GRB120116_180647_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20120116_180730250_120116_18060     0 star  filter C [   32.7s -    92.7s] expo= 60s elev=73.0deg humid= 71% sunelev=-19.1deg (moon at 158.0deg phase=0.47 elev=-61.0 )
AL_20120116_182947375_000002_43852801     9 stars filter C [ 1304.4s -  1394.4s] expo= 90s elev=69.5deg humid= 70% sunelev=-22.8deg (moon at 158.0deg phase=0.47 elev=-59.0 )
AL_20120116_183127657_000002_43852801     9 stars filter C [ 1404.7s -  1494.7s] expo= 90s elev=69.2deg humid= 70% sunelev=-23.1deg (moon at 158.0deg phase=0.47 elev=-59.0 )
AL_20120116_183307946_000002_43852801     7 stars filter R [ 1505.0s -  1595.0s] expo= 90s elev=68.9deg humid= 70% sunelev=-23.4deg (moon at 158.0deg phase=0.47 elev=-59.0 )
AL_20120116_183448179_000002_43852801     9 stars filter C [ 1605.2s -  1695.2s] expo= 90s elev=68.6deg humid= 70% sunelev=-23.7deg (moon at 158.0deg phase=0.47 elev=-59.0 )
AL_20120116_183628695_000002_43852801    11 stars filter C [ 1705.8s -  1795.8s] expo= 90s elev=68.3deg humid= 69% sunelev=-24.0deg (moon at 158.0deg phase=0.47 elev=-59.0 )
AL_20120116_183809429_000002_43852801     6 stars filter R [ 1806.5s -  1896.5s] expo= 90s elev=68.0deg humid= 69% sunelev=-24.3deg (moon at 158.0deg phase=0.47 elev=-59.0 )
AL_20120116_184607672_000002_43852901    13 stars filter C [ 2194.7s -  2374.7s] expo=180s elev=66.8deg humid= 70% sunelev=-25.5deg (moon at 158.0deg phase=0.47 elev=-58.0 )
AL_20120116_184917671_000002_43852901    14 stars filter C [ 2384.8s -  2564.8s] expo=180s elev=66.2deg humid= 70% sunelev=-26.1deg (moon at 158.0deg phase=0.47 elev=-58.0 )
AL_20120116_185227695_000002_43852901     9 stars filter R [ 2574.8s -  2754.8s] expo=180s elev=65.7deg humid= 70% sunelev=-26.6deg (moon at 158.0deg phase=0.47 elev=-58.0 )
AL_20120116_185537477_000002_43852901    11 stars filter C [ 2764.6s -  2944.6s] expo=180s elev=65.1deg humid= 70% sunelev=-27.2deg (moon at 158.0deg phase=0.47 elev=-57.0 )
AL_20120116_185847570_000002_43852901    12 stars filter C [ 2954.7s -  3134.7s] expo=180s elev=64.6deg humid= 70% sunelev=-27.8deg (moon at 158.0deg phase=0.47 elev=-57.0 )
AL_20120116_190158304_000002_43852901    12 stars filter R [ 3145.4s -  3325.4s] expo=180s elev=64.0deg humid= 70% sunelev=-28.3deg (moon at 158.0deg phase=0.47 elev=-57.0 )
AL_20120116_190610528_000002_43853001    12 stars filter C [ 3397.6s -  3577.6s] expo=180s elev=63.3deg humid= 70% sunelev=-29.1deg (moon at 158.0deg phase=0.47 elev=-56.0 )
AL_20120116_190920590_000002_43853001    14 stars filter C [ 3587.7s -  3767.7s] expo=180s elev=62.7deg humid= 70% sunelev=-29.7deg (moon at 158.0deg phase=0.47 elev=-56.0 )
AL_20120116_191231566_000002_43853001    11 stars filter R [ 3778.6s -  3958.6s] expo=180s elev=62.1deg humid= 69% sunelev=-30.2deg (moon at 158.0deg phase=0.47 elev=-56.0 )
AL_20120116_191541315_000002_43853001    13 stars filter C [ 3968.4s -  4148.4s] expo=180s elev=61.6deg humid= 69% sunelev=-30.8deg (moon at 158.0deg phase=0.47 elev=-55.0 )
