GRB110625_210846_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20110625_220809414_000002_01283201    50 stars filter C [79137.0s - 79317.0s] expo=180s elev=42.2deg humid= 74% sunelev=-19.9deg (moon at  98.0deg phase=0.35 elev=-18.0 )
AL_20110625_221120383_000002_01283201    33 stars filter C [79328.0s - 79508.0s] expo=180s elev=42.7deg humid= 74% sunelev=-20.1deg (moon at  98.0deg phase=0.35 elev=-17.0 )
AL_20110625_221431344_000002_01283201    27 stars filter R [79519.0s - 79699.0s] expo=180s elev=43.1deg humid= 75% sunelev=-20.3deg (moon at  98.0deg phase=0.35 elev=-17.0 )
AL_20110625_221741626_000002_01283201    49 stars filter C [79709.2s - 79889.2s] expo=180s elev=43.5deg humid= 75% sunelev=-20.5deg (moon at  98.0deg phase=0.35 elev=-17.0 )
AL_20110625_222052063_000002_01283201    41 stars filter C [79900.0s - 80080.0s] expo=180s elev=43.9deg humid= 75% sunelev=-20.7deg (moon at  98.0deg phase=0.35 elev=-16.0 )
AL_20110625_222402570_000002_01283201    28 stars filter R [80090.5s - 80270.5s] expo=180s elev=44.3deg humid= 75% sunelev=-20.9deg (moon at  98.0deg phase=0.35 elev=-16.0 )
AL_20110625_222809445_000002_01283301    39 stars filter C [80337.4s - 80517.4s] expo=180s elev=44.9deg humid= 76% sunelev=-21.1deg (moon at  98.0deg phase=0.35 elev=-15.0 )
AL_20110625_223120195_000002_01283301    48 stars filter C [80528.1s - 80708.1s] expo=180s elev=45.2deg humid= 75% sunelev=-21.2deg (moon at  98.0deg phase=0.35 elev=-15.0 )
AL_20110625_223429999_000002_01283301    30 stars filter R [80717.9s - 80897.9s] expo=180s elev=45.6deg humid= 75% sunelev=-21.4deg (moon at  98.0deg phase=0.35 elev=-14.0 )
AL_20110625_223740734_000002_01283301    48 stars filter C [80908.6s - 81088.6s] expo=180s elev=46.0deg humid= 75% sunelev=-21.5deg (moon at  98.0deg phase=0.35 elev=-14.0 )
AL_20110625_224051015_000002_01283301    50 stars filter C [81098.9s - 81278.9s] expo=180s elev=46.4deg humid= 74% sunelev=-21.7deg (moon at  98.0deg phase=0.35 elev=-13.0 )
AL_20110625_224401524_000002_01283301    23 stars filter R [81289.4s - 81469.4s] expo=180s elev=46.8deg humid= 74% sunelev=-21.8deg (moon at  98.0deg phase=0.35 elev=-13.0 )
AL_20110625_224811650_000002_01283401    49 stars filter C [81539.6s - 81719.6s] expo=180s elev=47.2deg humid= 76% sunelev=-22.0deg (moon at  98.0deg phase=0.35 elev=-12.0 )
AL_20110625_225122383_000002_01283401    44 stars filter C [81730.3s - 81910.3s] expo=180s elev=47.6deg humid= 76% sunelev=-22.1deg (moon at  98.0deg phase=0.35 elev=-12.0 )
AL_20110625_225432902_000002_01283401    31 stars filter R [81920.8s - 82100.8s] expo=180s elev=47.9deg humid= 77% sunelev=-22.2deg (moon at  98.0deg phase=0.35 elev=-11.0 )
AL_20110625_225743637_000002_01283401    46 stars filter C [82111.5s - 82291.5s] expo=180s elev=48.2deg humid= 77% sunelev=-22.3deg (moon at  98.0deg phase=0.35 elev=-11.0 )
AL_20110625_230054136_000002_01283401    48 stars filter C [82302.0s - 82482.0s] expo=180s elev=48.5deg humid= 77% sunelev=-22.4deg (moon at  98.0deg phase=0.35 elev=-11.0 )
