GRB140311_591392_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20140311_211940699_000003_07242701    13 stars filter C [66130270.8s - 66130330.8s] expo= 60s elev=21.0deg humid= 81% sunelev=-38.9deg (moon at 101.0deg phase=0.70 elev=+57.0 )
AL_20140311_212021527_000003_07242701    10 stars filter C [66130341.5s - 66130371.5s] expo= 30s elev=21.0deg humid= 81% sunelev=-39.1deg (moon at 101.0deg phase=0.70 elev=+57.0 )
AL_20140311_212102454_000003_07242701    10 stars filter C [66130382.5s - 66130412.5s] expo= 30s elev=21.1deg humid= 81% sunelev=-39.2deg (moon at 101.0deg phase=0.70 elev=+57.0 )
AL_20140311_212143423_000003_07242701    10 stars filter C [66130423.5s - 66130453.5s] expo= 30s elev=21.2deg humid= 81% sunelev=-39.3deg (moon at 101.0deg phase=0.70 elev=+57.0 )
AL_20140311_212224641_000003_07242701    11 stars filter C [66130464.7s - 66130494.7s] expo= 30s elev=21.3deg humid= 81% sunelev=-39.4deg (moon at 101.0deg phase=0.70 elev=+57.0 )
AL_20140311_212305673_000003_07242701    10 stars filter C [66130505.7s - 66130535.7s] expo= 30s elev=21.3deg humid= 81% sunelev=-39.4deg (moon at 101.0deg phase=0.70 elev=+57.0 )
AL_20140311_212505688_000003_07242801    14 stars filter C [66130565.7s - 66130655.7s] expo= 90s elev=21.5deg humid= 81% sunelev=-39.6deg (moon at 101.0deg phase=0.70 elev=+57.0 )
AL_20140311_212646813_000003_07242801    13 stars filter C [66130666.9s - 66130756.9s] expo= 90s elev=21.7deg humid= 81% sunelev=-39.8deg (moon at 101.0deg phase=0.70 elev=+56.0 )
AL_20140311_212827579_000003_07242801    13 stars filter C [66130767.7s - 66130857.7s] expo= 90s elev=21.9deg humid= 81% sunelev=-40.0deg (moon at 101.0deg phase=0.70 elev=+56.0 )
AL_20140311_213527552_000003_07243001    14 stars filter C [66131187.6s - 66131277.6s] expo= 90s elev=22.6deg humid= 81% sunelev=-40.9deg (moon at 101.0deg phase=0.70 elev=+55.0 )
AL_20140311_213708084_000003_07243001    13 stars filter C [66131288.1s - 66131378.1s] expo= 90s elev=22.8deg humid= 81% sunelev=-41.1deg (moon at 101.0deg phase=0.70 elev=+55.0 )
AL_20140311_213849255_000003_07243001    13 stars filter C [66131389.3s - 66131479.3s] expo= 90s elev=23.0deg humid= 81% sunelev=-41.3deg (moon at 101.0deg phase=0.70 elev=+55.0 )
AL_20140311_214043255_000003_07243101    15 stars filter C [66131503.3s - 66131593.3s] expo= 90s elev=23.2deg humid= 81% sunelev=-41.6deg (moon at 101.0deg phase=0.70 elev=+55.0 )
AL_20140311_214224463_000003_07243101    13 stars filter C [66131604.5s - 66131694.5s] expo= 90s elev=23.4deg humid= 81% sunelev=-41.8deg (moon at 101.0deg phase=0.70 elev=+55.0 )
AL_20140311_214405447_000003_07243101    14 stars filter C [66131705.5s - 66131795.5s] expo= 90s elev=23.6deg humid= 82% sunelev=-42.0deg (moon at 101.0deg phase=0.70 elev=+54.0 )
AL_20140311_214729088_000003_07243201    16 stars filter C [66131819.2s - 66131999.2s] expo=180s elev=23.9deg humid= 82% sunelev=-42.2deg (moon at 101.0deg phase=0.70 elev=+54.0 )
AL_20140311_215039884_000003_07243201    16 stars filter C [66132010.0s - 66132190.0s] expo=180s elev=24.2deg humid= 82% sunelev=-42.6deg (moon at 101.0deg phase=0.70 elev=+54.0 )
