OGLE-2017-BLG-0257

Tmax	2457810.395	±	0.257	(2017-02-25.89 UT)
tau	24.259	±	0.848
umin	0.253	±	0.005
Amax	4.048	±	0.077
Dmag	1.518	±	0.002
fbl	1.000	±	0.000
Ibl	19.693	±	0.006
I0	19.693	±	0.006

Last Epoch in data: 2458053.53254 (2017-10-27.03 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.