The "Pi of the Sky" apparatus continuously monitors the sky. Currently we scan the whole sky twice a night (20min/scan). For the rest of the time we follow the SWIFT FOV.
10 s exposures of a 40ox 40o field are taken by 4
cameras simultaneously (2 x 2000-3000 images / night).
On-line analysis of the images is performed in search for rapidly (~10 s) brightening point-like objects.
Algorithm requires confirmation of optical transient on at least one subsequent image.
The last column contains objects coinciding with the flash within 2 arcmin and GRB alerts coinciding +-15 min in time.
The following events have been detected since 2011-01-01 :
|Event ID||Date UT||Time UT||frames||RA||Dec||mmax||conciding alerts / sources|
|20120424 1994 8||2012.04.25||04:05:54||12||15h12m35.30s||-16o30'29''||10.6||Visible on at least 12 frames|
|20111124 1228 20||2011.11.24||23:28:38||6||4h13m29.71s||-1o40'6''||11.9||Matching SIMBAD star 2MASS J04132663-0139211|