AL_20110625_230404878_000002_01283401    34 stars filter R [82492.8s - 82672.8s] expo=180s elev=48.9deg humid= 78% sunelev=-22.5deg (moon at  98.0deg phase=0.35 elev=-10.0 )
AL_20110625_230812925_000002_01283501    42 stars filter C [82740.8s - 82920.8s] expo=180s elev=49.2deg humid= 78% sunelev=-22.6deg (moon at  98.0deg phase=0.35 elev= -9.0 )
AL_20110625_231122721_000002_01283501    58 stars filter C [82930.6s - 83110.6s] expo=180s elev=49.5deg humid= 78% sunelev=-22.6deg (moon at  98.0deg phase=0.35 elev= -9.0 )
AL_20110625_231433242_000002_01283501    26 stars filter R [83121.1s - 83301.1s] expo=180s elev=49.8deg humid= 79% sunelev=-22.7deg (moon at  98.0deg phase=0.35 elev= -8.0 )
AL_20110625_231743507_000002_01283501    51 stars filter C [83311.4s - 83491.4s] expo=180s elev=50.1deg humid= 79% sunelev=-22.7deg (moon at  98.0deg phase=0.35 elev= -8.0 )
AL_20110625_232054243_000002_01283501    56 stars filter C [83502.2s - 83682.2s] expo=180s elev=50.3deg humid= 80% sunelev=-22.8deg (moon at  99.0deg phase=0.35 elev= -8.0 )
AL_20110625_232404765_000002_01283501    26 stars filter R [83692.7s - 83872.7s] expo=180s elev=50.6deg humid= 81% sunelev=-22.8deg (moon at  99.0deg phase=0.35 elev= -7.0 )
AL_20110625_232816047_000002_01283601    48 stars filter C [83944.0s - 84124.0s] expo=180s elev=50.9deg humid= 83% sunelev=-22.8deg (moon at  99.0deg phase=0.35 elev= -6.0 )
AL_20110625_233125859_000002_01283601    47 stars filter C [84133.8s - 84313.8s] expo=180s elev=51.1deg humid= 85% sunelev=-22.9deg (moon at  99.0deg phase=0.35 elev= -6.0 )
AL_20110625_233436366_000002_01283601    38 stars filter R [84324.3s - 84504.3s] expo=180s elev=51.3deg humid= 86% sunelev=-22.9deg (moon at  99.0deg phase=0.35 elev= -5.0 )
AL_20110625_233746867_000002_01283601    58 stars filter C [84514.8s - 84694.8s] expo=180s elev=51.5deg humid= 87% sunelev=-22.9deg (moon at  99.0deg phase=0.35 elev= -5.0 )
AL_20110625_234057382_000002_01283601    56 stars filter C [84705.3s - 84885.3s] expo=180s elev=51.7deg humid= 87% sunelev=-22.9deg (moon at  99.0deg phase=0.35 elev= -4.0 )
AL_20110625_234407889_000002_01283601    36 stars filter R [84895.8s - 85075.8s] expo=180s elev=51.9deg humid= 88% sunelev=-22.8deg (moon at  99.0deg phase=0.35 elev= -4.0 )
AL_20110625_234817093_000002_01283701    51 stars filter C [85145.0s - 85325.0s] expo=180s elev=52.1deg humid= 88% sunelev=-22.8deg (moon at  99.0deg phase=0.35 elev= -3.0 )
AL_20110625_235127608_000002_01283701    60 stars filter C [85335.5s - 85515.5s] expo=180s elev=52.2deg humid= 87% sunelev=-22.8deg (moon at  99.0deg phase=0.35 elev= -3.0 )
AL_20110625_235438113_000002_01283701    34 stars filter R [85526.0s - 85706.0s] expo=180s elev=52.4deg humid= 87% sunelev=-22.7deg (moon at  99.0deg phase=0.35 elev= -2.0 )
AL_20110625_235748598_000002_01283701    61 stars filter C [85716.5s - 85896.5s] expo=180s elev=52.5deg humid= 87% sunelev=-22.7deg (moon at  99.0deg phase=0.35 elev= -2.0 )
