OGLE-2018-BLG-0831

Tmax	2458255.534	±	0.152	(2018-05-17.03 UT)
tau	3.114	±	0.175
umin	1.044	±	0.021
Amax	1.312	±	0.013
Dmag	0.295	±	0.001
fbl	1.000	±	0.000
Ibl	18.634	±	0.002
I0	18.634	±	0.002

Last Epoch in data: 2458416.54023 (2018-10-25.04 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.