GRB110623_144156_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20110623_202210847_000002_00738501    43 stars filter C [20362.5s - 20422.5s] expo= 60s elev=19.8deg humid= 74% sunelev=-9.8deg (moon at  83.0deg phase=0.48 elev=-27.0 )
AL_20110623_202250668_000002_00738501    36 stars filter C [20432.4s - 20462.4s] expo= 30s elev=19.9deg humid= 74% sunelev=-9.9deg (moon at  83.0deg phase=0.48 elev=-27.0 )
AL_20110623_202330496_000002_00738501    38 stars filter C [20472.2s - 20502.2s] expo= 30s elev=20.0deg humid= 74% sunelev=-10.0deg (moon at  83.0deg phase=0.48 elev=-27.0 )
AL_20110623_202410512_000002_00738501    42 stars filter C [20512.1s - 20542.1s] expo= 30s elev=20.1deg humid= 74% sunelev=-10.1deg (moon at  83.0deg phase=0.48 elev=-27.0 )
AL_20110623_202450324_000002_00738501    41 stars filter C [20552.0s - 20582.0s] expo= 30s elev=20.3deg humid= 74% sunelev=-10.1deg (moon at  83.0deg phase=0.48 elev=-27.0 )
AL_20110623_202530136_000002_00738501    42 stars filter C [20591.9s - 20621.9s] expo= 30s elev=20.4deg humid= 74% sunelev=-10.2deg (moon at  83.0deg phase=0.48 elev=-27.0 )
AL_20110623_202932527_000002_00738601    66 stars filter C [20774.3s - 20864.3s] expo= 90s elev=20.9deg humid= 74% sunelev=-10.6deg (moon at  84.0deg phase=0.48 elev=-27.0 )
AL_20110623_203112340_000002_00738601    68 stars filter C [20874.1s - 20964.1s] expo= 90s elev=21.2deg humid= 74% sunelev=-10.8deg (moon at  84.0deg phase=0.48 elev=-26.0 )
AL_20110623_203253316_000002_00738601    63 stars filter R [20974.9s - 21064.9s] expo= 90s elev=21.4deg humid= 74% sunelev=-11.0deg (moon at  84.0deg phase=0.48 elev=-26.0 )
AL_20110623_203433128_000002_00738601    69 stars filter C [21074.7s - 21164.7s] expo= 90s elev=21.7deg humid= 73% sunelev=-11.2deg (moon at  84.0deg phase=0.48 elev=-26.0 )
AL_20110623_203612940_000002_00738601    71 stars filter C [21174.6s - 21264.6s] expo= 90s elev=22.0deg humid= 73% sunelev=-11.4deg (moon at  84.0deg phase=0.48 elev=-26.0 )
AL_20110623_203752754_000002_00738601    63 stars filter R [21274.4s - 21364.4s] expo= 90s elev=22.2deg humid= 73% sunelev=-11.6deg (moon at  84.0deg phase=0.48 elev=-25.0 )
AL_20110623_204037285_000002_00738701    79 stars filter C [21439.0s - 21529.0s] expo= 90s elev=22.6deg humid= 73% sunelev=-11.9deg (moon at  84.0deg phase=0.48 elev=-25.0 )
AL_20110623_204217097_000002_00738701    82 stars filter C [21538.9s - 21628.9s] expo= 90s elev=22.9deg humid= 73% sunelev=-12.1deg (moon at  84.0deg phase=0.48 elev=-25.0 )
AL_20110623_204356916_000002_00738701    76 stars filter R [21638.7s - 21728.7s] expo= 90s elev=23.1deg humid= 73% sunelev=-12.3deg (moon at  84.0deg phase=0.48 elev=-25.0 )
AL_20110623_204536745_000002_00738701    82 stars filter C [21738.5s - 21828.5s] expo= 90s elev=23.4deg humid= 73% sunelev=-12.5deg (moon at  84.0deg phase=0.48 elev=-24.0 )
AL_20110623_204716761_000002_00738701    90 stars filter C [21838.4s - 21928.4s] expo= 90s elev=23.7deg humid= 73% sunelev=-12.7deg (moon at  84.0deg phase=0.48 elev=-24.0 )
AL_20110623_204857511_000002_00738701    78 stars filter R [21939.2s - 22029.2s] expo= 90s elev=23.9deg humid= 72% sunelev=-12.9deg (moon at  84.0deg phase=0.48 elev=-24.0 )