AL_20120116_191851377_000002_43853001    12 stars filter C [ 4158.5s -  4338.5s] expo=180s elev=61.0deg humid= 69% sunelev=-31.4deg (moon at 158.0deg phase=0.47 elev=-55.0 )
AL_20120116_192202283_000002_43853001    11 stars filter R [ 4349.4s -  4529.4s] expo=180s elev=60.4deg humid= 69% sunelev=-32.0deg (moon at 158.0deg phase=0.47 elev=-55.0 )
AL_20120116_192607385_000002_43853101    14 stars filter C [ 4594.5s -  4774.5s] expo=180s elev=59.7deg humid= 69% sunelev=-32.7deg (moon at 158.0deg phase=0.47 elev=-54.0 )
AL_20120116_192918369_000002_43853101    13 stars filter C [ 4785.5s -  4965.5s] expo=180s elev=59.1deg humid= 69% sunelev=-33.3deg (moon at 158.0deg phase=0.47 elev=-54.0 )
AL_20120116_193229313_000002_43853101     9 stars filter R [ 4976.4s -  5156.4s] expo=180s elev=58.5deg humid= 69% sunelev=-33.9deg (moon at 158.0deg phase=0.47 elev=-53.0 )
AL_20120116_193539157_000002_43853101    16 stars filter C [ 5166.2s -  5346.2s] expo=180s elev=58.0deg humid= 69% sunelev=-34.4deg (moon at 158.0deg phase=0.47 elev=-53.0 )
AL_20120116_193849391_000002_43853101    13 stars filter C [ 5356.5s -  5536.5s] expo=180s elev=57.4deg humid= 69% sunelev=-35.0deg (moon at 158.0deg phase=0.47 elev=-52.0 )
AL_20120116_194159937_000002_43853101     8 stars filter R [ 5547.0s -  5727.0s] expo=180s elev=56.8deg humid= 69% sunelev=-35.6deg (moon at 158.0deg phase=0.47 elev=-52.0 )
AL_20120116_194613929_000002_43853201    13 stars filter C [ 5801.1s -  5981.1s] expo=180s elev=56.1deg humid= 69% sunelev=-36.3deg (moon at 158.0deg phase=0.47 elev=-51.0 )
AL_20120116_194924272_000002_43853201    15 stars filter C [ 5991.4s -  6171.4s] expo=180s elev=55.5deg humid= 69% sunelev=-36.9deg (moon at 158.0deg phase=0.46 elev=-51.0 )
AL_20120116_195235045_000002_43853201     8 stars filter R [ 6182.1s -  6362.1s] expo=180s elev=54.9deg humid= 69% sunelev=-37.5deg (moon at 158.0deg phase=0.46 elev=-51.0 )
AL_20120116_195544968_000002_43853201    14 stars filter C [ 6372.1s -  6552.1s] expo=180s elev=54.3deg humid= 69% sunelev=-38.0deg (moon at 158.0deg phase=0.46 elev=-50.0 )
AL_20120116_195855124_000002_43853201    15 stars filter C [ 6562.2s -  6742.2s] expo=180s elev=53.8deg humid= 69% sunelev=-38.6deg (moon at 158.0deg phase=0.46 elev=-50.0 )
AL_20120116_200206049_000002_43853201     8 stars filter R [ 6753.1s -  6933.1s] expo=180s elev=53.2deg humid= 69% sunelev=-39.2deg (moon at 158.0deg phase=0.46 elev=-49.0 )
AL_20120116_200616909_000002_43853301    14 stars filter C [ 7004.0s -  7184.0s] expo=180s elev=52.4deg humid= 69% sunelev=-39.9deg (moon at 158.0deg phase=0.46 elev=-49.0 )
AL_20120116_200927205_000002_43853301    11 stars filter C [ 7194.3s -  7374.3s] expo=180s elev=51.8deg humid= 68% sunelev=-40.5deg (moon at 158.0deg phase=0.46 elev=-48.0 )
AL_20120116_201237197_000002_43853301     8 stars filter R [ 7384.3s -  7564.3s] expo=180s elev=51.3deg humid= 69% sunelev=-41.0deg (moon at 158.0deg phase=0.46 elev=-48.0 )
AL_20120116_201547011_000002_43853301    13 stars filter C [ 7574.1s -  7754.1s] expo=180s elev=50.7deg humid= 69% sunelev=-41.6deg (moon at 158.0deg phase=0.46 elev=-47.0 )
