GRB100403_193220_INTEGRAL at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20100404_193127626_381552_89996900    45 stars filter V [86192.3s - 86372.3s] expo=180s elev=48.0deg humid= 69% sunelev=-16.0deg (moon at 177.0deg phase=0.60 elev=-48.0 )
AL_20100404_193446313_381552_89996900    53 stars filter R [86391.9s - 86571.9s] expo=180s elev=47.4deg humid= 69% sunelev=-16.5deg (moon at 177.0deg phase=0.60 elev=-48.0 )
AL_20100404_193803017_381552_89996900    80 stars filter I [86589.4s - 86769.4s] expo=180s elev=46.8deg humid= 70% sunelev=-17.0deg (moon at 177.0deg phase=0.60 elev=-47.0 )
AL_20100404_204121798_381553_89997000    39 stars filter V [90386.9s - 90566.9s] expo=180s elev=35.4deg humid= 65% sunelev=-26.6deg (moon at 176.0deg phase=0.59 elev=-36.0 )
AL_20100404_204440986_381553_89997000    48 stars filter R [90586.5s - 90766.5s] expo=180s elev=34.8deg humid= 65% sunelev=-27.1deg (moon at 176.0deg phase=0.59 elev=-36.0 )
AL_20100404_204759361_381553_89997000    39 stars filter I [90786.0s - 90966.0s] expo=180s elev=34.2deg humid= 64% sunelev=-27.5deg (moon at 176.0deg phase=0.59 elev=-35.0 )
AL_20100404_215124938_381554_89997100    30 stars filter V [94591.5s - 94771.5s] expo=180s elev=22.9deg humid= 56% sunelev=-35.0deg (moon at 176.0deg phase=0.59 elev=-24.0 )
AL_20100404_215441501_381554_89997100    46 stars filter R [94787.0s - 94967.0s] expo=180s elev=22.3deg humid= 56% sunelev=-35.3deg (moon at 176.0deg phase=0.59 elev=-24.0 )
AL_20100404_215759938_381554_89997100    44 stars filter I [94986.6s - 95166.6s] expo=180s elev=21.8deg humid= 56% sunelev=-35.6deg (moon at 176.0deg phase=0.59 elev=-23.0 )
AL_20100404_230121457_381555_89997200    22 stars filter V [98788.1s - 98968.1s] expo=180s elev=11.1deg humid= 52% sunelev=-39.7deg (moon at 175.0deg phase=0.59 elev=-13.0 )
AL_20100404_230440117_381555_89997200    24 stars filter R [98985.6s - 99165.6s] expo=180s elev=10.6deg humid= 52% sunelev=-39.9deg (moon at 175.0deg phase=0.59 elev=-12.0 )
AL_20100404_230759680_381555_89997200    27 stars filter I [99185.2s - 99365.2s] expo=180s elev=10.0deg humid= 52% sunelev=-40.0deg (moon at 175.0deg phase=0.59 elev=-12.0 )
AL_20100405_200123834_381573_89999000    46 stars filter V [174389.0s - 174569.0s] expo=180s elev=41.9deg humid= 40% sunelev=-20.5deg (moon at 165.0deg phase=0.53 elev=-51.0 )
AL_20100405_200439928_381573_89999000    48 stars filter R [174586.6s - 174766.6s] expo=180s elev=41.3deg humid= 40% sunelev=-21.0deg (moon at 165.0deg phase=0.53 elev=-51.0 )
AL_20100405_200755702_381573_89999000    39 stars filter I [174782.1s - 174962.1s] expo=180s elev=40.7deg humid= 39% sunelev=-21.5deg (moon at 165.0deg phase=0.53 elev=-50.0 )
AL_20100405_211114980_381574_89999100    44 stars filter V [178581.6s - 178761.6s] expo=180s elev=29.3deg humid= 40% sunelev=-30.3deg (moon at 164.0deg phase=0.53 elev=-39.0 )
AL_20100405_211430745_381574_89999100    52 stars filter R [178777.2s - 178957.2s] expo=180s elev=28.7deg humid= 40% sunelev=-30.7deg (moon at 164.0deg phase=0.53 elev=-39.0 )
AL_20100405_211750100_381574_89999100    46 stars filter I [178974.7s - 179154.7s] expo=180s elev=28.1deg humid= 40% sunelev=-31.1deg (moon at 164.0deg phase=0.53 elev=-38.0 )
AL_20100405_222121387_381575_89999200    37 stars filter V [182786.3s - 182966.3s] expo=180s elev=17.1deg humid= 43% sunelev=-37.2deg (moon at 163.0deg phase=0.53 elev=-27.0 )
AL_20100405_222440622_381575_89999200    53 stars filter R [182985.8s - 183165.8s] expo=180s elev=16.5deg humid= 42% sunelev=-37.4deg (moon at 163.0deg phase=0.53 elev=-27.0 )
AL_20100405_222758801_381575_89999200    41 stars filter I [183185.4s - 183365.4s] expo=180s elev=16.0deg humid= 43% sunelev=-37.7deg (moon at 163.0deg phase=0.53 elev=-26.0 )