AL_20110623_205654956_000002_00738801    90 stars filter C [22326.6s - 22506.6s] expo=180s elev=25.0deg humid= 72% sunelev=-13.6deg (moon at  84.0deg phase=0.48 elev=-23.0 )
AL_20110623_210005456_000002_00738801    92 stars filter C [22517.2s - 22697.2s] expo=180s elev=25.4deg humid= 72% sunelev=-13.9deg (moon at  84.0deg phase=0.48 elev=-22.0 )
AL_20110623_210315977_000002_00738801    96 stars filter R [22707.7s - 22887.7s] expo=180s elev=25.9deg humid= 72% sunelev=-14.3deg (moon at  84.0deg phase=0.48 elev=-22.0 )
AL_20110623_210626727_000002_00738801    89 stars filter C [22898.4s - 23078.4s] expo=180s elev=26.4deg humid= 72% sunelev=-14.6deg (moon at  84.0deg phase=0.48 elev=-21.0 )
AL_20110623_210936976_000002_00738801   101 stars filter C [23088.6s - 23268.6s] expo=180s elev=26.8deg humid= 72% sunelev=-14.9deg (moon at  84.0deg phase=0.48 elev=-21.0 )
AL_20110623_211247487_000002_00738801    98 stars filter R [23279.2s - 23459.2s] expo=180s elev=27.3deg humid= 72% sunelev=-15.2deg (moon at  84.0deg phase=0.48 elev=-20.0 )
AL_20110623_211700628_000002_00738901   108 stars filter C [23532.3s - 23712.3s] expo=180s elev=27.9deg humid= 70% sunelev=-15.7deg (moon at  84.0deg phase=0.47 elev=-20.0 )
AL_20110623_212011158_000002_00738901   104 stars filter C [23722.9s - 23902.9s] expo=180s elev=28.3deg humid= 69% sunelev=-16.0deg (moon at  84.0deg phase=0.47 elev=-19.0 )
AL_20110623_212321898_000002_00738901    87 stars filter R [23913.6s - 24093.6s] expo=180s elev=28.7deg humid= 69% sunelev=-16.3deg (moon at  84.0deg phase=0.47 elev=-19.0 )
AL_20110623_212632381_000002_00738901   101 stars filter C [24104.0s - 24284.0s] expo=180s elev=29.2deg humid= 69% sunelev=-16.6deg (moon at  84.0deg phase=0.47 elev=-18.0 )
AL_20110623_212942897_000002_00738901    81 stars filter C [24294.5s - 24474.5s] expo=180s elev=29.6deg humid= 70% sunelev=-16.9deg (moon at  84.0deg phase=0.47 elev=-18.0 )
AL_20110623_213253404_000002_00738901   104 stars filter R [24485.1s - 24665.1s] expo=180s elev=30.0deg humid= 69% sunelev=-17.1deg (moon at  84.0deg phase=0.47 elev=-17.0 )
AL_20110623_213712576_000002_00739001    81 stars filter C [24744.3s - 24924.3s] expo=180s elev=30.6deg humid= 69% sunelev=-17.5deg (moon at  84.0deg phase=0.47 elev=-17.0 )
AL_20110623_214023077_000002_00739001    96 stars filter C [24934.7s - 25114.7s] expo=180s elev=31.0deg humid= 69% sunelev=-17.8deg (moon at  84.0deg phase=0.47 elev=-16.0 )
AL_20110623_214333583_000002_00739001   106 stars filter R [25125.3s - 25305.3s] expo=180s elev=31.4deg humid= 69% sunelev=-18.1deg (moon at  84.0deg phase=0.47 elev=-16.0 )
AL_20110623_214644333_000002_00739001    88 stars filter C [25316.0s - 25496.0s] expo=180s elev=31.8deg humid= 68% sunelev=-18.3deg (moon at  84.0deg phase=0.47 elev=-15.0 )
AL_20110623_214954849_000002_00739001   112 stars filter C [25506.4s - 25686.4s] expo=180s elev=32.2deg humid= 69% sunelev=-18.6deg (moon at  84.0deg phase=0.47 elev=-15.0 )
AL_20110623_215305357_000002_00739001   101 stars filter R [25697.0s - 25877.0s] expo=180s elev=32.5deg humid= 69% sunelev=-18.8deg (moon at  84.0deg phase=0.47 elev=-14.0 )
