OGLE-2017-BLG-1257

Tmax	2457943.753	±	0.194	(2017-07-09.25 UT)
tau	66.730	±	21.358
umin	0.043	±	0.016
Amax	23.256	±	8.417
Dmag	3.416	±	0.001
fbl	0.127	±	0.046
Ibl	20.599	±	0.012
I0	22.842	±	0.408

Last Epoch in data: 2458030.51879 (2017-10-04.02 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.