AL_20140311_215350404_000003_07243201    14 stars filter R [66132200.5s - 66132380.5s] expo=180s elev=24.6deg humid= 82% sunelev=-42.9deg (moon at 101.0deg phase=0.70 elev=+53.0 )
AL_20140311_220701987_000003_07243401    17 stars filter C [66132992.0s - 66133172.0s] expo=180s elev=26.1deg humid= 83% sunelev=-44.4deg (moon at 101.0deg phase=0.70 elev=+52.0 )
AL_20140311_221012956_000003_07243401    20 stars filter C [66133183.0s - 66133363.0s] expo=180s elev=26.5deg humid= 84% sunelev=-44.7deg (moon at 101.0deg phase=0.70 elev=+51.0 )
AL_20140311_221324209_000003_07243401    16 stars filter R [66133374.2s - 66133554.2s] expo=180s elev=26.9deg humid= 84% sunelev=-45.0deg (moon at 101.0deg phase=0.70 elev=+51.0 )
AL_20140311_221644897_000003_07243501    19 stars filter C [66133575.0s - 66133755.0s] expo=180s elev=27.3deg humid= 84% sunelev=-45.4deg (moon at 101.0deg phase=0.70 elev=+50.0 )
AL_20140311_221955428_000003_07243501    17 stars filter C [66133765.5s - 66133945.5s] expo=180s elev=27.7deg humid= 85% sunelev=-45.7deg (moon at 101.0deg phase=0.70 elev=+50.0 )
AL_20140311_222306198_000003_07243501    16 stars filter R [66133956.2s - 66134136.2s] expo=180s elev=28.1deg humid= 85% sunelev=-45.9deg (moon at 101.0deg phase=0.70 elev=+49.0 )
AL_20140311_222631308_000003_07243601    16 stars filter C [66134161.4s - 66134341.4s] expo=180s elev=28.5deg humid= 85% sunelev=-46.2deg (moon at 101.0deg phase=0.70 elev=+49.0 )
AL_20140311_222942027_000003_07243601    19 stars filter C [66134352.1s - 66134532.1s] expo=180s elev=28.9deg humid= 85% sunelev=-46.5deg (moon at 101.0deg phase=0.70 elev=+48.0 )
AL_20140311_223252591_000003_07243601    16 stars filter R [66134542.6s - 66134722.6s] expo=180s elev=29.3deg humid= 85% sunelev=-46.8deg (moon at 101.0deg phase=0.70 elev=+48.0 )
AL_20140311_223614919_000003_07243701    16 stars filter C [66134745.0s - 66134925.0s] expo=180s elev=29.7deg humid= 84% sunelev=-47.0deg (moon at 101.0deg phase=0.70 elev=+47.0 )
AL_20140311_223925669_000003_07243701    19 stars filter C [66134935.7s - 66135115.7s] expo=180s elev=30.1deg humid= 84% sunelev=-47.3deg (moon at 101.0deg phase=0.70 elev=+47.0 )
AL_20140311_224236221_000003_07243701    16 stars filter R [66135126.2s - 66135306.2s] expo=180s elev=30.5deg humid= 84% sunelev=-47.5deg (moon at 101.0deg phase=0.70 elev=+46.0 )
AL_20140311_224615940_000003_07243801    20 stars filter C [66135346.0s - 66135526.0s] expo=180s elev=30.9deg humid= 84% sunelev=-47.8deg (moon at 101.0deg phase=0.70 elev=+46.0 )
AL_20140311_224926909_000003_07243801    19 stars filter C [66135537.0s - 66135717.0s] expo=180s elev=31.4deg humid= 85% sunelev=-48.0deg (moon at 101.0deg phase=0.70 elev=+45.0 )
AL_20140311_225237882_000003_07243801    17 stars filter R [66135727.9s - 66135907.9s] expo=180s elev=31.8deg humid= 85% sunelev=-48.2deg (moon at 101.0deg phase=0.70 elev=+45.0 )
AL_20140311_225553945_000003_07243901    19 stars filter C [66135924.0s - 66136104.0s] expo=180s elev=32.2deg humid= 85% sunelev=-48.4deg (moon at 101.0deg phase=0.70 elev=+44.0 )
AL_20140311_225904695_000003_07243901    19 stars filter C [66136114.8s - 66136294.8s] expo=180s elev=32.6deg humid= 85% sunelev=-48.5deg (moon at 101.0deg phase=0.70 elev=+44.0 )