AL_20120116_201857978_000002_43853301    13 stars filter C [ 7765.1s -  7945.1s] expo=180s elev=50.1deg humid= 69% sunelev=-42.2deg (moon at 158.0deg phase=0.46 elev=-47.0 )
AL_20120116_202208983_000002_43853301    11 stars filter R [ 7956.0s -  8136.0s] expo=180s elev=49.6deg humid= 68% sunelev=-42.7deg (moon at 158.0deg phase=0.46 elev=-46.0 )
AL_20120116_202617827_000002_43853401    13 stars filter C [ 8205.0s -  8385.0s] expo=180s elev=48.8deg humid= 68% sunelev=-43.5deg (moon at 158.0deg phase=0.46 elev=-46.0 )
AL_20120116_202928217_000002_43853401    13 stars filter C [ 8395.3s -  8575.3s] expo=180s elev=48.2deg humid= 68% sunelev=-44.0deg (moon at 158.0deg phase=0.46 elev=-45.0 )
AL_20120116_203238727_000002_43853401     9 stars filter R [ 8585.8s -  8765.8s] expo=180s elev=47.7deg humid= 68% sunelev=-44.6deg (moon at 158.0deg phase=0.46 elev=-45.0 )
AL_20120116_203548978_000002_43853401    14 stars filter C [ 8776.1s -  8956.1s] expo=180s elev=47.1deg humid= 68% sunelev=-45.1deg (moon at 158.0deg phase=0.46 elev=-44.0 )
AL_20120116_203859228_000002_43853401    13 stars filter C [ 8966.3s -  9146.3s] expo=180s elev=46.5deg humid= 68% sunelev=-45.7deg (moon at 158.0deg phase=0.46 elev=-44.0 )
AL_20120116_204210280_000002_43853401     8 stars filter R [ 9157.3s -  9337.3s] expo=180s elev=45.9deg humid= 68% sunelev=-46.2deg (moon at 158.0deg phase=0.46 elev=-43.0 )
AL_20120116_204619874_000002_43853501    15 stars filter C [ 9407.0s -  9587.0s] expo=180s elev=45.2deg humid= 68% sunelev=-46.9deg (moon at 158.0deg phase=0.46 elev=-43.0 )
AL_20120116_204929968_000002_43853501    13 stars filter C [ 9597.0s -  9777.0s] expo=180s elev=44.6deg humid= 67% sunelev=-47.5deg (moon at 158.0deg phase=0.46 elev=-42.0 )
AL_20120116_205240898_000002_43853501    13 stars filter R [ 9788.0s -  9968.0s] expo=180s elev=44.1deg humid= 67% sunelev=-48.0deg (moon at 158.0deg phase=0.46 elev=-42.0 )
AL_20120116_205550929_000002_43853501    13 stars filter C [ 9978.0s - 10158.0s] expo=180s elev=43.5deg humid= 66% sunelev=-48.6deg (moon at 158.0deg phase=0.46 elev=-41.0 )
AL_20120116_205901913_000002_43853501    12 stars filter C [10169.0s - 10349.0s] expo=180s elev=42.9deg humid= 65% sunelev=-49.1deg (moon at 158.0deg phase=0.46 elev=-41.0 )
AL_20120116_210212169_000002_43853501    12 stars filter R [10359.3s - 10539.3s] expo=180s elev=42.4deg humid= 65% sunelev=-49.7deg (moon at 158.0deg phase=0.46 elev=-40.0 )
AL_20120116_210622310_000002_43853601    12 stars filter C [10609.4s - 10789.4s] expo=180s elev=41.6deg humid= 65% sunelev=-50.3deg (moon at 158.0deg phase=0.46 elev=-39.0 )
AL_20120116_210932591_000002_43853601    12 stars filter C [10799.7s - 10979.7s] expo=180s elev=41.1deg humid= 64% sunelev=-50.9deg (moon at 158.0deg phase=0.46 elev=-39.0 )
AL_20120116_211243612_000002_43853601    11 stars filter R [10990.6s - 11170.6s] expo=180s elev=40.5deg humid= 63% sunelev=-51.4deg (moon at 158.0deg phase=0.46 elev=-38.0 )
AL_20120116_211554534_000002_43853601    15 stars filter C [11181.6s - 11361.6s] expo=180s elev=39.9deg humid= 63% sunelev=-51.9deg (moon at 158.0deg phase=0.46 elev=-38.0 )