AL_20100405_233123741_381576_89999300    11 stars filter V [186989.0s - 187169.0s] expo=180s elev= 5.8deg humid= 44% sunelev=-40.0deg (moon at 163.0deg phase=0.52 elev=-15.0 )
AL_20100405_233440116_381576_89999300     0 star  filter R [187186.5s - 187366.5s] expo=180s elev= 5.3deg humid= 46% sunelev=-40.0deg (moon at 163.0deg phase=0.52 elev=-15.0 )
AL_20100405_233759194_381576_89999300     0 star  filter I [187384.1s - 187564.1s] expo=180s elev= 4.8deg humid= 46% sunelev=-40.0deg (moon at 163.0deg phase=0.52 elev=-14.0 )
AL_20100406_192550979_381593_90001000    45 stars filter V [258657.6s - 258837.6s] expo=180s elev=47.6deg humid= 34% sunelev=-14.6deg (moon at 153.0deg phase=0.47 elev=-62.0 )
AL_20100406_192909667_381593_90001000    53 stars filter R [258855.1s - 259035.1s] expo=180s elev=47.0deg humid= 34% sunelev=-15.1deg (moon at 153.0deg phase=0.47 elev=-61.0 )
AL_20100406_193229260_381593_90001000    56 stars filter I [259054.7s - 259234.7s] expo=180s elev=46.4deg humid= 34% sunelev=-15.6deg (moon at 153.0deg phase=0.47 elev=-61.0 )
AL_20100406_203121801_381594_90001100    27 stars filter V [262588.2s - 262768.2s] expo=180s elev=35.8deg humid= 32% sunelev=-24.7deg (moon at 152.0deg phase=0.47 elev=-53.0 )
AL_20100406_203440441_381594_90001100    61 stars filter R [262785.7s - 262965.7s] expo=180s elev=35.2deg humid= 30% sunelev=-25.1deg (moon at 152.0deg phase=0.47 elev=-52.0 )
AL_20100406_203758592_381594_90001100    61 stars filter I [262985.2s - 263165.2s] expo=180s elev=34.6deg humid= 29% sunelev=-25.6deg (moon at 152.0deg phase=0.47 elev=-51.0 )
AL_20100406_214120257_381595_90001200    34 stars filter V [266786.8s - 266966.8s] expo=180s elev=23.3deg humid= 26% sunelev=-33.4deg (moon at 152.0deg phase=0.47 elev=-41.0 )
AL_20100406_214438960_381595_90001200    37 stars filter R [266984.4s - 267164.4s] expo=180s elev=22.7deg humid= 26% sunelev=-33.7deg (moon at 152.0deg phase=0.47 elev=-40.0 )
AL_20100406_214758529_381595_90001200    34 stars filter I [267183.9s - 267363.9s] expo=180s elev=22.1deg humid= 26% sunelev=-34.0deg (moon at 152.0deg phase=0.47 elev=-40.0 )
AL_20100406_225118593_381596_90001300    22 stars filter V [270983.5s - 271163.5s] expo=180s elev=11.5deg humid= 26% sunelev=-38.6deg (moon at 151.0deg phase=0.46 elev=-29.0 )
AL_20100406_225437765_381596_90001300    23 stars filter R [271183.0s - 271363.0s] expo=180s elev=10.9deg humid= 26% sunelev=-38.8deg (moon at 151.0deg phase=0.46 elev=-28.0 )
AL_20100406_225755916_381596_90001300    25 stars filter I [271382.6s - 271562.6s] expo=180s elev=10.4deg humid= 26% sunelev=-38.9deg (moon at 151.0deg phase=0.46 elev=-28.0 )
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=181.471622 lat=-2.740294
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=1.393
Assuming Rv=3.1: Av=4.619 Ar=3.724 Ai=2.703 Extinction map E(B-V) from Schlegel:

Field of View is about 56 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 100403: 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 100403 detected by INTEGRAL
(trigger 5996) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 86192.3s after the GRB trigger
(XXXs after the notice). The elevation of the field decreased from
47 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2010-04-03T19:31:47.255

The first image is trailed with a duration of 180.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+86192.3s to t0+86372.3s : R > 15.1

The second image is 180.0s exposure in tracking mode:
t0+86391.9s to t0+86571.9s : R > 16.2

We co-added a series of exposures:
t0+86391.9s to t0+94771.5s : 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 86192.3s 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=181.4716 lat= -2.7403
and the galactic extinction in R band is 3.7 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

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