GRB110820_173859_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20110820_192419218_000002_12827901    31 stars filter C [735297.1s - 735357.1s] expo= 60s elev=45.0deg humid= 82% sunelev=-10.1deg (moon at  62.0deg phase=0.57 elev=-15.0 )
AL_20110820_192459015_000002_12827901    25 stars filter C [735366.9s - 735396.9s] expo= 30s elev=45.1deg humid= 82% sunelev=-10.3deg (moon at  62.0deg phase=0.57 elev=-15.0 )
AL_20110820_192539078_000002_12827901    23 stars filter C [735406.9s - 735436.9s] expo= 30s elev=45.1deg humid= 82% sunelev=-10.4deg (moon at  62.0deg phase=0.57 elev=-15.0 )
AL_20110820_192620032_000002_12827901    29 stars filter C [735447.9s - 735477.9s] expo= 30s elev=45.2deg humid= 82% sunelev=-10.5deg (moon at  62.0deg phase=0.57 elev=-15.0 )
AL_20110820_192701001_000002_12827901    25 stars filter C [735488.9s - 735518.9s] expo= 30s elev=45.2deg humid= 82% sunelev=-10.6deg (moon at  62.0deg phase=0.57 elev=-15.0 )
AL_20110820_192742000_000002_12827901    30 stars filter C [735529.8s - 735559.8s] expo= 30s elev=45.3deg humid= 81% sunelev=-10.7deg (moon at  62.0deg phase=0.57 elev=-15.0 )
AL_20110820_193236016_000002_12828001    49 stars filter C [735763.9s - 735853.9s] expo= 90s elev=45.7deg humid= 81% sunelev=-11.3deg (moon at  62.0deg phase=0.57 elev=-14.0 )
AL_20110820_193416309_000002_12828001    51 stars filter C [735864.2s - 735954.2s] expo= 90s elev=45.8deg humid= 81% sunelev=-11.6deg (moon at  62.0deg phase=0.57 elev=-14.0 )
AL_20110820_193557059_000002_12828001    42 stars filter R [735964.9s - 736054.9s] expo= 90s elev=45.9deg humid= 81% sunelev=-11.8deg (moon at  62.0deg phase=0.57 elev=-14.0 )
AL_20110820_193737996_000002_12828001    57 stars filter C [736065.9s - 736155.9s] expo= 90s elev=46.1deg humid= 80% sunelev=-12.1deg (moon at  62.0deg phase=0.57 elev=-13.0 )
AL_20110820_193918528_000002_12828001    58 stars filter C [736166.4s - 736256.4s] expo= 90s elev=46.2deg humid= 80% sunelev=-12.4deg (moon at  62.0deg phase=0.57 elev=-13.0 )
AL_20110820_194058559_000002_12828001    48 stars filter R [736266.4s - 736356.4s] expo= 90s elev=46.4deg humid= 80% sunelev=-12.6deg (moon at  62.0deg phase=0.57 elev=-13.0 )
AL_20110820_194334738_000002_12828101    72 stars filter C [736422.6s - 736512.6s] expo= 90s elev=46.6deg humid= 80% sunelev=-13.0deg (moon at  62.0deg phase=0.57 elev=-13.0 )
AL_20110820_194514799_000002_12828101    76 stars filter C [736522.7s - 736612.7s] expo= 90s elev=46.7deg humid= 79% sunelev=-13.3deg (moon at  62.0deg phase=0.57 elev=-12.0 )
AL_20110820_194655519_000002_12828101    59 stars filter R [736623.4s - 736713.4s] expo= 90s elev=46.9deg humid= 78% sunelev=-13.5deg (moon at  62.0deg phase=0.57 elev=-12.0 )
AL_20110820_194836503_000002_12828101    68 stars filter C [736724.4s - 736814.4s] expo= 90s elev=47.0deg humid= 77% sunelev=-13.8deg (moon at  62.0deg phase=0.57 elev=-12.0 )
AL_20110820_195017018_000002_12828101    77 stars filter C [736824.9s - 736914.9s] expo= 90s elev=47.1deg humid= 76% sunelev=-14.0deg (moon at  62.0deg phase=0.57 elev=-12.0 )