AL_20120116_211904378_000002_43853601    13 stars filter C [11371.4s - 11551.4s] expo=180s elev=39.4deg humid= 62% sunelev=-52.4deg (moon at 158.0deg phase=0.46 elev=-37.0 )
AL_20120116_212215291_000002_43853601     7 stars filter R [11562.4s - 11742.4s] expo=180s elev=38.8deg humid= 62% sunelev=-53.0deg (moon at 158.0deg phase=0.46 elev=-37.0 )
AL_20120116_212618995_000002_43853701    13 stars filter C [11806.0s - 11986.0s] expo=180s elev=38.1deg humid= 61% sunelev=-53.6deg (moon at 158.0deg phase=0.46 elev=-36.0 )
AL_20120116_212929198_000002_43853701    11 stars filter C [11996.3s - 12176.3s] expo=180s elev=37.5deg humid= 62% sunelev=-54.1deg (moon at 158.0deg phase=0.46 elev=-36.0 )
AL_20120116_213240219_000002_43853701     9 stars filter R [12187.3s - 12367.3s] expo=180s elev=37.0deg humid= 62% sunelev=-54.6deg (moon at 158.0deg phase=0.46 elev=-35.0 )
AL_20120116_213550218_000002_43853701    12 stars filter C [12377.3s - 12557.3s] expo=180s elev=36.4deg humid= 62% sunelev=-55.1deg (moon at 158.0deg phase=0.46 elev=-35.0 )
AL_20120116_213900031_000002_43853701    11 stars filter C [12567.1s - 12747.1s] expo=180s elev=35.9deg humid= 62% sunelev=-55.6deg (moon at 158.0deg phase=0.46 elev=-34.0 )
AL_20120116_214211053_000002_43853701     8 stars filter R [12758.1s - 12938.1s] expo=180s elev=35.3deg humid= 62% sunelev=-56.1deg (moon at 158.0deg phase=0.46 elev=-34.0 )
AL_20120116_214625804_000002_43853801    12 stars filter C [13012.9s - 13192.9s] expo=180s elev=34.6deg humid= 62% sunelev=-56.7deg (moon at 158.0deg phase=0.46 elev=-33.0 )
AL_20120116_214936038_000002_43853801    11 stars filter C [13203.2s - 13383.2s] expo=180s elev=34.0deg humid= 62% sunelev=-57.2deg (moon at 158.0deg phase=0.46 elev=-32.0 )
AL_20120116_215246375_000002_43853801     8 stars filter R [13393.4s - 13573.4s] expo=180s elev=33.5deg humid= 61% sunelev=-57.7deg (moon at 158.0deg phase=0.46 elev=-32.0 )
AL_20120116_215557297_000002_43853801    12 stars filter C [13584.4s - 13764.4s] expo=180s elev=32.9deg humid= 61% sunelev=-58.1deg (moon at 158.0deg phase=0.46 elev=-31.0 )
AL_20120116_215908047_000002_43853801    12 stars filter C [13775.1s - 13955.1s] expo=180s elev=32.4deg humid= 62% sunelev=-58.6deg (moon at 158.0deg phase=0.46 elev=-31.0 )
AL_20120116_220218148_000002_43853801     8 stars filter R [13965.2s - 14145.2s] expo=180s elev=31.8deg humid= 62% sunelev=-59.0deg (moon at 158.0deg phase=0.46 elev=-30.0 )
AL_20120116_220637273_000002_43853901    11 stars filter C [14224.4s - 14404.4s] expo=180s elev=31.1deg humid= 62% sunelev=-59.6deg (moon at 158.0deg phase=0.46 elev=-29.0 )
AL_20120116_220947476_000002_43853901     9 stars filter C [14414.6s - 14594.6s] expo=180s elev=30.6deg humid= 62% sunelev=-60.1deg (moon at 158.0deg phase=0.46 elev=-29.0 )
AL_20120116_221258495_000002_43853901     8 stars filter R [14605.6s - 14785.6s] expo=180s elev=30.0deg humid= 62% sunelev=-60.5deg (moon at 158.0deg phase=0.46 elev=-28.0 )
AL_20120116_221609010_000002_43853901     9 stars filter C [14796.1s - 14976.1s] expo=180s elev=29.5deg humid= 62% sunelev=-60.9deg (moon at 158.0deg phase=0.46 elev=-28.0 )
