Lasair Transients and Variables*

Gravitational Wave Skymap: S190421ar

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	2281.3 ± 696.6 Mpc
ISO Date:	2019-04-21T21:38:56.254401
Julian date:	2458595.402
Percent probability:	BNS=0, NSBH=0, BBH=0 MassGap=0
max prob RA,Dec	206.8, -48.9

Projection:

json ztfquery

SELECT objectId,jd,ra,decl,fid,magpsf FROM candidates WHERE jd BETWEEN 2458594.402037 and 2458596.402037 AND 
((ra BETWEEN 185.0 and 190.0 AND decl BETWEEN -15.0 AND -10.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -15.0 AND -10.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN -20.0 AND -15.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -20.0 AND -15.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -20.0 AND -15.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -20.0 AND -15.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -25.0 AND -20.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -30.0 AND -25.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -35.0 AND -30.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -40.0 AND -35.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -45.0 AND -40.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -50.0 AND -45.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -55.0 AND -50.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -55.0 AND -50.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -55.0 AND -50.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -55.0 AND -50.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -55.0 AND -50.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -60.0 AND -55.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -60.0 AND -55.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -60.0 AND -55.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -60.0 AND -55.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -60.0 AND -55.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -65.0 AND -60.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -65.0 AND -60.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -65.0 AND -60.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -65.0 AND -60.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -65.0 AND -60.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -65.0 AND -60.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 220.0 and 225.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN -70.0 AND -65.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 220.0 and 225.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN -75.0 AND -70.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 220.0 and 225.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 165.0 and 170.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 160.0 and 165.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 155.0 and 160.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 150.0 and 155.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 140.0 and 145.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 145.0 and 150.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 135.0 and 140.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 120.0 and 125.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 125.0 and 130.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 130.0 and 135.0 AND decl BETWEEN -80.0 AND -75.0)
 OR (ra BETWEEN 120.0 and 125.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 125.0 and 130.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 130.0 and 135.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 135.0 and 140.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 140.0 and 145.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 145.0 and 150.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 150.0 and 155.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 155.0 and 160.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 160.0 and 165.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 165.0 and 170.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 210.0 and 215.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 215.0 and 220.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 105.0 and 110.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 110.0 and 115.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 115.0 and 120.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 100.0 and 105.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 95.0 and 100.0 AND decl BETWEEN -85.0 AND -80.0)
 OR (ra BETWEEN 110.0 and 115.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 115.0 and 120.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 120.0 and 125.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 125.0 and 130.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 130.0 and 135.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 135.0 and 140.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 140.0 and 145.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 145.0 and 150.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 150.0 and 155.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 155.0 and 160.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 160.0 and 165.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 165.0 and 170.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 170.0 and 175.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 175.0 and 180.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 180.0 and 185.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 185.0 and 190.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 190.0 and 195.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 195.0 and 200.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 200.0 and 205.0 AND decl BETWEEN -90.0 AND -85.0)
 OR (ra BETWEEN 205.0 and 210.0 AND decl BETWEEN -90.0 AND -85.0)
) ORDER BY objectId

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