AL_20110820_195157034_000002_12828101    58 stars filter R [736924.9s - 737014.9s] expo= 90s elev=47.3deg humid= 75% sunelev=-14.3deg (moon at  62.0deg phase=0.57 elev=-12.0 )
AL_20110820_195955479_000002_12828201    84 stars filter C [737313.4s - 737493.4s] expo=180s elev=47.9deg humid= 75% sunelev=-15.3deg (moon at  62.0deg phase=0.56 elev=-11.0 )
AL_20110820_200306234_000002_12828201    87 stars filter C [737504.1s - 737684.1s] expo=180s elev=48.2deg humid= 75% sunelev=-15.7deg (moon at  62.0deg phase=0.56 elev=-10.0 )
AL_20110820_200616733_000002_12828201    75 stars filter R [737694.6s - 737874.6s] expo=180s elev=48.4deg humid= 75% sunelev=-16.2deg (moon at  62.0deg phase=0.56 elev=-10.0 )
AL_20110820_200927233_000002_12828201    85 stars filter C [737885.1s - 738065.1s] expo=180s elev=48.7deg humid= 75% sunelev=-16.7deg (moon at  62.0deg phase=0.56 elev= -9.0 )
AL_20110820_201237766_000002_12828201    89 stars filter C [738075.6s - 738255.6s] expo=180s elev=49.0deg humid= 75% sunelev=-17.1deg (moon at  62.0deg phase=0.56 elev= -9.0 )
AL_20110820_201548475_000002_12828201    71 stars filter R [738266.4s - 738446.4s] expo=180s elev=49.2deg humid= 75% sunelev=-17.6deg (moon at  62.0deg phase=0.56 elev= -8.0 )
AL_20110820_201959569_000002_12828301    92 stars filter C [738517.4s - 738697.4s] expo=180s elev=49.6deg humid= 75% sunelev=-18.2deg (moon at  62.0deg phase=0.56 elev= -8.0 )
AL_20110820_202310310_000002_12828301    84 stars filter C [738708.2s - 738888.2s] expo=180s elev=49.8deg humid= 74% sunelev=-18.6deg (moon at  62.0deg phase=0.56 elev= -7.0 )
AL_20110820_202621044_000002_12828301    72 stars filter R [738898.9s - 739078.9s] expo=180s elev=50.1deg humid= 73% sunelev=-19.1deg (moon at  62.0deg phase=0.56 elev= -7.0 )
AL_20110820_202931310_000002_12828301    89 stars filter C [739089.2s - 739269.2s] expo=180s elev=50.4deg humid= 72% sunelev=-19.5deg (moon at  62.0deg phase=0.56 elev= -6.0 )
AL_20110820_203241576_000002_12828301    91 stars filter C [739279.5s - 739459.5s] expo=180s elev=50.6deg humid= 70% sunelev=-19.9deg (moon at  62.0deg phase=0.56 elev= -6.0 )
AL_20110820_203552315_000002_12828301    77 stars filter R [739470.2s - 739650.2s] expo=180s elev=50.9deg humid= 69% sunelev=-20.4deg (moon at  62.0deg phase=0.56 elev= -5.0 )
AL_20110820_204002441_000002_12828401    84 stars filter C [739720.3s - 739900.3s] expo=180s elev=51.2deg humid= 69% sunelev=-20.9deg (moon at  62.0deg phase=0.56 elev= -5.0 )
AL_20110820_204313163_000002_12828401    82 stars filter C [739911.0s - 740091.0s] expo=180s elev=51.5deg humid= 69% sunelev=-21.3deg (moon at  62.0deg phase=0.56 elev= -4.0 )
AL_20110820_204623694_000002_12828401    71 stars filter R [740101.6s - 740281.6s] expo=180s elev=51.8deg humid= 68% sunelev=-21.7deg (moon at  62.0deg phase=0.56 elev= -4.0 )
AL_20110820_204934429_000002_12828401    87 stars filter C [740292.3s - 740472.3s] expo=180s elev=52.0deg humid= 68% sunelev=-22.1deg (moon at  62.0deg phase=0.56 elev= -3.0 )
AL_20110820_205244710_000002_12828401    86 stars filter C [740482.6s - 740662.6s] expo=180s elev=52.3deg humid= 68% sunelev=-22.5deg (moon at  62.0deg phase=0.56 elev= -3.0 )