AL_20120116_221919276_000002_43853901     9 stars filter C [14986.4s - 15166.4s] expo=180s elev=28.9deg humid= 62% sunelev=-61.3deg (moon at 158.0deg phase=0.46 elev=-27.0 )
AL_20120116_222230253_000002_43853901     9 stars filter R [15177.3s - 15357.3s] expo=180s elev=28.4deg humid= 62% sunelev=-61.7deg (moon at 158.0deg phase=0.46 elev=-27.0 )
AL_20120116_222629955_000002_43854001    11 stars filter C [15417.0s - 15597.0s] expo=180s elev=27.7deg humid= 62% sunelev=-62.2deg (moon at 158.0deg phase=0.46 elev=-26.0 )
AL_20120116_222940737_000002_43854001    11 stars filter C [15607.8s - 15787.8s] expo=180s elev=27.2deg humid= 62% sunelev=-62.5deg (moon at 158.0deg phase=0.46 elev=-25.0 )
AL_20120116_223250539_000002_43854001     9 stars filter R [15797.6s - 15977.6s] expo=180s elev=26.7deg humid= 62% sunelev=-62.9deg (moon at 158.0deg phase=0.45 elev=-25.0 )
AL_20120116_223600523_000002_43854001    12 stars filter C [15987.6s - 16167.6s] expo=180s elev=26.1deg humid= 62% sunelev=-63.2deg (moon at 158.0deg phase=0.45 elev=-24.0 )
AL_20120116_223911054_000002_43854001    12 stars filter C [16178.1s - 16358.1s] expo=180s elev=25.6deg humid= 62% sunelev=-63.6deg (moon at 158.0deg phase=0.45 elev=-24.0 )
AL_20120116_224221533_000002_43854001     8 stars filter R [16368.6s - 16548.6s] expo=180s elev=25.1deg humid= 62% sunelev=-63.9deg (moon at 158.0deg phase=0.45 elev=-23.0 )
AL_20120116_225229554_000002_43854101     9 stars filter C [16976.7s - 17156.7s] expo=180s elev=23.4deg humid= 61% sunelev=-64.9deg (moon at 158.0deg phase=0.45 elev=-22.0 )
AL_20120116_225539835_000002_43854101     8 stars filter R [17167.0s - 17347.0s] expo=180s elev=22.9deg humid= 61% sunelev=-65.1deg (moon at 158.0deg phase=0.45 elev=-21.0 )
AL_20120116_225850366_000002_43854101     7 stars filter V [17357.5s - 17537.5s] expo=180s elev=22.4deg humid= 61% sunelev=-65.4deg (moon at 158.0deg phase=0.45 elev=-21.0 )
AL_20120116_231726111_000002_43854201     9 stars filter C [18473.2s - 18653.2s] expo=180s elev=19.4deg humid= 59% sunelev=-66.6deg (moon at 158.0deg phase=0.45 elev=-17.0 )
AL_20120116_232036378_000002_43854201     6 stars filter R [18663.5s - 18843.5s] expo=180s elev=18.9deg humid= 59% sunelev=-66.7deg (moon at 158.0deg phase=0.45 elev=-17.0 )
AL_20120116_232346946_000002_43854201     6 stars filter V [18854.0s - 19034.0s] expo=180s elev=18.4deg humid= 59% sunelev=-66.8deg (moon at 158.0deg phase=0.45 elev=-16.0 )
AL_20120116_234216820_000002_43854301    11 stars filter C [19963.9s - 20143.9s] expo=180s elev=15.6deg humid= 59% sunelev=-67.2deg (moon at 157.0deg phase=0.45 elev=-13.0 )
AL_20120116_234527787_000002_43854301     6 stars filter R [20154.9s - 20334.9s] expo=180s elev=15.1deg humid= 58% sunelev=-67.2deg (moon at 157.0deg phase=0.45 elev=-13.0 )
AL_20120116_234838742_000002_43854301     5 stars filter V [20345.9s - 20525.9s] expo=180s elev=14.6deg humid= 58% sunelev=-67.2deg (moon at 157.0deg phase=0.45 elev=-12.0 )
AL_20120117_000705346_000002_43854401     7 stars filter C [21452.5s - 21632.5s] expo=180s elev=11.9deg humid= 57% sunelev=-66.6deg (moon at 157.0deg phase=0.45 elev= -9.0 )
