GRB100816_005959_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20100816_010046039_100816_00590000    13 stars filter C [ 1339.5s -  1369.5s] expo= 30s elev=72.3deg humid= 71% sunelev=-29.2deg (moon at 136.0deg phase=0.45 elev=-40.0 )
AL_20100816_010130476_100816_00590000    12 stars filter C [ 1384.0s -  1414.0s] expo= 30s elev=72.3deg humid= 71% sunelev=-29.1deg (moon at 136.0deg phase=0.45 elev=-40.0 )
AL_20100816_010218147_100816_00590000    15 stars filter C [ 1431.7s -  1461.7s] expo= 30s elev=72.4deg humid= 71% sunelev=-29.1deg (moon at 136.0deg phase=0.45 elev=-40.0 )
AL_20100816_010305819_100816_00590000    12 stars filter C [ 1479.4s -  1509.4s] expo= 30s elev=72.4deg humid= 71% sunelev=-29.0deg (moon at 136.0deg phase=0.45 elev=-41.0 )
AL_20100816_010353569_100816_00590000    14 stars filter C [ 1527.1s -  1557.1s] expo= 30s elev=72.4deg humid= 71% sunelev=-29.0deg (moon at 136.0deg phase=0.45 elev=-41.0 )
AL_20100816_010437992_100816_00590000    13 stars filter C [ 1571.5s -  1601.5s] expo= 30s elev=72.5deg humid= 71% sunelev=-28.9deg (moon at 135.0deg phase=0.45 elev=-41.0 )
No informations from GCN notice.

Other pages about TAROT Calern observatory observations

Status of this alert received by TAROT Calern observatory.
Sum of images.
Differential photometry.

Galactic coordinates

Galactic coordinates : lon=100.441101 lat=-32.594874
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.050
Assuming Rv=3.1: Av=0.164 Ar=0.133 Ai=0.096 Extinction map E(B-V) from Schlegel:

Field of View is about 81 arcmin (north is NOT up !)

Bibliography (Last GCNC circulars and status of satellites)

GCN infos of this burst
GCN notice of this burst
Sloan Digital Sky Survey Observations of Gamma Ray Burst Fields
GCN info bursts
Gamma-ray burst real-time sky map
ROTSE last GRB images

Example of a GCNC email for this burst
GRB 100816: TAROT Calern observatory optical observations
Klotz A. (CESR-OMP), Gendre B. (IASF),
Boer M. (OHP-OAMP), Atteia J.L. (LATT-OMP) report:

We imaged the field of GRB 100816 detected by SWIFT
(trigger 431764) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 1339.5s after the GRB trigger
(XXXs after the notice). The elevation of the field increased from
72 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2010-08-16T00:37:51.456

The first image is trailed with a duration of 30.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+1339.5s to t0+1369.5s : R > 15.1

The second image is 30.0s exposure in tracking mode:
t0+1384.0s to t0+1414.0s : R > 16.2

We co-added a series of exposures:
t0+1384.0s to t0+1601.5s : R > 17.7
---- YES
We detect a new fading source in the error box given by SWIFT
We detected the candidate couterpart mentioned by XXX et al. (GCNC XXXX)
at the following position (+/- 3 arcsec):

RA(J2000.0) = XXh XXm XX.XXs
DEC(J2000.0) +XXd XX' XX.X"

OT was R~XX.X at 1339.5s after GRB.

Magnitudes were estimated with the nearby USNO-B1 stars
and are not corrected for galactic dust extinction.

N.B. Galactic coordinates are lon=100.4411 lat=-32.5949
and the galactic extinction in R band is 0.1 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

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