AL_20110623_215705263_000002_00739101   109 stars filter C [25936.9s - 26116.9s] expo=180s elev=33.0deg humid= 69% sunelev=-19.1deg (moon at  84.0deg phase=0.47 elev=-14.0 )
AL_20110623_220015998_000002_00739101   106 stars filter C [26127.8s - 26307.8s] expo=180s elev=33.4deg humid= 69% sunelev=-19.3deg (moon at  84.0deg phase=0.47 elev=-13.0 )
AL_20110623_220326737_000002_00739101    87 stars filter R [26318.5s - 26498.5s] expo=180s elev=33.7deg humid= 70% sunelev=-19.6deg (moon at  84.0deg phase=0.47 elev=-13.0 )
AL_20110623_220637269_000002_00739101   119 stars filter C [26508.9s - 26688.9s] expo=180s elev=34.1deg humid= 69% sunelev=-19.8deg (moon at  84.0deg phase=0.47 elev=-12.0 )
AL_20110623_220947752_000002_00739101    95 stars filter C [26699.5s - 26879.5s] expo=180s elev=34.4deg humid= 69% sunelev=-20.0deg (moon at  84.0deg phase=0.47 elev=-11.0 )
AL_20110623_221258495_000002_00739101   113 stars filter R [26890.2s - 27070.2s] expo=180s elev=34.8deg humid= 68% sunelev=-20.2deg (moon at  85.0deg phase=0.47 elev=-11.0 )
AL_20110623_221707229_000002_00739201    99 stars filter C [27139.0s - 27319.0s] expo=180s elev=35.2deg humid= 68% sunelev=-20.4deg (moon at  85.0deg phase=0.47 elev=-10.0 )
AL_20110623_222018199_000002_00739201   108 stars filter C [27329.8s - 27509.8s] expo=180s elev=35.5deg humid= 68% sunelev=-20.6deg (moon at  85.0deg phase=0.47 elev=-10.0 )
AL_20110623_222328471_000002_00739201   107 stars filter R [27520.1s - 27700.1s] expo=180s elev=35.9deg humid= 68% sunelev=-20.8deg (moon at  85.0deg phase=0.47 elev= -9.0 )
AL_20110623_222638986_000002_00739201    92 stars filter C [27710.6s - 27890.6s] expo=180s elev=36.2deg humid= 68% sunelev=-21.0deg (moon at  85.0deg phase=0.47 elev= -9.0 )
AL_20110623_222949485_000002_00739201   114 stars filter C [27901.2s - 28081.2s] expo=180s elev=36.5deg humid= 69% sunelev=-21.1deg (moon at  85.0deg phase=0.47 elev= -8.0 )
AL_20110623_223259991_000002_00739201   100 stars filter R [28091.7s - 28271.7s] expo=180s elev=36.8deg humid= 70% sunelev=-21.3deg (moon at  85.0deg phase=0.47 elev= -8.0 )
AL_20110623_223709195_000002_00739301   115 stars filter C [28340.9s - 28520.9s] expo=180s elev=37.1deg humid= 70% sunelev=-21.5deg (moon at  85.0deg phase=0.47 elev= -7.0 )
AL_20110623_224019930_000002_00739301   100 stars filter C [28531.7s - 28711.7s] expo=180s elev=37.4deg humid= 68% sunelev=-21.6deg (moon at  85.0deg phase=0.47 elev= -6.0 )
AL_20110623_224330435_000002_00739301    48 stars filter R [28722.2s - 28902.2s] expo=180s elev=37.7deg humid= 66% sunelev=-21.8deg (moon at  85.0deg phase=0.47 elev= -6.0 )
AL_20110623_224640952_000002_00739301    72 stars filter C [28912.5s - 29092.5s] expo=180s elev=37.9deg humid= 67% sunelev=-21.9deg (moon at  85.0deg phase=0.47 elev= -5.0 )
AL_20110623_224951467_000002_00739301    76 stars filter C [29103.1s - 29283.1s] expo=180s elev=38.2deg humid= 67% sunelev=-22.0deg (moon at  85.0deg phase=0.47 elev= -5.0 )
AL_20110623_225301958_000002_00739301    20 stars filter R [29293.7s - 29473.7s] expo=180s elev=38.4deg humid= 68% sunelev=-22.1deg (moon at  85.0deg phase=0.47 elev= -4.0 )
