OGLE-2017-BLG-1640

Tmax	2457986.952	±	0.005	(2017-08-21.45 UT)
tau	2.951	±	0.166
umin	0.113	±	0.020
Amax	8.905	±	1.585
Dmag	2.374	±	0.000
fbl	0.448	±	0.049
Ibl	16.149	±	0.000
I0	17.021	±	0.120

Last Epoch in data: 2458046.51211 (2017-10-20.01 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.