AL_20120117_001015159_000002_43854401     7 stars filter R [21642.3s - 21822.3s] expo=180s elev=11.4deg humid= 57% sunelev=-66.5deg (moon at 157.0deg phase=0.45 elev= -8.0 )
AL_20120117_001325414_000002_43854401     5 stars filter V [21832.5s - 22012.5s] expo=180s elev=11.0deg humid= 56% sunelev=-66.3deg (moon at 157.0deg phase=0.45 elev= -8.0 )
AL_20120117_003154609_000002_43854501     7 stars filter C [22941.7s - 23121.7s] expo=180s elev= 8.4deg humid= 56% sunelev=-65.0deg (moon at 157.0deg phase=0.45 elev= -5.0 )
AL_20120117_003505568_000002_43854501     5 stars filter R [23132.6s - 23312.6s] expo=180s elev= 7.9deg humid= 56% sunelev=-64.8deg (moon at 157.0deg phase=0.45 elev= -4.0 )
AL_20120117_003816069_000002_43854501     4 stars filter V [23323.1s - 23503.1s] expo=180s elev= 7.5deg humid= 56% sunelev=-64.5deg (moon at 157.0deg phase=0.45 elev= -4.0 )
AL_20120117_005649691_000002_43854601     5 stars filter C [24436.8s - 24616.8s] expo=180s elev= 5.1deg humid= 56% sunelev=-62.5deg (moon at 157.0deg phase=0.45 elev= -1.0 )
AL_20120117_010000224_000002_43854601     5 stars filter R [24627.3s - 24807.3s] expo=180s elev= 4.7deg humid= 56% sunelev=-62.2deg (moon at 157.0deg phase=0.45 elev= +0.0 )
AL_20120117_010310446_000002_43854601     3 stars filter V [24817.5s - 24997.5s] expo=180s elev= 4.3deg humid= 56% sunelev=-61.8deg (moon at 157.0deg phase=0.45 elev= +0.0 )
Informations from GCN notice:
This is a GRB
Date of GRB : 2455943.2544913194 2012-01-16T18:06:28.049
Date of notice : 2455943.2547106482 2012-01-16T18:06:47.000
Refined position : yes (error radius=2.3 arcsec)
RA(J2000.0) : 16.248000 01h04m59s5
DEC(J2000.0) : 33.929000 +33d55m44s39
Error box : x=64:65 y=63:64 (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=126.142224 lat=-28.858241
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.071
Assuming Rv=3.1: Av=0.234 Ar=0.189 Ai=0.137
extmap.fit: Extinction map E(B-V) from Schlegel:

Field of View is about 76 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 120116: TAROT Calern observatory optical observations
----------------------------------------------------------------------
Klotz A. (IRAP-OMP), Gendre B. (ASDC/INAF-OAR),
Boer M. (OCA-CNRS), Atteia J.L. (IRAP-OMP) report:

We imaged the field of GRB 120116 detected by SWIFT
(trigger 511866) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 32.7s after the GRB trigger
(13.6s after the notice). The elevation of the field decreased from
73 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2012-01-16T18:06:27.936

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+32.7s to t0+92.7s : R > 15.1

The second image is 90.0s exposure in tracking mode:
t0+1304.4s to t0+1394.4s : R > 16.2

We co-added a series of exposures:
t0+1304.4s to t0+1896.5s : 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 32.7s 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=126.1422 lat=-28.8582
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.
======================================================================