AL_20110820_205555435_000002_12828401    77 stars filter R [740673.3s - 740853.3s] expo=180s elev=52.5deg humid= 67% sunelev=-22.9deg (moon at  62.0deg phase=0.56 elev= -2.0 )
AL_20110820_210003232_000002_12828501    88 stars filter C [740921.1s - 741101.1s] expo=180s elev=52.9deg humid= 67% sunelev=-23.5deg (moon at  62.0deg phase=0.56 elev= -2.0 )
AL_20110820_210313535_000002_12828501    89 stars filter C [741111.4s - 741291.4s] expo=180s elev=53.1deg humid= 68% sunelev=-23.8deg (moon at  62.0deg phase=0.56 elev= -1.0 )
AL_20110820_210624270_000002_12828501    72 stars filter R [741302.1s - 741482.1s] expo=180s elev=53.4deg humid= 67% sunelev=-24.2deg (moon at  62.0deg phase=0.56 elev= -1.0 )
AL_20110820_210934738_000002_12828501    88 stars filter C [741492.6s - 741672.6s] expo=180s elev=53.6deg humid= 67% sunelev=-24.6deg (moon at  62.0deg phase=0.56 elev= +0.0 )
AL_20110820_211245051_000002_12828501    89 stars filter C [741682.9s - 741862.9s] expo=180s elev=53.9deg humid= 67% sunelev=-25.0deg (moon at  62.0deg phase=0.56 elev= +0.0 )
AL_20110820_211555789_000002_12828501    75 stars filter R [741873.7s - 742053.7s] expo=180s elev=54.1deg humid= 68% sunelev=-25.3deg (moon at  62.0deg phase=0.56 elev= +0.0 )
AL_20110820_212005681_000002_12828601    87 stars filter C [742123.6s - 742303.6s] expo=180s elev=54.5deg humid= 68% sunelev=-25.8deg (moon at  62.0deg phase=0.56 elev= +0.0 )
AL_20110820_212316155_000002_12828601    84 stars filter C [742314.1s - 742494.1s] expo=180s elev=54.7deg humid= 69% sunelev=-26.1deg (moon at  62.0deg phase=0.56 elev= +1.0 )
AL_20110820_212626920_000002_12828601    66 stars filter R [742504.8s - 742684.8s] expo=180s elev=55.0deg humid= 69% sunelev=-26.5deg (moon at  62.0deg phase=0.56 elev= +1.0 )
AL_20110820_212937421_000002_12828601    80 stars filter C [742695.3s - 742875.3s] expo=180s elev=55.2deg humid= 70% sunelev=-26.8deg (moon at  62.0deg phase=0.56 elev= +2.0 )
AL_20110820_213247701_000002_12828601    70 stars filter C [742885.6s - 743065.6s] expo=180s elev=55.4deg humid= 71% sunelev=-27.1deg (moon at  62.0deg phase=0.56 elev= +2.0 )
AL_20110820_213558209_000002_12828601    51 stars filter R [743076.1s - 743256.1s] expo=180s elev=55.7deg humid= 71% sunelev=-27.5deg (moon at  62.0deg phase=0.56 elev= +3.0 )
AL_20110820_214008115_000002_12828701    63 stars filter C [743326.0s - 743506.0s] expo=180s elev=56.0deg humid= 71% sunelev=-27.9deg (moon at  62.0deg phase=0.56 elev= +4.0 )
AL_20110820_214318400_000002_12828701    58 stars filter C [743516.3s - 743696.3s] expo=180s elev=56.2deg humid= 71% sunelev=-28.2deg (moon at  62.0deg phase=0.56 elev= +4.0 )
AL_20110820_214629120_000002_12828701    48 stars filter R [743707.0s - 743887.0s] expo=180s elev=56.5deg humid= 72% sunelev=-28.5deg (moon at  62.0deg phase=0.56 elev= +5.0 )
AL_20110820_214939620_000002_12828701    58 stars filter C [743897.5s - 744077.5s] expo=180s elev=56.7deg humid= 75% sunelev=-28.8deg (moon at  62.0deg phase=0.56 elev= +5.0 )
