GRB10_20170314_G277583 at TAROT Calern observatory

TAROT Calern observatory log of images

IM_20170314_204206078_000000_52957601    71 stars filter C [212356284000.8s - 212356284120.8s] expo=120s elev=57.0deg humid= 74% sunelev=-32.5deg (moon at 106.0deg phase=0.85 elev=+10.0 )
IM_20170314_204416609_000000_52957601    75 stars filter C [212356284131.4s - 212356284251.4s] expo=120s elev=56.6deg humid= 74% sunelev=-32.8deg (moon at 106.0deg phase=0.85 elev=+10.0 )
IM_20170314_224746255_000000_52957701    68 stars filter C [212356291541.0s - 212356291661.0s] expo=120s elev=34.6deg humid= 73% sunelev=-46.8deg (moon at 107.0deg phase=0.84 elev=+28.0 )
IM_20170314_224957661_000000_52957701    66 stars filter C [212356291672.5s - 212356291792.5s] expo=120s elev=34.2deg humid= 72% sunelev=-46.9deg (moon at 107.0deg phase=0.84 elev=+29.0 )
IM_20170315_204206286_000000_52966301    92 stars filter C [212356370401.1s - 212356370521.1s] expo=120s elev=56.3deg humid= 66% sunelev=-32.2deg (moon at 118.0deg phase=0.79 elev= +0.0 )
IM_20170315_204417708_000000_52966301    88 stars filter C [212356370532.5s - 212356370652.5s] expo=120s elev=55.9deg humid= 66% sunelev=-32.5deg (moon at 118.0deg phase=0.79 elev= +0.0 )
IM_20170315_224745976_000000_52966401    83 stars filter C [212356377940.8s - 212356378060.8s] expo=120s elev=33.9deg humid= 72% sunelev=-46.4deg (moon at 119.0deg phase=0.78 elev=+19.0 )
IM_20170315_224957423_000000_52966401    72 stars filter C [212356378072.2s - 212356378192.2s] expo=120s elev=33.5deg humid= 72% sunelev=-46.5deg (moon at 119.0deg phase=0.78 elev=+20.0 )
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=186.263035206 lat=5.24214184418
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.427
Assuming Rv=3.1: Av=1.415 Ar=1.141 Ai=0.828 Extinction map E(B-V) from Schlegel:

Field of View is about 58 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 10_201: TAROT Calern observatory optical observations
Klotz A., Turpin D., Atteia J.L. (CNRS-OMP-IRAP),
Boer, M., Laugier, R. (CNRS-ARTEMIS),
Gendre B. (UVI - Etelman Obs.) report:

We imaged the field of GRB 10_201 detected by XXX
(trigger XXX) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 212356284000.8s after the GRB trigger
(XXXs after the notice). The elevation of the field decreased from
56 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 120.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+212356284000.8s to t0+212356284120.8s : R > 15.1

The second image is 120.0s exposure in tracking mode:
t0+212356284131.4s to t0+212356284251.4s : R > 16.2

We co-added a series of exposures:
t0+212356284131.4s to t0+212356378060.8s : 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 212356284000.8s 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=186.2630 lat= +5.2421
and the galactic extinction in R band is 1.1 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

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