AL_20140311_230215949_000003_07243901    17 stars filter R [66136306.0s - 66136486.0s] expo=180s elev=33.0deg humid= 85% sunelev=-48.7deg (moon at 101.0deg phase=0.70 elev=+43.0 )
AL_20140311_232504816_000003_07244201    19 stars filter C [66137674.9s - 66137854.9s] expo=180s elev=36.0deg humid= 85% sunelev=-49.5deg (moon at 101.0deg phase=0.70 elev=+39.0 )
AL_20140311_232815816_000003_07244201    19 stars filter C [66137865.8s - 66138045.8s] expo=180s elev=36.5deg humid= 85% sunelev=-49.6deg (moon at 101.0deg phase=0.70 elev=+39.0 )
AL_20140311_233127050_000003_07244201    17 stars filter R [66138057.1s - 66138237.1s] expo=180s elev=36.9deg humid= 86% sunelev=-49.7deg (moon at 101.0deg phase=0.70 elev=+38.0 )
AL_20140311_235424768_000003_07244501    19 stars filter C [66139434.8s - 66139614.8s] expo=180s elev=40.1deg humid= 87% sunelev=-49.7deg (moon at 101.0deg phase=0.71 elev=+34.0 )
AL_20140311_235735940_000003_07244501    20 stars filter C [66139626.0s - 66139806.0s] expo=180s elev=40.5deg humid= 87% sunelev=-49.7deg (moon at 101.0deg phase=0.71 elev=+34.0 )
AL_20140312_000046940_000003_07244501    17 stars filter R [66139816.9s - 66139996.9s] expo=180s elev=41.0deg humid= 87% sunelev=-49.6deg (moon at 101.0deg phase=0.71 elev=+33.0 )
AL_20140312_000402991_000003_07244601    19 stars filter C [66140013.0s - 66140193.0s] expo=180s elev=41.4deg humid= 87% sunelev=-49.5deg (moon at 101.0deg phase=0.71 elev=+33.0 )
AL_20140312_000713991_000003_07244601    17 stars filter C [66140204.0s - 66140384.0s] expo=180s elev=41.9deg humid= 88% sunelev=-49.5deg (moon at 101.0deg phase=0.71 elev=+32.0 )
AL_20140312_001025209_000003_07244601    16 stars filter R [66140395.2s - 66140575.2s] expo=180s elev=42.3deg humid= 88% sunelev=-49.4deg (moon at 101.0deg phase=0.71 elev=+32.0 )
AL_20140312_001345433_000003_07244701    17 stars filter C [66140595.5s - 66140775.5s] expo=180s elev=42.8deg humid= 88% sunelev=-49.2deg (moon at 101.0deg phase=0.71 elev=+31.0 )
AL_20140312_001656198_000003_07244701    17 stars filter C [66140786.2s - 66140966.2s] expo=180s elev=43.3deg humid= 88% sunelev=-49.1deg (moon at 101.0deg phase=0.71 elev=+30.0 )
AL_20140312_002006886_000003_07244701    17 stars filter R [66140977.0s - 66141157.0s] expo=180s elev=43.7deg humid= 88% sunelev=-49.0deg (moon at 101.0deg phase=0.71 elev=+30.0 )
AL_20140312_002337906_000003_07244801    15 stars filter C [66141187.9s - 66141367.9s] expo=180s elev=44.2deg humid= 88% sunelev=-48.8deg (moon at 101.0deg phase=0.71 elev=+29.0 )
AL_20140312_002648844_000003_07244801    16 stars filter C [66141378.9s - 66141558.9s] expo=180s elev=44.7deg humid= 89% sunelev=-48.7deg (moon at 101.0deg phase=0.71 elev=+29.0 )
AL_20140312_002959859_000003_07244801    13 stars filter R [66141569.9s - 66141749.9s] expo=180s elev=45.1deg humid= 90% sunelev=-48.5deg (moon at 101.0deg phase=0.71 elev=+28.0 )
AL_20140312_004311082_000003_07245001    17 stars filter C [66142361.2s - 66142541.2s] expo=180s elev=47.1deg humid= 89% sunelev=-47.7deg (moon at 101.0deg phase=0.71 elev=+26.0 )
AL_20140312_004622119_000003_07245001    19 stars filter C [66142552.2s - 66142732.2s] expo=180s elev=47.5deg humid= 89% sunelev=-47.5deg (moon at 101.0deg phase=0.71 elev=+25.0 )