AL_20110820_215249884_000002_12828701    54 stars filter C [744087.8s - 744267.8s] expo=180s elev=56.9deg humid= 74% sunelev=-29.1deg (moon at  62.0deg phase=0.56 elev= +6.0 )
AL_20110820_215600640_000002_12828701    39 stars filter R [744278.5s - 744458.5s] expo=180s elev=57.1deg humid= 74% sunelev=-29.3deg (moon at  62.0deg phase=0.56 elev= +6.0 )
AL_20110820_220009359_000002_12828801    49 stars filter C [744527.3s - 744707.3s] expo=180s elev=57.4deg humid= 74% sunelev=-29.7deg (moon at  62.0deg phase=0.56 elev= +7.0 )
AL_20110820_220319170_000002_12828801    49 stars filter C [744717.1s - 744897.1s] expo=180s elev=57.6deg humid= 74% sunelev=-29.9deg (moon at  62.0deg phase=0.56 elev= +7.0 )
AL_20110820_220629686_000002_12828801    39 stars filter R [744907.6s - 745087.6s] expo=180s elev=57.9deg humid= 73% sunelev=-30.2deg (moon at  62.0deg phase=0.56 elev= +8.0 )
AL_20110820_220940234_000002_12828801    51 stars filter C [745098.1s - 745278.1s] expo=180s elev=58.1deg humid= 72% sunelev=-30.4deg (moon at  62.0deg phase=0.56 elev= +8.0 )
AL_20110820_221250734_000002_12828801    51 stars filter C [745288.6s - 745468.6s] expo=180s elev=58.3deg humid= 70% sunelev=-30.7deg (moon at  62.0deg phase=0.56 elev= +9.0 )
AL_20110820_221601466_000002_12828801    38 stars filter R [745479.3s - 745659.3s] expo=180s elev=58.5deg humid= 69% sunelev=-30.9deg (moon at  62.0deg phase=0.56 elev=+10.0 )
AL_20110820_222011575_000002_12828901    39 stars filter C [745729.4s - 745909.4s] expo=180s elev=58.8deg humid= 68% sunelev=-31.2deg (moon at  62.0deg phase=0.56 elev=+10.0 )
AL_20110820_222322550_000002_12828901    45 stars filter C [745920.4s - 746100.4s] expo=180s elev=59.0deg humid= 67% sunelev=-31.4deg (moon at  62.0deg phase=0.56 elev=+11.0 )
AL_20110820_222632816_000002_12828901    36 stars filter R [746110.7s - 746290.7s] expo=180s elev=59.2deg humid= 66% sunelev=-31.6deg (moon at  62.0deg phase=0.56 elev=+11.0 )
AL_20110820_222943332_000002_12828901    43 stars filter C [746301.2s - 746481.2s] expo=180s elev=59.4deg humid= 66% sunelev=-31.8deg (moon at  62.0deg phase=0.56 elev=+12.0 )
AL_20110820_223254049_000002_12828901    43 stars filter C [746491.9s - 746671.9s] expo=180s elev=59.5deg humid= 67% sunelev=-32.0deg (moon at  62.0deg phase=0.56 elev=+12.0 )
AL_20110820_223604588_000002_12828901    33 stars filter R [746682.5s - 746862.5s] expo=180s elev=59.7deg humid= 67% sunelev=-32.2deg (moon at  62.0deg phase=0.56 elev=+13.0 )
AL_20110820_224013775_000002_12829001    41 stars filter C [746931.7s - 747111.7s] expo=180s elev=60.0deg humid= 68% sunelev=-32.4deg (moon at  62.0deg phase=0.56 elev=+14.0 )
AL_20110820_224324515_000002_12829001    42 stars filter C [747122.4s - 747302.4s] expo=180s elev=60.2deg humid= 70% sunelev=-32.6deg (moon at  62.0deg phase=0.56 elev=+14.0 )
AL_20110820_224635015_000002_12829001    34 stars filter R [747312.9s - 747492.9s] expo=180s elev=60.3deg humid= 69% sunelev=-32.7deg (moon at  62.0deg phase=0.56 elev=+15.0 )
AL_20110820_224945498_000002_12829001    40 stars filter C [747503.4s - 747683.4s] expo=180s elev=60.5deg humid= 68% sunelev=-32.9deg (moon at  62.0deg phase=0.56 elev=+15.0 )
