GCN Circular 3876
Subject
GRB050824, I-band imaging
Date
2005-08-25T16:13:00Z (19 years ago)
From
Arne A. Henden at AAVSO <arne@aavso.org>
D. Hohman (Stone Edge Observatory, NY) reports on behalf of
the AAVSO International High Energy Network on optical observations
of the Swift burst GRB050824 (Campana et al., GCN3866).
Images taken with a 20cm SCT and Ic filter with midpoint time
of 050825 0530UT (6.3hrs after the burst) do not show
any object at the candidate afterglow location by Gorosabel
et al. (GCN3865) down to the DSS-2 N-plate limit (about I=18).
The full report is given below.
The AAVSO thanks the Curry Foundation for support of the
AAVSO International High Energy Network.
---------------------------
Report filed on Thu Aug 25 08:37:34 2005:
Name: Dennis Hohman
email: dhohman@txrx.com
Observer: HDF
Site: Stone Edge Observatory
Location: Orchard Park, NY
LatitudeLongitude:
Elevation: 275 meters
Scope: SCT 20 cm
ScopeFocalRatio: F5.9
CCDVendor: ST7XME
CCDDetector: KAF402E
CCDSize: 752x512
CCDPixelScale: 1.5
CCDFOV: 13x19 arc min
Object: 050824
ObsDate: 08/25/05
ObsMidPointTime: 05:30
TimePerFrame: 240 sec
NumberOfFrames: 13
Filters: I
Processing: Flats/Darks/coadd
Seeing: 4 - 4.5
LimitingMag:
Sky: Clear
afterglowmag:
afterglowerr:
compstars:
Report: Full error circle covered. No new object to the limit of the POSS2/UKSTU IR plate.
comments:
A FITS image has been uploaded to ftp://ftp.aavso.org/grb/DennisHohman_050824_2453608.02609_.fits