GRBMyrtille_M31_Test at TAROT Calern observatory

TAROT Calern observatory log of images

IM_20091202_182745953_250976_59163901     2 stars filter C [212126538444.0s - 212126538459.0s] expo= 15s elev=78.4deg humid= 41% sunelev=-26.9deg (moon at  55.0deg phase=0.96 elev=+23.0 )
IM_20091202_182820063_250976_59163901     1 star  filter R [212126538478.0s - 212126538493.0s] expo= 15s elev=78.5deg humid= 42% sunelev=-27.0deg (moon at  55.0deg phase=0.96 elev=+23.0 )
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=121.226983 lat=-21.577115
NASA/IPAC-Extragalactic-Database tool for calculate an extinction


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
GRBlog
ROTSE last GRB images

Example of a GCNC email for this burst

gcncirc@capella.gsfc.nasa.gov
GRB Myrtil: 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 Myrtil detected by XXX
(trigger XXX) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 212126538444.0s after the GRB trigger
(XXXs after the notice). The elevation of the field increased from
78 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 1858-11-17T00:00:00.000

The first image is trailed with a duration of 15.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+212126538444.0s to t0+212126538459.0s : R > 15.1

The second image is 15.0s exposure in tracking mode:
t0+212126538478.0s to t0+212126538493.0s : R > 16.2

We co-added a series of exposures:
t0+212126538478.0s to t0+212126538493.0s : R > 17.7
---- YES
We detect a new fading source in the error box given by XXX
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 212126538444.0s 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=121.2270 lat=-21.5771

This message may be cited.
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