Lasair Transients and Variables*

Gravitational Wave Skymap: S200219ac_1

The probability contours of the location of the gravitational-wave counterpart are shown below; the sky background can be changed with the selector, and the interface allows arbitary zooming. The 9 contour lines show percentiles of the probability density: the outermost line contains 90% and the innermost contains 10%. The three checkboxes below are as follows:

Coverage: shows if the ZTF survey has covered the skymap in the date range specified. Note that ZTF did not start until 20180527.
Candidates: Shows the ZTF candidates surrounding the skymap and in a time window around the event time. The form fields are in days, as differences from the event time.
Galaxies: Shows galaxies that may have the counterpart, with the size of the symbol as the 3D probability density at that galaxy position and distance.

Remember to click "submit" to refresh the page.

Distance	1510.2 ± 404.7 Mpc
ISO Date:	2020-02-19T09:44:15.197173
Julian date:	2458898.906
Percent probability:	BNS=0, NSBH=0, BBH=96 MassGap=0
max prob RA,Dec	18.5, -28.3

Projection:

json ztfquery

SELECT objectId,jd,ra,decl,fid,magpsf FROM candidates WHERE jd BETWEEN 2458897.905729 and 2458899.905729 AND 
((ra BETWEEN 190.0 and 195.0 AND decl BETWEEN 65.0 AND 70.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN 65.0 AND 70.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN 65.0 AND 70.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN 60.0 AND 65.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN 60.0 AND 65.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN 60.0 AND 65.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN 60.0 AND 65.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN 55.0 AND 60.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN 55.0 AND 60.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN 55.0 AND 60.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN 55.0 AND 60.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN 50.0 AND 55.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN 50.0 AND 55.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN 50.0 AND 55.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN 50.0 AND 55.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN 50.0 AND 55.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN 45.0 AND 50.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN 45.0 AND 50.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN 45.0 AND 50.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN 45.0 AND 50.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN 45.0 AND 50.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN 40.0 AND 45.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN 40.0 AND 45.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN 40.0 AND 45.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN 35.0 AND 40.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN 35.0 AND 40.0)
 OR (ra BETWEEN 165.0 and 170.0 AND decl BETWEEN 35.0 AND 40.0)
 OR (ra BETWEEN 165.0 and 170.0 AND decl BETWEEN 30.0 AND 35.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN 30.0 AND 35.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN 30.0 AND 35.0)
 OR (ra BETWEEN 165.0 and 170.0 AND decl BETWEEN 25.0 AND 30.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN 25.0 AND 30.0)
 OR (ra BETWEEN 5.0 and 10.0 AND decl BETWEEN -15.0 AND -10.0)
 OR (ra BETWEEN 0.0 and 5.0 AND decl BETWEEN -15.0 AND -10.0)
 OR (ra BETWEEN 10.0 and 15.0 AND decl BETWEEN -15.0 AND -10.0)
 OR (ra BETWEEN 5.0 and 10.0 AND decl BETWEEN -20.0 AND -15.0)
 OR (ra BETWEEN 10.0 and 15.0 AND decl BETWEEN -20.0 AND -15.0)
 OR (ra BETWEEN 15.0 and 20.0 AND decl BETWEEN -20.0 AND -15.0)
 OR (ra BETWEEN 5.0 and 10.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 10.0 and 15.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 15.0 and 20.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 20.0 and 25.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 10.0 and 15.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 15.0 and 20.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 20.0 and 25.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 25.0 and 30.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 10.0 and 15.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 15.0 and 20.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 20.0 and 25.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 25.0 and 30.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 15.0 and 20.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 20.0 and 25.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 25.0 and 30.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 30.0 and 35.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 25.0 and 30.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 30.0 and 35.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 35.0 and 40.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 40.0 and 45.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 45.0 and 50.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 35.0 and 40.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 40.0 and 45.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 45.0 and 50.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 50.0 and 55.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 40.0 and 45.0 AND decl BETWEEN -55.0 AND -50.0)
 OR (ra BETWEEN 45.0 and 50.0 AND decl BETWEEN -55.0 AND -50.0)
 OR (ra BETWEEN 50.0 and 55.0 AND decl BETWEEN -55.0 AND -50.0)
) ORDER BY objectId

Coverage of ZTF	From	To
Show ZTF candidates	From	To
Show galaxies from GLADE	doubleclick a galaxy