AL_20110623_225711162_000002_00739401    53 stars filter C [29542.7s - 29722.7s] expo=180s elev=38.7deg humid= 66% sunelev=-22.2deg (moon at  85.0deg phase=0.47 elev= -3.0 )
AL_20110623_230021927_000002_00739401    76 stars filter C [29733.6s - 29913.6s] expo=180s elev=39.0deg humid= 66% sunelev=-22.3deg (moon at  85.0deg phase=0.47 elev= -3.0 )
AL_20110623_230332168_000002_00739401     6 stars filter R [29923.9s - 30103.9s] expo=180s elev=39.2deg humid= 65% sunelev=-22.4deg (moon at  85.0deg phase=0.47 elev= -2.0 )
AL_20110623_230641995_000002_00739401    10 stars filter C [30113.6s - 30293.6s] expo=180s elev=39.4deg humid= 64% sunelev=-22.5deg (moon at  85.0deg phase=0.47 elev= -2.0 )
AL_20110623_230952731_000002_00739401    44 stars filter C [30304.3s - 30484.3s] expo=180s elev=39.6deg humid= 61% sunelev=-22.6deg (moon at  85.0deg phase=0.47 elev= -1.0 )
AL_20110623_231303003_000002_00739401    34 stars filter R [30494.6s - 30674.6s] expo=180s elev=39.7deg humid= 60% sunelev=-22.6deg (moon at  85.0deg phase=0.47 elev= -1.0 )
AL_20110623_231713361_000002_00739501    45 stars filter C [30745.0s - 30925.0s] expo=180s elev=40.0deg humid= 57% sunelev=-22.7deg (moon at  85.0deg phase=0.47 elev= +0.0 )
AL_20110623_232023862_000002_00739501    58 stars filter C [30935.5s - 31115.5s] expo=180s elev=40.1deg humid= 56% sunelev=-22.7deg (moon at  85.0deg phase=0.47 elev= +0.0 )
AL_20110623_232334604_000002_00739501     8 stars filter R [31126.2s - 31306.2s] expo=180s elev=40.3deg humid= 56% sunelev=-22.8deg (moon at  85.0deg phase=0.47 elev= +0.0 )
AL_20110623_232645104_000002_00739501     2 stars filter C [31316.7s - 31496.7s] expo=180s elev=40.4deg humid= 57% sunelev=-22.8deg (moon at  85.0deg phase=0.47 elev= +1.0 )
AL_20110623_233305891_000002_00739501     0 star  filter R [31697.6s - 31877.6s] expo=180s elev=40.7deg humid= 58% sunelev=-22.8deg (moon at  85.0deg phase=0.47 elev= +2.0 )
AL_20110623_233715094_000002_00739601    12 stars filter C [31946.7s - 32126.7s] expo=180s elev=40.8deg humid= 59% sunelev=-22.8deg (moon at  85.0deg phase=0.47 elev= +3.0 )
AL_20110623_234025594_000002_00739601    19 stars filter C [32137.3s - 32317.3s] expo=180s elev=40.9deg humid= 60% sunelev=-22.8deg (moon at  85.0deg phase=0.47 elev= +3.0 )
AL_20110623_234335881_000002_00739601    15 stars filter R [32327.7s - 32507.7s] expo=180s elev=41.0deg humid= 60% sunelev=-22.8deg (moon at  85.0deg phase=0.47 elev= +4.0 )
AL_20110623_234645678_000002_00739601    15 stars filter C [32517.4s - 32697.4s] expo=180s elev=41.1deg humid= 60% sunelev=-22.8deg (moon at  85.0deg phase=0.47 elev= +4.0 )
AL_20110623_234956194_000002_00739601     1 star  filter C [32707.8s - 32887.8s] expo=180s elev=41.2deg humid= 60% sunelev=-22.7deg (moon at  85.0deg phase=0.47 elev= +5.0 )
AL_20110623_235306716_000002_00739601     3 stars filter R [32898.4s - 33078.4s] expo=180s elev=41.2deg humid= 60% sunelev=-22.7deg (moon at  85.0deg phase=0.47 elev= +5.0 )
AL_20110623_235717983_000002_00739701     6 stars filter C [33149.6s - 33329.6s] expo=180s elev=41.3deg humid= 60% sunelev=-22.6deg (moon at  85.0deg phase=0.47 elev= +6.0 )