AL_20110626_000059348_000002_01283701    59 stars filter C [85907.2s - 86087.2s] expo=180s elev=52.6deg humid= 87% sunelev=-22.6deg (moon at  99.0deg phase=0.35 elev= -1.0 )
AL_20110626_000409855_000002_01283701    30 stars filter R [86097.8s - 86277.8s] expo=180s elev=52.7deg humid= 88% sunelev=-22.6deg (moon at  99.0deg phase=0.35 elev= -1.0 )
AL_20110626_000828104_000002_01283801    62 stars filter C [86356.0s - 86536.0s] expo=180s elev=52.8deg humid= 87% sunelev=-22.5deg (moon at  99.0deg phase=0.35 elev= +0.0 )
AL_20110626_001138604_000002_01283801    50 stars filter C [86546.5s - 86726.5s] expo=180s elev=52.9deg humid= 88% sunelev=-22.4deg (moon at  99.0deg phase=0.35 elev= +0.0 )
AL_20110626_001449347_000002_01283801    30 stars filter R [86737.3s - 86917.3s] expo=180s elev=52.9deg humid= 89% sunelev=-22.3deg (moon at  99.0deg phase=0.35 elev= +0.0 )
AL_20110626_001759862_000002_01283801    61 stars filter C [86927.7s - 87107.7s] expo=180s elev=53.0deg humid= 88% sunelev=-22.2deg (moon at  99.0deg phase=0.34 elev= +1.0 )
AL_20110626_002110362_000002_01283801    57 stars filter C [87118.3s - 87298.3s] expo=180s elev=53.0deg humid= 88% sunelev=-22.1deg (moon at  99.0deg phase=0.34 elev= +1.0 )
AL_20110626_002420867_000002_01283801    31 stars filter R [87308.8s - 87488.8s] expo=180s elev=53.0deg humid= 88% sunelev=-22.0deg (moon at  99.0deg phase=0.34 elev= +2.0 )
AL_20110626_002830305_000002_01283901    46 stars filter C [87558.2s - 87738.2s] expo=180s elev=53.0deg humid= 87% sunelev=-21.8deg (moon at  99.0deg phase=0.34 elev= +2.0 )
AL_20110626_003140820_000002_01283901    56 stars filter C [87748.7s - 87928.7s] expo=180s elev=53.0deg humid= 86% sunelev=-21.7deg (moon at  99.0deg phase=0.34 elev= +3.0 )
AL_20110626_003451547_000002_01283901    31 stars filter R [87939.4s - 88119.4s] expo=180s elev=53.0deg humid= 86% sunelev=-21.5deg (moon at  99.0deg phase=0.34 elev= +3.0 )
AL_20110626_003802047_000002_01283901    58 stars filter C [88130.0s - 88310.0s] expo=180s elev=52.9deg humid= 86% sunelev=-21.4deg (moon at  99.0deg phase=0.34 elev= +4.0 )
AL_20110626_004112546_000002_01283901    60 stars filter C [88320.5s - 88500.5s] expo=180s elev=52.9deg humid= 86% sunelev=-21.2deg (moon at  99.0deg phase=0.34 elev= +5.0 )
AL_20110626_004423084_000002_01283901    29 stars filter R [88511.0s - 88691.0s] expo=180s elev=52.8deg humid= 85% sunelev=-21.1deg (moon at  99.0deg phase=0.34 elev= +5.0 )
AL_20110626_004822756_000002_01284001    61 stars filter C [88750.7s - 88930.7s] expo=180s elev=52.7deg humid= 85% sunelev=-20.9deg (moon at  99.0deg phase=0.34 elev= +6.0 )
AL_20110626_005133256_000002_01284001    51 stars filter C [88941.2s - 89121.2s] expo=180s elev=52.6deg humid= 86% sunelev=-20.7deg (moon at  99.0deg phase=0.34 elev= +6.0 )
AL_20110626_005443996_000002_01284001    35 stars filter R [89131.9s - 89311.9s] expo=180s elev=52.5deg humid= 86% sunelev=-20.5deg (moon at  99.0deg phase=0.34 elev= +7.0 )
