 16um/180 on hr7310 \t must be executed on 31/03/98 (rev 867) because of fixed position angle
Instrument
PHT03 , PHT17 , PHT18 , PHT19
Temporal Coverage
1998-03-31T13:36:05Z/1998-03-31T15:34:03Z
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, 'Verification cross-scans for P1 beam profiles ', 1.0, European Space Agency, https://doi.org/10.5270/esa-pf1ctwf
