OGLE-2017-BLG-0640

Tmax	2457887.714	±	0.162	(2017-05-14.21 UT)
tau	11.550	±	0.267
umin	0.681	±	0.017
Amax	1.712	±	0.030
Dmag	0.584	±	0.001
fbl	1.000	±	0.000
Ibl	19.480	±	0.001
I0	19.480	±	0.001

Last Epoch in data: 2458054.50046 (2017-10-28.00 UT)

Click here to download gzipped tar file containing full data set for this event
(including map.dat: O-IV VI map (CMD) or I-band map of the finding chart field).

Go to main EWS page where info on other events can be found.

• Finding chart (available also in FITS format (without cross) and Postscript).
  The image size is 2' x 2', North is up and East is to the left.
  If V-band database is available also the CMD of the finding chart field is displayed.
  
       

• Full span light curve (available also in Postscript format)
  
  

• Event light curve (available also in Postscript format)
  
  

• Photometry data file containing 5 columns: Hel.JD, I magnitude, magnitude error, seeing estimation (in pixels - 0.26"/pixel) and sky level.