Special Modes

There are three observing modes envisaged for gathering additional scientific data:

PHT Serendipity mode:

Whenever possible during satellite slews PHT will make a survey at 200 m.

CAM Parallel mode:

While an observation is carried out with another instrument at a particular sky position, CAM will take images on a nearby field separated from the sky position by the 12 or 17 arcmin separation between the instrument apertures in the ISO focal plane.

LWS Parallel mode:

While an observation is carried out with another instrument at a particular sky position data from all LWS detectors are taken.

These modes are not available to proposers. The data from these modes need to be taken and reduced in a systematic and complete manner. This will be done by the respective instrument consortia and SOC, with data being published after the mission.