AL_20110820_225256280_000002_12829001    40 stars filter C [747694.2s - 747874.2s] expo=180s elev=60.7deg humid= 68% sunelev=-33.0deg (moon at  62.0deg phase=0.56 elev=+16.0 )
AL_20110820_225606533_000002_12829001    34 stars filter R [747884.4s - 748064.4s] expo=180s elev=60.8deg humid= 67% sunelev=-33.1deg (moon at  62.0deg phase=0.56 elev=+16.0 )
AL_20110820_230014595_000002_12829101    39 stars filter C [748132.5s - 748312.5s] expo=180s elev=61.0deg humid= 67% sunelev=-33.3deg (moon at  62.0deg phase=0.56 elev=+17.0 )
AL_20110820_230325551_000002_12829101    38 stars filter C [748323.4s - 748503.4s] expo=180s elev=61.2deg humid= 67% sunelev=-33.4deg (moon at  62.0deg phase=0.56 elev=+18.0 )
AL_20110820_230635849_000002_12829101    33 stars filter R [748513.7s - 748693.7s] expo=180s elev=61.3deg humid= 68% sunelev=-33.5deg (moon at  62.0deg phase=0.56 elev=+18.0 )
AL_20110820_230946552_000002_12829101    42 stars filter C [748704.5s - 748884.5s] expo=180s elev=61.5deg humid= 68% sunelev=-33.5deg (moon at  62.0deg phase=0.56 elev=+19.0 )
AL_20110820_231257052_000002_12829101    40 stars filter C [748895.0s - 749075.0s] expo=180s elev=61.6deg humid= 68% sunelev=-33.6deg (moon at  62.0deg phase=0.56 elev=+19.0 )
AL_20110820_231607576_000002_12829101    34 stars filter R [749085.5s - 749265.5s] expo=180s elev=61.8deg humid= 68% sunelev=-33.7deg (moon at  62.0deg phase=0.56 elev=+20.0 )
AL_20110820_232017701_000002_12829201    39 stars filter C [749335.6s - 749515.6s] expo=180s elev=61.9deg humid= 69% sunelev=-33.8deg (moon at  62.0deg phase=0.56 elev=+21.0 )
AL_20110820_232328676_000002_12829201    40 stars filter C [749526.6s - 749706.6s] expo=180s elev=62.0deg humid= 69% sunelev=-33.8deg (moon at  62.0deg phase=0.56 elev=+21.0 )
AL_20110820_232638942_000002_12829201    35 stars filter R [749716.8s - 749896.8s] expo=180s elev=62.2deg humid= 70% sunelev=-33.8deg (moon at  62.0deg phase=0.55 elev=+22.0 )
AL_20110820_232949505_000002_12829201    38 stars filter C [749907.3s - 750087.3s] expo=180s elev=62.3deg humid= 70% sunelev=-33.9deg (moon at  62.0deg phase=0.55 elev=+22.0 )
AL_20110820_233300213_000002_12829201    41 stars filter C [750098.1s - 750278.1s] expo=180s elev=62.4deg humid= 71% sunelev=-33.9deg (moon at  62.0deg phase=0.55 elev=+23.0 )
AL_20110820_233610728_000002_12829201    31 stars filter R [750288.6s - 750468.6s] expo=180s elev=62.5deg humid= 71% sunelev=-33.9deg (moon at  62.0deg phase=0.55 elev=+23.0 )
AL_20110820_234019416_000002_12829301    34 stars filter C [750537.3s - 750717.3s] expo=180s elev=62.6deg humid= 71% sunelev=-33.9deg (moon at  62.0deg phase=0.55 elev=+24.0 )
AL_20110820_234329249_000002_12829301    36 stars filter C [750727.1s - 750907.1s] expo=180s elev=62.7deg humid= 72% sunelev=-33.9deg (moon at  62.0deg phase=0.55 elev=+25.0 )
AL_20110820_234639781_000002_12829301    33 stars filter R [750917.6s - 751097.6s] expo=180s elev=62.8deg humid= 73% sunelev=-33.8deg (moon at  62.0deg phase=0.55 elev=+25.0 )
AL_20110820_234950514_000002_12829301    38 stars filter C [751108.4s - 751288.4s] expo=180s elev=62.9deg humid= 73% sunelev=-33.8deg (moon at  62.0deg phase=0.55 elev=+26.0 )
