Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
Announcing GCN Classic Migration Survey, End of Legacy Circulars Email. See news and announcements

GCN Circular 90

Subject
GRB980519 I-band observations
Date
1998-05-22T22:23:30Z (27 years ago)
From
Francisco J Castander at UChicago <fjc@oddjob.uchicago.edu>
GRB980519 I-band observations

F. J. Castander, R. Evans, D. E. Reichart, D. Q. Lamb
and W. Wild, University of Chicago, report:

"We made I-band observations of the BeppoSAX WFC error 
circle for GRB980519 (GCN #75) on May 21.34 - 21.36 UT and 
May 22.27 - 22.38 UT, using the 41-inch telescope at Yerkes 
Observatory. On May 21.35, we detected the optical transient 
reported by Jaunsen et al. (GCN #78) at about I = 21.9 mag, 
near the limiting magnitude of the image. On May 22.33, we did 
not detect the optical transient down to an image limiting 
magnituide of I = 21.0 mag. These magnitudes are tied to 
the Bloom et al. (GCN #87) calibration standards.  

This report may be cited."
Looking for U.S. government information and services? Visit USA.gov