AL_20140312_004932603_000003_07245001    17 stars filter R [66142742.7s - 66142922.7s] expo=180s elev=48.0deg humid= 88% sunelev=-47.3deg (moon at 101.0deg phase=0.71 elev=+25.0 )
AL_20140312_010637097_000003_07245301    19 stars filter C [66143767.1s - 66143947.1s] expo=180s elev=50.5deg humid= 91% sunelev=-45.8deg (moon at 101.0deg phase=0.71 elev=+22.0 )
AL_20140312_010948316_000003_07245301    17 stars filter C [66143958.3s - 66144138.3s] expo=180s elev=51.0deg humid= 91% sunelev=-45.6deg (moon at 101.0deg phase=0.71 elev=+21.0 )
AL_20140312_011259753_000003_07245301    15 stars filter R [66144149.8s - 66144329.8s] expo=180s elev=51.5deg humid= 92% sunelev=-45.2deg (moon at 101.0deg phase=0.71 elev=+21.0 )
AL_20140312_011638322_000003_07245401    15 stars filter C [66144368.4s - 66144548.4s] expo=180s elev=52.0deg humid= 92% sunelev=-44.9deg (moon at 101.0deg phase=0.71 elev=+20.0 )
AL_20140312_011949306_000003_07245401    14 stars filter C [66144559.4s - 66144739.4s] expo=180s elev=52.5deg humid= 92% sunelev=-44.6deg (moon at 101.0deg phase=0.71 elev=+19.0 )
AL_20140312_012259791_000003_07245401    14 stars filter R [66144749.9s - 66144929.9s] expo=180s elev=53.0deg humid= 93% sunelev=-44.2deg (moon at 101.0deg phase=0.71 elev=+19.0 )
AL_20140312_012624967_000003_07245501    15 stars filter C [66144955.0s - 66145135.0s] expo=180s elev=53.5deg humid= 93% sunelev=-43.9deg (moon at 101.0deg phase=0.71 elev=+18.0 )
AL_20140312_012935452_000003_07245501    14 stars filter C [66145145.5s - 66145325.5s] expo=180s elev=54.0deg humid= 93% sunelev=-43.5deg (moon at 101.0deg phase=0.71 elev=+18.0 )
AL_20140312_013245967_000003_07245501    13 stars filter R [66145336.0s - 66145516.0s] expo=180s elev=54.4deg humid= 92% sunelev=-43.2deg (moon at 101.0deg phase=0.71 elev=+17.0 )
AL_20140312_015039980_000003_07245601    12 stars filter C [66146410.1s - 66146590.1s] expo=180s elev=57.1deg humid= 94% sunelev=-41.0deg (moon at 101.0deg phase=0.71 elev=+14.0 )
AL_20140312_015350715_000003_07245601     6 stars filter R [66146600.8s - 66146780.8s] expo=180s elev=57.6deg humid= 93% sunelev=-40.6deg (moon at 101.0deg phase=0.71 elev=+13.0 )
AL_20140312_015701281_000003_07245601     3 stars filter V [66146791.3s - 66146971.3s] expo=180s elev=58.1deg humid= 94% sunelev=-40.2deg (moon at 101.0deg phase=0.71 elev=+13.0 )
AL_20140312_021510788_000003_07245701     3 stars filter C [66147880.9s - 66148060.9s] expo=180s elev=60.9deg humid= 94% sunelev=-37.8deg (moon at 101.0deg phase=0.71 elev=+10.0 )
AL_20140312_021821591_000003_07245701     2 stars filter R [66148071.6s - 66148251.6s] expo=180s elev=61.3deg humid= 94% sunelev=-37.3deg (moon at 101.0deg phase=0.71 elev= +9.0 )
AL_20140312_022132810_000003_07245701     3 stars filter V [66148262.8s - 66148442.8s] expo=180s elev=61.8deg humid= 94% sunelev=-36.9deg (moon at 101.0deg phase=0.71 elev= +9.0 )
AL_20140312_035304568_000003_07246101    20 stars filter C [66153754.6s - 66153934.6s] expo=180s elev=75.2deg humid= 89% sunelev=-22.2deg (moon at 100.0deg phase=0.71 elev= -6.0 )
AL_20140312_035615787_000003_07246101    21 stars filter R [66153945.8s - 66154125.8s] expo=180s elev=75.6deg humid= 88% sunelev=-21.7deg (moon at 100.0deg phase=0.71 elev= -6.0 )