AL_20110624_000028498_000002_00739701     5 stars filter C [33340.2s - 33520.2s] expo=180s elev=41.3deg humid= 60% sunelev=-22.6deg (moon at  85.0deg phase=0.47 elev= +7.0 )
AL_20110624_000339240_000002_00739701     5 stars filter R [33530.9s - 33710.9s] expo=180s elev=41.3deg humid= 61% sunelev=-22.5deg (moon at  85.0deg phase=0.47 elev= +7.0 )
AL_20110624_000649506_000002_00739701     3 stars filter C [33721.3s - 33901.3s] expo=180s elev=41.3deg humid= 61% sunelev=-22.5deg (moon at  85.0deg phase=0.47 elev= +8.0 )
AL_20110624_000959333_000002_00739701     0 star  filter C [33911.1s - 34091.1s] expo=180s elev=41.3deg humid= 60% sunelev=-22.4deg (moon at  85.0deg phase=0.47 elev= +8.0 )
AL_20110624_001309824_000002_00739701     0 star  filter R [34101.4s - 34281.4s] expo=180s elev=41.3deg humid= 60% sunelev=-22.3deg (moon at  86.0deg phase=0.47 elev= +9.0 )
AL_20110624_002340268_000002_00739801     0 star  filter R [34731.9s - 34911.9s] expo=180s elev=41.2deg humid= 50% sunelev=-21.9deg (moon at  86.0deg phase=0.47 elev=+11.0 )
AL_20110624_002650783_000002_00739801     0 star  filter C [34922.5s - 35102.5s] expo=180s elev=41.2deg humid= 54% sunelev=-21.8deg (moon at  86.0deg phase=0.47 elev=+11.0 )
AL_20110624_003001284_000002_00739801     0 star  filter C [35113.0s - 35293.0s] expo=180s elev=41.1deg humid= 54% sunelev=-21.7deg (moon at  86.0deg phase=0.47 elev=+12.0 )
AL_20110624_003312023_000002_00739801     0 star  filter R [35303.7s - 35483.7s] expo=180s elev=41.0deg humid= 52% sunelev=-21.5deg (moon at  86.0deg phase=0.47 elev=+12.0 )
AL_20110624_004031507_000002_00739901     0 star  filter C [35743.2s - 35923.2s] expo=180s elev=40.8deg humid= 51% sunelev=-21.2deg (moon at  86.0deg phase=0.47 elev=+14.0 )
AL_20110624_004341999_000002_00739901     0 star  filter R [35933.6s - 36113.6s] expo=180s elev=40.7deg humid= 47% sunelev=-21.0deg (moon at  86.0deg phase=0.47 elev=+14.0 )
AL_20110624_004652514_000002_00739901     0 star  filter C [36124.2s - 36304.2s] expo=180s elev=40.6deg humid= 48% sunelev=-20.9deg (moon at  86.0deg phase=0.47 elev=+15.0 )
AL_20110624_005002780_000002_00739901     0 star  filter C [36314.6s - 36494.6s] expo=180s elev=40.4deg humid= 52% sunelev=-20.7deg (moon at  86.0deg phase=0.47 elev=+15.0 )
AL_20110624_005313318_000002_00739901     0 star  filter R [36505.0s - 36685.0s] expo=180s elev=40.3deg humid= 55% sunelev=-20.5deg (moon at  86.0deg phase=0.47 elev=+16.0 )
AL_20110624_010647451_000002_00740001     0 star  filter R [37319.1s - 37499.1s] expo=180s elev=39.6deg humid= 59% sunelev=-19.7deg (moon at  86.0deg phase=0.46 elev=+18.0 )
AL_20110624_010958201_000002_00740001     0 star  filter V [37509.8s - 37689.8s] expo=180s elev=39.4deg humid= 58% sunelev=-19.4deg (moon at  86.0deg phase=0.46 elev=+19.0 )
AL_20110624_012818213_000002_00740101    30 stars filter C [38609.9s - 38789.9s] expo=180s elev=38.1deg humid= 49% sunelev=-18.0deg (moon at  86.0deg phase=0.46 elev=+22.0 )
AL_20110624_013129182_000002_00740101    69 stars filter R [38800.8s - 38980.8s] expo=180s elev=37.9deg humid= 49% sunelev=-17.8deg (moon at  86.0deg phase=0.46 elev=+23.0 )