AL_20110626_005754277_000002_01284001    58 stars filter C [89322.2s - 89502.2s] expo=180s elev=52.4deg humid= 86% sunelev=-20.3deg (moon at  99.0deg phase=0.34 elev= +7.0 )
AL_20110626_010105011_000002_01284001    57 stars filter C [89512.9s - 89692.9s] expo=180s elev=52.3deg humid= 86% sunelev=-20.1deg (moon at  99.0deg phase=0.34 elev= +8.0 )
AL_20110626_010415300_000002_01284001    37 stars filter R [89703.2s - 89883.2s] expo=180s elev=52.1deg humid= 86% sunelev=-19.9deg (moon at  99.0deg phase=0.34 elev= +8.0 )
AL_20110626_010824488_000002_01284101    50 stars filter C [89952.4s - 90132.4s] expo=180s elev=51.9deg humid= 86% sunelev=-19.6deg (moon at  99.0deg phase=0.34 elev= +9.0 )
AL_20110626_011135457_000002_01284101    62 stars filter C [90143.4s - 90323.4s] expo=180s elev=51.7deg humid= 85% sunelev=-19.4deg (moon at  99.0deg phase=0.34 elev=+10.0 )
AL_20110626_011445744_000002_01284101    28 stars filter R [90333.6s - 90513.6s] expo=180s elev=51.5deg humid= 85% sunelev=-19.2deg (moon at  99.0deg phase=0.34 elev=+10.0 )
AL_20110626_011756275_000002_01284101    59 stars filter C [90524.1s - 90704.1s] expo=180s elev=51.3deg humid= 85% sunelev=-18.9deg (moon at  99.0deg phase=0.34 elev=+11.0 )
AL_20110626_012106743_000002_01284101    61 stars filter C [90714.6s - 90894.6s] expo=180s elev=51.1deg humid= 85% sunelev=-18.7deg (moon at  99.0deg phase=0.34 elev=+11.0 )
AL_20110626_012417282_000002_01284101    30 stars filter R [90905.2s - 91085.2s] expo=180s elev=50.9deg humid= 85% sunelev=-18.4deg (moon at  99.0deg phase=0.34 elev=+12.0 )
AL_20110626_012826688_000002_01284201    61 stars filter C [91154.6s - 91334.6s] expo=180s elev=50.6deg humid= 85% sunelev=-18.1deg (moon at 100.0deg phase=0.34 elev=+13.0 )
AL_20110626_013137204_000002_01284201    46 stars filter C [91345.1s - 91525.1s] expo=180s elev=50.3deg humid= 85% sunelev=-17.8deg (moon at 100.0deg phase=0.34 elev=+13.0 )
AL_20110626_013447946_000002_01284201    33 stars filter R [91535.8s - 91715.8s] expo=180s elev=50.1deg humid= 85% sunelev=-17.6deg (moon at 100.0deg phase=0.34 elev=+14.0 )
AL_20110626_013758227_000002_01284201    56 stars filter C [91726.1s - 91906.1s] expo=180s elev=49.8deg humid= 85% sunelev=-17.3deg (moon at 100.0deg phase=0.34 elev=+14.0 )
AL_20110626_014108962_000002_01284201    53 stars filter C [91916.9s - 92096.9s] expo=180s elev=49.5deg humid= 86% sunelev=-17.0deg (moon at 100.0deg phase=0.34 elev=+15.0 )
AL_20110626_014419467_000002_01284201    34 stars filter R [92107.4s - 92287.4s] expo=180s elev=49.3deg humid= 85% sunelev=-16.7deg (moon at 100.0deg phase=0.34 elev=+15.0 )
AL_20110626_015433083_000002_01284301    50 stars filter C [92721.0s - 92901.0s] expo=180s elev=48.3deg humid= 86% sunelev=-15.8deg (moon at 100.0deg phase=0.34 elev=+17.0 )
AL_20110626_015743833_000002_01284301    35 stars filter R [92911.7s - 93091.7s] expo=180s elev=47.9deg humid= 86% sunelev=-15.4deg (moon at 100.0deg phase=0.34 elev=+18.0 )