AL_20110820_235301020_000002_12829301    35 stars filter C [751298.9s - 751478.9s] expo=180s elev=63.0deg humid= 73% sunelev=-33.8deg (moon at  62.0deg phase=0.55 elev=+26.0 )
AL_20110820_235611253_000002_12829301    30 stars filter R [751489.2s - 751669.2s] expo=180s elev=63.0deg humid= 72% sunelev=-33.7deg (moon at  62.0deg phase=0.55 elev=+27.0 )
AL_20110821_000626355_000002_12829401    34 stars filter C [752104.2s - 752284.2s] expo=180s elev=63.2deg humid= 72% sunelev=-33.5deg (moon at  62.0deg phase=0.55 elev=+29.0 )
AL_20110821_000936855_000002_12829401    30 stars filter R [752294.7s - 752474.7s] expo=180s elev=63.2deg humid= 71% sunelev=-33.4deg (moon at  62.0deg phase=0.55 elev=+29.0 )
AL_20110821_001247119_000002_12829401    25 stars filter V [752485.0s - 752665.0s] expo=180s elev=63.3deg humid= 72% sunelev=-33.3deg (moon at  62.0deg phase=0.55 elev=+30.0 )
AL_20110821_003124585_000002_12829501    36 stars filter C [753602.4s - 753782.4s] expo=180s elev=63.4deg humid= 73% sunelev=-32.5deg (moon at  62.0deg phase=0.55 elev=+33.0 )
AL_20110821_003435277_000002_12829501    34 stars filter R [753793.2s - 753973.2s] expo=180s elev=63.4deg humid= 73% sunelev=-32.4deg (moon at  62.0deg phase=0.55 elev=+34.0 )
AL_20110821_003745528_000002_12829501    25 stars filter V [753983.4s - 754163.4s] expo=180s elev=63.4deg humid= 74% sunelev=-32.2deg (moon at  62.0deg phase=0.55 elev=+34.0 )
AL_20110821_005610446_000002_12829601    36 stars filter C [755088.3s - 755268.3s] expo=180s elev=63.2deg humid= 75% sunelev=-31.1deg (moon at  62.0deg phase=0.55 elev=+38.0 )
AL_20110821_005920929_000002_12829601    31 stars filter R [755278.8s - 755458.8s] expo=180s elev=63.2deg humid= 76% sunelev=-30.8deg (moon at  62.0deg phase=0.55 elev=+38.0 )
AL_20110821_010231429_000002_12829601    23 stars filter V [755469.3s - 755649.3s] expo=180s elev=63.1deg humid= 76% sunelev=-30.6deg (moon at  62.0deg phase=0.55 elev=+39.0 )
AL_20110821_012102379_000002_12829701    35 stars filter C [756580.3s - 756760.3s] expo=180s elev=62.7deg humid= 76% sunelev=-29.1deg (moon at  62.0deg phase=0.55 elev=+42.0 )
AL_20110821_012412916_000002_12829701    30 stars filter R [756770.8s - 756950.8s] expo=180s elev=62.6deg humid= 76% sunelev=-28.8deg (moon at  62.0deg phase=0.55 elev=+42.0 )
AL_20110821_012723666_000002_12829701    25 stars filter V [756961.5s - 757141.5s] expo=180s elev=62.5deg humid= 76% sunelev=-28.5deg (moon at  62.0deg phase=0.55 elev=+43.0 )
AL_20110821_014551646_000002_12829801    31 stars filter C [758069.5s - 758249.5s] expo=180s elev=61.8deg humid= 76% sunelev=-26.7deg (moon at  62.0deg phase=0.55 elev=+46.0 )
AL_20110821_014902129_000002_12829801    29 stars filter R [758260.0s - 758440.0s] expo=180s elev=61.7deg humid= 76% sunelev=-26.4deg (moon at  62.0deg phase=0.55 elev=+47.0 )
AL_20110821_015212412_000002_12829801    19 stars filter V [758450.3s - 758630.3s] expo=180s elev=61.5deg humid= 77% sunelev=-26.0deg (moon at  62.0deg phase=0.55 elev=+47.0 )
