Focal Plane Array An array of CCDs in the focal plane of the telescope, read out together by the camera electronics. Footprint The set of pixels that are determined to be part of the Source Gray Extinction Surface A Surface which specifies the gray extinction within an Exposure as a function of Pixel Coordinates (or possibly Focal Plane Coordinates?) IR Cloud Camera Images Images of the sky over the Observatory taken by a camera sensitive to the thermal infrared. Image A 2D array of pixels Image Plane Coordinates coordinates in an ideal image plane, for example a tangent plane Image Tile A Sky Tile together with the Sky Projection that defines the projection of the Sky Tile onto the plane. Instrument Model Contains all information required to convert a photon flux in a ray from given angular coordinates wrt the camera optical axis into ADU counts/sec in the corresponding pixels.
Focal Plane Array An array of CCDs in the focal plane of the telescope, read out together by the camera electronics. Footprint The set of pixels that are determined to be part of the Source Gray Extinction Surface A Surface which specifies the gray extinction within an Exposure as a function of Pixel Coordinates (or possibly Focal Plane Coordinates?) IR Cloud Camera Images Images of the sky over the Observatory taken by a camera sensitive to the thermal infrared. Image A 2D array of pixels Image Plane Coordinates coordinates in an ideal image plane, for example a tangent plane Image Tile A Sky Tile together with the Sky Projection that defines the projection of the Sky Tile onto the plane. Instrument Model Contains all information required to convert a photon flux in a ray from given angular coordinates wrt the camera optical axis into ADU counts/sec in the corresponding pixels.