chopped observations of faint sources in pht standard filters for monitoring. observations have been calibrated in cfaint31 and cfaint32. the monitoring takes place every 4 weeks until the end of the iso mission.
Instrument
PHT03 , PHT22
Temporal Coverage
1998-04-07T09:21:04Z/1998-04-07T10:04:04Z
Version
1.0
Mission Description
The Infrared Space Observatory (ISO) was the world's 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.