GCN Circular 3370
Subject
GRB050505: AAVSO observations
Date
2005-05-06T13:31:30Z (19 years ago)
From
Arne A. Henden at AAVSO <arne@aavso.org>
D. Hohman (Stone Edge Observatory), A. Henden (AAVSO) and A. Price (AAVSO)
report on behalf of the AAVSO International High Energy Network on
optical observations of GRB050505 (GCN #3360, Hurkett et al.):
No afterglow candidate is found in the field or at the location of
the afterglow reported by Cenko et al. (GCN 3366) to a limiting
unfiltered (R-like) magnitude of 18.5 using USNO-A2.0 reference
stars. Observation midpoint time was 02:19 UT on May 6, 2005
(2.9hrs after burst). Details of the observation are below along
with a link to the FITS image. The unfiltered observations have
significant Rc/Ic contribution and so are complementary to the
UVOT observations reported by Rosen, et al. (GCN 3367).
Name: Dennis Hohman
email: dennishohman@adelphia.net
Observer: Dennis Hohman
Site: Stone Edge Observatory
Location: Orchard park, NY
LatitudeLongitude: -78.75, 42.76
Elevation: 950 ft
Scope: C8
ScopeFocalRatio: 6.1
CCDVendor: ST7XME
CCDDetector: KAF401E
CCDSize: 382x255
CCDPixelScale: 3.0
CCDFOV: 12.9x19.4
Object: GRB050505
ObsDate: 05/06/05
ObsMidPointTime: 02:19
TimePerFrame: 240 sec
NumberOfFrames: 7
Filters: CR
Processing: Flatfield,Dark sub, avg
Seeing: 3.8
LimitingMag: 18.7
Sky: Clear, some high clouds
afterglowmag:
afterglowerr:
compstars:
Report: Entire error circle covered. No new object visible to
estimated mag 18.5
comments:
A FITS image has been uploaded to ftp://ftp.aavso.org/grb/DennisHohman_GRB050505_2453496.67896_.fits
The AAVSO thanks the Curry Foundation for their continued support of the
AAVSO International High Energy Network.