AL_20110821_021049282_000002_12829901    36 stars filter C [759567.1s - 759747.1s] expo=180s elev=60.6deg humid= 76% sunelev=-23.9deg (moon at  62.0deg phase=0.55 elev=+50.0 )
AL_20110821_021359756_000002_12829901    26 stars filter R [759757.6s - 759937.6s] expo=180s elev=60.5deg humid= 76% sunelev=-23.5deg (moon at  62.0deg phase=0.55 elev=+51.0 )
AL_20110821_021710256_000002_12829901    21 stars filter V [759948.1s - 760128.1s] expo=180s elev=60.3deg humid= 76% sunelev=-23.1deg (moon at  62.0deg phase=0.55 elev=+51.0 )
AL_20110821_023531315_000002_12830001    36 stars filter C [761049.2s - 761229.2s] expo=180s elev=59.2deg humid= 74% sunelev=-20.8deg (moon at  62.0deg phase=0.55 elev=+54.0 )
AL_20110821_023842065_000002_12830001    25 stars filter R [761240.0s - 761420.0s] expo=180s elev=59.0deg humid= 74% sunelev=-20.3deg (moon at  62.0deg phase=0.55 elev=+55.0 )
AL_20110821_024152613_000002_12830001    17 stars filter V [761430.5s - 761610.5s] expo=180s elev=58.8deg humid= 73% sunelev=-19.9deg (moon at  62.0deg phase=0.55 elev=+55.0 )
AL_20110821_030025405_000002_12830101    34 stars filter C [762543.3s - 762723.3s] expo=180s elev=57.6deg humid= 77% sunelev=-17.3deg (moon at  62.0deg phase=0.55 elev=+58.0 )
AL_20110821_030335707_000002_12830101    26 stars filter R [762733.6s - 762913.6s] expo=180s elev=57.4deg humid= 78% sunelev=-16.9deg (moon at  62.0deg phase=0.55 elev=+58.0 )
AL_20110821_030646192_000002_12830101    23 stars filter V [762924.1s - 763104.1s] expo=180s elev=57.2deg humid= 77% sunelev=-16.4deg (moon at  62.0deg phase=0.55 elev=+58.0 )
Informations from GCN notice:
This is not a GRB (a retractation has been edited)
Date of GRB : 2455785.7974159722 2011-08-12T07:08:16.739
Date of notice : 2455785.8014236111 2011-08-12T07:14:03.000
Refined position : no
RA(J2000.0) : 277.363000 18h29m27s1
DEC(J2000.0) : -23.790000 -23d47m24s00
Error box : x=-203050:-202941 y=120528:120637 (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=113.232556 lat=9.690567
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.523
Assuming Rv=3.1: Av=1.733 Ar=1.398 Ai=1.014
extmap.fit: Extinction map E(B-V) from Schlegel:

Field of View is about 60 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 110820: 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 110820 detected by SWIFT
(trigger 500108) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 735297.1s after the GRB trigger
(734951.2s after the notice). The elevation of the field increased from
44 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2011-08-12T07:08:17.088

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+735297.1s to t0+735357.1s : R > 15.1

The second image is 30.0s exposure in tracking mode:
t0+735366.9s to t0+735396.9s : R > 16.2

We co-added a series of exposures:
t0+735366.9s to t0+735853.9s : 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 735297.1s 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=113.2326 lat= +9.6906
and the galactic extinction in R band is 1.4 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.
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