AL_20110624_013439453_000002_00740101    73 stars filter V [38991.1s - 39171.1s] expo=180s elev=37.6deg humid= 49% sunelev=-17.5deg (moon at  86.0deg phase=0.46 elev=+23.0 )
AL_20110624_015316404_000002_00740201    89 stars filter C [40108.1s - 40288.1s] expo=180s elev=35.9deg humid= 52% sunelev=-15.8deg (moon at  86.0deg phase=0.46 elev=+27.0 )
AL_20110624_015626669_000002_00740201   110 stars filter R [40298.3s - 40478.3s] expo=180s elev=35.6deg humid= 51% sunelev=-15.5deg (moon at  86.0deg phase=0.46 elev=+27.0 )
AL_20110624_015937403_000002_00740201    95 stars filter V [40489.1s - 40669.1s] expo=180s elev=35.3deg humid= 52% sunelev=-15.2deg (moon at  86.0deg phase=0.46 elev=+28.0 )
AL_20110624_021810187_000002_00740301   100 stars filter C [41601.7s - 41781.7s] expo=180s elev=33.2deg humid= 52% sunelev=-13.2deg (moon at  86.0deg phase=0.46 elev=+31.0 )
AL_20110624_022120922_000002_00740301   105 stars filter R [41792.7s - 41972.7s] expo=180s elev=32.9deg humid= 52% sunelev=-12.9deg (moon at  86.0deg phase=0.46 elev=+31.0 )
AL_20110624_022431409_000002_00740301    71 stars filter V [41983.1s - 42163.1s] expo=180s elev=32.5deg humid= 51% sunelev=-12.5deg (moon at  86.0deg phase=0.46 elev=+32.0 )
AL_20110624_024252390_000002_00740401    59 stars filter C [43084.1s - 43264.1s] expo=180s elev=30.2deg humid= 47% sunelev=-10.3deg (moon at  87.0deg phase=0.46 elev=+35.0 )
AL_20110624_024602906_000002_00740401    64 stars filter R [43274.5s - 43454.5s] expo=180s elev=29.8deg humid= 45% sunelev=-9.9deg (moon at  87.0deg phase=0.46 elev=+35.0 )
AL_20110624_024913406_000002_00740401    13 stars filter V [43465.2s - 43645.2s] expo=180s elev=29.4deg humid= 45% sunelev=-9.5deg (moon at  87.0deg phase=0.46 elev=+36.0 )
Informations from GCN notice:
This is not a GRB (a retractation has been edited)
Date of GRB : 2455736.1122994213 2011-06-23T14:41:42.670
Date of notice : 2455736.1124537038 2011-06-23T14:41:56.000
Refined position : yes (error radius=4.6 arcsec)
RA(J2000.0) : 280.330400 18h41m19s2
DEC(J2000.0) : -4.935500 -04d56m07s79
Error box : x=47:49 y=64:67 (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=27.379606 lat=0.006075
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=19.941
Assuming Rv=3.1: Av=66.103 Ar=53.302 Ai=38.685
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 110623: 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 110623 detected by SWIFT
(trigger 455904) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 20362.5s after the GRB trigger
(20349.2s after the notice). The elevation of the field increased from
19 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2011-06-23T14:41:42.720

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+20362.5s to t0+20422.5s : R > 15.1

The second image is 30.0s exposure in tracking mode:
t0+20432.4s to t0+20462.4s : R > 16.2

We co-added a series of exposures:
t0+20432.4s to t0+20864.3s : 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 20362.5s 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= 27.3796 lat= +0.0061
and the galactic extinction in R band is 53.3 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.
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