Notes on the ROC

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In general, the specified position of an observation in the plain text ROC will be at the center of any requested map. Observers should take map center offsets into consideration when searching for possible duplications. The mapped area columns in the ROC indicate the approximate area on the sky and do not imply that depth coverage is the same throughout the map.

Observations tagged as GENERIC can 'move' up to 2 degrees. See the Spitzer Observer's Manual for more information about Generic targets.

A note about Guaranteed Time Observations and the title Principal Investigator (PI): All Spitzer Programs must have a Principal Investigator. Many of the Spitzer GTOs are collaborating on various observing programs, contributing some of their time allocation to form Shared Time Programs. There are over two dozen of these Shared Time Programs within the ROC. In the case of a Shared Time Program the PI need not be a GTO and in a few cases a non-GTO was chosen to be PI of the Program.

There are duplications within the ROC. In some cases these are due to requested return visits to targets for temporal studies. In other cases the investigators split up observations into multiple AORs to work around the maximum time duration per AOR restrictions. Also, a few Shared Time Programs return to some targets to increase integration times or for temporal studies. These are not considered conflicting duplications since one of the contributing GTOs in the Shared Time Program is PI of the apparent duplicate observation.

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