AL_20140312_035926965_000003_07246101    21 stars filter V [66154137.0s - 66154317.0s] expo=180s elev=76.0deg humid= 87% sunelev=-21.1deg (moon at 100.0deg phase=0.72 elev= -7.0 )
AL_20140312_041736034_000003_07246201    25 stars filter C [66155226.0s - 66155406.0s] expo=180s elev=78.1deg humid= 85% sunelev=-18.0deg (moon at 100.0deg phase=0.72 elev= -9.0 )
AL_20140312_042046542_000003_07246201    23 stars filter R [66155416.6s - 66155596.6s] expo=180s elev=78.5deg humid= 85% sunelev=-17.4deg (moon at 100.0deg phase=0.72 elev=-10.0 )
AL_20140312_042356964_000003_07246201    20 stars filter V [66155607.1s - 66155787.1s] expo=180s elev=78.8deg humid= 85% sunelev=-16.8deg (moon at 100.0deg phase=0.72 elev=-10.0 )
AL_20140312_044205682_000003_07246301    25 stars filter C [66156695.7s - 66156875.7s] expo=180s elev=80.3deg humid= 83% sunelev=-13.6deg (moon at 100.0deg phase=0.72 elev=-13.0 )
AL_20140312_044516666_000003_07246301    22 stars filter R [66156886.7s - 66157066.7s] expo=180s elev=80.5deg humid= 82% sunelev=-13.0deg (moon at 100.0deg phase=0.72 elev=-14.0 )
AL_20140312_044827577_000003_07246301    20 stars filter V [66157077.7s - 66157257.7s] expo=180s elev=80.7deg humid= 80% sunelev=-12.5deg (moon at 100.0deg phase=0.72 elev=-14.0 )
Informations from GCN notice:
This is not a GRB (a retractation has been edited)
Date of GRB : 2455962.9912571758 2012-02-05T11:47:24.620
Date of notice : 2455962.9915046296 2012-02-05T11:47:46.000
Refined position : no
RA(J2000.0) : 40.1 02h40m24s0
DEC(J2000.0) : 61.22 +61d13m12s00
Error box : x=-34455:-34345 y=118860:118970 (pixels)

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=80.3933680135 lat=39.5637224857
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.058
Assuming Rv=3.1: Av=0.191 Ar=0.154 Ai=0.112
extmap.fit: Extinction map E(B-V) from Schlegel:

Field of View is about 91 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
GRBlog
ROTSE last GRB images

Example of a GCNC email for this burst

gcncirc@capella.gsfc.nasa.gov
GRB 140311: TAROT Calern observatory optical observations
----------------------------------------------------------------------
Klotz A. (IRAP-CNRS-OMP), Gendre B. (IRAP-CNRS-OMP),
Boer M., Siellez K., Dereli H., Bardho O. (UNS-CNRS-OCA),
Atteia J.L. (IRAP-CNRS-OMP) report:

We imaged the field of GRB 140311 detected by SWIFT
(trigger 513505) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 66130270.8s after the GRB trigger
(66130249.7s after the notice). The elevation of the field increased from
20 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2012-02-05T11:47:24.864

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+66130270.8s to t0+66130330.8s : R > 15.1

The second image is 30.0s exposure in tracking mode:
t0+66130341.5s to t0+66130371.5s : R > 16.2

We co-added a series of exposures:
t0+66130341.5s to t0+66130655.7s : 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 66130270.8s 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= 80.3934 lat=+39.5637
and the galactic extinction in R band is 0.2 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.
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