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operations:sar [2018/01/14 23:15] (current)
Jamie McCallum created
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|+||====== SAR satellite tracking with the AuSCope Array ======|
|+||SAR (Synthetic Aperture Radar) satellites are orbiting satellites which use radars (generally at C- or X-band) to map terrain and measure it properties such as soil moisture, etc. From late 2017, the AuScope telescopes have been used to track the SENTINEL-1 SAR satellite, which makes a pass over the sites once every 12 days. By pointing the telescopes to a fixed direction, the telescopes provide a clear reflection to the radar beam and appear as bright, fixed reference points in the radar image. |
|+||The passes are extremely short and are generally complete in two minutes or less. With slewing times included, the total interruption to a schedule is less than 5 minutes. As such, we now support regular observations of the SENTINEL-1 satellite, even where this interrupts a regularly scheduled experiment. This is practically implemented through the ''addSAR.sh'' script, which automatically edits the SNAP file for an experiment removing or shortening scans as necessary to support the SENT-1 track. ''addSAR.sh'' is now run by default when preparing the SNP files through ''slogit.auscope.sh''|