GRB161214_044616_INTEGRAL at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20161214_044746141_000000_00000001     0 star  filter C [   24.6s -    84.6s] expo= 60s elev=45.2deg humid= 51% sunelev=-22.7deg (moon at 103.0deg phase=0.97 elev=+20.0 )
AL_20161214_044830969_000000_00000001     6 stars filter C [   99.5s -   129.5s] expo= 30s elev=45.3deg humid= 51% sunelev=-22.5deg (moon at 103.0deg phase=0.97 elev=+20.0 )
AL_20161214_044911532_000000_00000001     6 stars filter C [  140.0s -   170.0s] expo= 30s elev=45.4deg humid= 51% sunelev=-22.4deg (moon at 103.0deg phase=0.97 elev=+20.0 )
AL_20161214_044952751_000000_00000001     6 stars filter C [  181.3s -   211.3s] expo= 30s elev=45.5deg humid= 51% sunelev=-22.2deg (moon at 103.0deg phase=0.97 elev=+20.0 )
AL_20161214_045033548_000000_00000001     6 stars filter C [  222.0s -   252.0s] expo= 30s elev=45.5deg humid= 51% sunelev=-22.1deg (moon at 103.0deg phase=0.97 elev=+20.0 )
AL_20161214_045114282_000000_00000001     6 stars filter C [  262.8s -   292.8s] expo= 30s elev=45.6deg humid= 51% sunelev=-22.0deg (moon at 103.0deg phase=0.97 elev=+20.0 )
AL_20161214_045255735_000000_00000001     6 stars filter C [  304.2s -   394.2s] expo= 90s elev=45.8deg humid= 51% sunelev=-21.9deg (moon at 103.0deg phase=0.97 elev=+20.0 )
AL_20161214_045437642_000000_00000001    11 stars filter C [  406.1s -   496.1s] expo= 90s elev=46.0deg humid= 51% sunelev=-21.6deg (moon at 103.0deg phase=0.97 elev=+19.0 )
AL_20161214_045618610_000000_00000001     9 stars filter C [  507.1s -   597.1s] expo= 90s elev=46.2deg humid= 50% sunelev=-21.3deg (moon at 103.0deg phase=0.97 elev=+19.0 )
AL_20161214_045759142_000000_00000001     9 stars filter C [  607.6s -   697.6s] expo= 90s elev=46.4deg humid= 50% sunelev=-21.0deg (moon at 103.0deg phase=0.97 elev=+19.0 )
AL_20161214_045939892_000000_00000001     7 stars filter C [  708.4s -   798.4s] expo= 90s elev=46.5deg humid= 50% sunelev=-20.7deg (moon at 103.0deg phase=0.97 elev=+18.0 )
AL_20161214_050120844_000000_00000001     8 stars filter C [  809.3s -   899.3s] expo= 90s elev=46.7deg humid= 50% sunelev=-20.4deg (moon at 103.0deg phase=0.97 elev=+18.0 )
AL_20161214_050301813_000000_00000001     9 stars filter C [  910.3s -  1000.3s] expo= 90s elev=46.9deg humid= 50% sunelev=-20.1deg (moon at 103.0deg phase=0.97 elev=+18.0 )
AL_20161214_050442563_000000_00000001     8 stars filter C [ 1011.1s -  1101.1s] expo= 90s elev=47.1deg humid= 50% sunelev=-19.8deg (moon at 103.0deg phase=0.97 elev=+18.0 )
AL_20161214_050623563_000000_00000001     7 stars filter C [ 1112.1s -  1202.1s] expo= 90s elev=47.3deg humid= 50% sunelev=-19.5deg (moon at 103.0deg phase=0.97 elev=+17.0 )
AL_20161214_050804813_000000_00000001     6 stars filter C [ 1213.3s -  1303.3s] expo= 90s elev=47.5deg humid= 50% sunelev=-19.2deg (moon at 103.0deg phase=0.97 elev=+17.0 )
AL_20161214_050945563_000000_00000001     6 stars filter C [ 1314.0s -  1404.0s] expo= 90s elev=47.7deg humid= 50% sunelev=-18.9deg (moon at 103.0deg phase=0.97 elev=+17.0 )
AL_20161214_051127221_000000_00000001     8 stars filter C [ 1415.7s -  1505.7s] expo= 90s elev=47.8deg humid= 49% sunelev=-18.6deg (moon at 103.0deg phase=0.97 elev=+16.0 )
AL_20161214_051308237_000000_00000001     8 stars filter C [ 1516.7s -  1606.7s] expo= 90s elev=48.0deg humid= 49% sunelev=-18.3deg (moon at 103.0deg phase=0.97 elev=+16.0 )
AL_20161214_051619190_000000_00000001     9 stars filter C [ 1617.7s -  1797.7s] expo=180s elev=48.3deg humid= 50% sunelev=-18.0deg (moon at 103.0deg phase=0.97 elev=+16.0 )
