NOAO Abstracts for SPIE Meeting in March
The NOAO Mosaic Data Handling System
Authors:
F. G. Valdes and D. Tody
Abstract:
The NOAO Mosaic CCD Camera consists of 8 CCDs producing an 8K x 8K format.
The "Mosaic Data Handling System" (MDHS) receives data packets from the
detector system and broadcasts them on a message bus. A "data capture
agent" (DCA) receives the data and formats it into a set of "distributed
shared images" (DSI). The images are displayed as they are received by a
"real-time display" (RTD) and are recorded to disk as "multiextension FITS"
(MEF) files by the DCA. The DCA triggers a "data reduction agent" (DRA) to
do standard pipeline processing and archiving with a graphical user
interface (GUI) for user interaction. The MDHS provides a suite of IRAF
data reduction tools for the user and DRA to apply to the MEF mosaic data.
The tools include quick-look analysis of the data in the RTD, basic CCD
calibration, mosaic reconstruction, and combining of dithered observations
into a fully populated (gaps removed) image.
[NOAO at the SPIE Meeting in
March]
National Optical Astronomy Observatories, 950 North Cherry Avenue,
P.O. Box 26732, Tucson, Arizona 85726 Phone: (520) 318-8000
Posted: 02Mar1998