AL_20110626_020054099_000002_01284301    20 stars filter V [93102.0s - 93282.0s] expo=180s elev=47.6deg humid= 86% sunelev=-15.1deg (moon at 100.0deg phase=0.34 elev=+18.0 )
AL_20110626_021933248_000002_01284401    42 stars filter C [94221.1s - 94401.1s] expo=180s elev=45.5deg humid= 86% sunelev=-13.1deg (moon at 100.0deg phase=0.34 elev=+22.0 )
AL_20110626_022243747_000002_01284401    29 stars filter R [94411.6s - 94591.6s] expo=180s elev=45.1deg humid= 86% sunelev=-12.8deg (moon at 100.0deg phase=0.34 elev=+22.0 )
AL_20110626_022554476_000002_01284401    13 stars filter V [94602.4s - 94782.4s] expo=180s elev=44.7deg humid= 86% sunelev=-12.4deg (moon at 100.0deg phase=0.34 elev=+23.0 )
AL_20110626_024412038_000002_01284501    19 stars filter C [95699.9s - 95879.9s] expo=180s elev=42.3deg humid= 87% sunelev=-10.3deg (moon at 100.0deg phase=0.34 elev=+26.0 )
AL_20110626_024722538_000002_01284501    14 stars filter R [95890.4s - 96070.4s] expo=180s elev=41.8deg humid= 87% sunelev=-9.9deg (moon at 100.0deg phase=0.34 elev=+27.0 )
AL_20110626_025033037_000002_01284501     5 stars filter V [96080.9s - 96260.9s] expo=180s elev=41.4deg humid= 87% sunelev=-9.5deg (moon at 100.0deg phase=0.34 elev=+27.0 )
Informations from GCN notice:
This is a GRB
Date of GRB : 2455737.5042548613 2011-06-25T00:06:07.620
Date of notice : 2455737.5047569443 2011-06-25T00:06:50.999
Refined position : yes (error radius=2.2 arcsec)
RA(J2000.0) : 282.513000 18h50m03s1
DEC(J2000.0) : -0.941000 -00d56m27s59
Error box : x=4715:4717 y=-8431:-8430 (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=40.712327 lat=-0.363813
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=1.655
Assuming Rv=3.1: Av=5.486 Ar=4.423 Ai=3.210
extmap.fit: Extinction map E(B-V) from Schlegel:

Field of View is about 55 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 110625: TAROT Calern observatory optical observations
----------------------------------------------------------------------
Klotz A. (CESR-OMP), Gendre B. (ASDC),
Boer M. (OHP-OAMP), Atteia J.L. (LATT-OMP) report:

We imaged the field of GRB 110625 detected by SWIFT
(trigger 456014) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 79137.0s after the GRB trigger
(79093.2s after the notice). The elevation of the field increased from
42 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2011-06-25T00:06:07.200

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+79137.0s to t0+79317.0s : R > 15.1

The second image is 180.0s exposure in tracking mode:
t0+79328.0s to t0+79508.0s : R > 16.2

We co-added a series of exposures:
t0+79328.0s to t0+80517.4s : 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 79137.0s 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= 40.7123 lat= -0.3638
and the galactic extinction in R band is 4.4 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.
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