AL_20161214_051929674_000000_00000001    11 stars filter C [ 1808.2s -  1988.2s] expo=180s elev=48.6deg humid= 50% sunelev=-17.5deg (moon at 103.0deg phase=0.97 elev=+15.0 )
AL_20161214_052241136_000000_00000001    11 stars filter C [ 1999.6s -  2179.6s] expo=180s elev=48.9deg humid= 50% sunelev=-16.9deg (moon at 103.0deg phase=0.97 elev=+15.0 )
AL_20161214_052551917_000000_00000001     8 stars filter C [ 2190.4s -  2370.4s] expo=180s elev=49.2deg humid= 49% sunelev=-16.4deg (moon at 103.0deg phase=0.97 elev=+14.0 )
AL_20161214_052902902_000000_00000001    11 stars filter C [ 2381.3s -  2561.3s] expo=180s elev=49.5deg humid= 49% sunelev=-15.8deg (moon at 103.0deg phase=0.97 elev=+14.0 )
AL_20161214_053213568_000000_00000001     8 stars filter C [ 2572.1s -  2752.1s] expo=180s elev=49.8deg humid= 49% sunelev=-15.3deg (moon at 103.0deg phase=0.97 elev=+13.0 )
AL_20161214_053524818_000000_00000001    12 stars filter C [ 2763.3s -  2943.3s] expo=180s elev=50.0deg humid= 49% sunelev=-14.7deg (moon at 103.0deg phase=0.97 elev=+12.0 )
AL_20161214_053835474_000000_00000001    11 stars filter C [ 2954.1s -  3134.1s] expo=180s elev=50.3deg humid= 49% sunelev=-14.2deg (moon at 102.0deg phase=0.97 elev=+12.0 )
AL_20161214_054146528_000000_00000001     9 stars filter C [ 3145.0s -  3325.0s] expo=180s elev=50.5deg humid= 49% sunelev=-13.7deg (moon at 102.0deg phase=0.97 elev=+11.0 )
AL_20161214_054431684_000000_00000001     0 star  filter C [ 3335.8s -  3515.8s] expo=180s elev=50.8deg humid= 49% sunelev=-13.1deg (moon at 102.0deg phase=0.97 elev=+11.0 )
AL_20161214_055711088_000000_42338701     0 star  filter C [ 4069.6s -  4249.6s] expo=180s elev=51.6deg humid= 50% sunelev=-11.0deg (moon at 102.0deg phase=0.97 elev= +9.0 )
AL_20161214_060021853_000000_42338701     0 star  filter C [ 4260.3s -  4440.3s] expo=180s elev=51.8deg humid= 50% sunelev=-10.5deg (moon at 102.0deg phase=0.97 elev= +8.0 )
AL_20161214_060332582_000000_42338701     0 star  filter C [ 4451.1s -  4631.1s] expo=180s elev=51.9deg humid= 51% sunelev=-10.0deg (moon at 102.0deg phase=0.97 elev= +8.0 )
Informations from GCN notice:
This is a GRB
Date of the alert : 2457736.6988 2016-12-14T04:46:16.320
Decoded useful notice informations.
RA(J2000.0) : 190.756616824 12h43m01s5
DEC(J2000.0) : 6.85308608822 +06d51m11s10
Error radius : 2.5 arcmin
Error box : x=-7:84 y=50:141 (pixels)

Other pages about TAROT Calern observatory observations

Sum of images.
Differential photometry.

Galactic coordinates

Galactic coordinates : lon=296.856601419 lat=69.5982005967
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.024
Assuming Rv=3.1: Av=0.079 Ar=0.064 Ai=0.046 Extinction map E(B-V) from Schlegel:

Field of View is about 221 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 161214: 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 161214 detected by INTEGRAL
(trigger 7644) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 24.6s after the GRB trigger
(17.7s after the notice). The elevation of the field increased from
45 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2016-12-14T04:46:16.320

The first image is trailed with a duration of 60.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+24.6s to t0+84.6s : R > 15.1

The second image is 30.0s exposure in tracking mode:
t0+99.5s to t0+129.5s : R > 16.2

We co-added a series of exposures:
t0+99.5s to t0+394.2s : R > 17.7
---- YES
We detect a new fading source in the error box given by INTEGRAL
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 24.6s 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=296.8566 lat=+69.5982
and the galactic extinction in R band is 0.1 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.