GRB100401_190753_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20100401_191422423_379403_89440400    45 stars filter C [ 2315.9s -  2405.9s] expo= 90s elev=51.4deg humid= 48% sunelev=-14.1deg (moon at 149.0deg phase=0.79 elev=-21.0 )
AL_20100401_191611251_379403_89440400    47 stars filter C [ 2424.8s -  2514.8s] expo= 90s elev=51.1deg humid= 48% sunelev=-14.4deg (moon at 149.0deg phase=0.79 elev=-20.0 )
AL_20100401_191758103_379403_89440400    39 stars filter R [ 2531.6s -  2621.6s] expo= 90s elev=50.8deg humid= 48% sunelev=-14.7deg (moon at 149.0deg phase=0.79 elev=-20.0 )
AL_20100401_191946822_379403_89440400    59 stars filter C [ 2638.5s -  2728.5s] expo= 90s elev=50.5deg humid= 48% sunelev=-15.0deg (moon at 149.0deg phase=0.79 elev=-20.0 )
AL_20100401_192131697_379403_89440400    51 stars filter C [ 2745.3s -  2835.3s] expo= 90s elev=50.2deg humid= 48% sunelev=-15.3deg (moon at 149.0deg phase=0.79 elev=-20.0 )
AL_20100401_192320432_379403_89440400    22 stars filter R [ 2852.1s -  2942.1s] expo= 90s elev=49.9deg humid= 48% sunelev=-15.6deg (moon at 149.0deg phase=0.79 elev=-19.0 )
AL_20100401_193111001_379405_89440600    30 stars filter C [ 3233.1s -  3413.1s] expo=180s elev=48.7deg humid= 48% sunelev=-16.6deg (moon at 149.0deg phase=0.79 elev=-18.0 )
AL_20100401_193426798_379405_89440600    28 stars filter C [ 3428.6s -  3608.6s] expo=180s elev=48.1deg humid= 49% sunelev=-17.2deg (moon at 149.0deg phase=0.79 elev=-17.0 )
AL_20100401_193744813_379405_89440600    23 stars filter R [ 3628.1s -  3808.1s] expo=180s elev=47.6deg humid= 49% sunelev=-17.7deg (moon at 149.0deg phase=0.79 elev=-17.0 )
AL_20100401_194059974_379405_89440600    59 stars filter C [ 3823.7s -  4003.7s] expo=180s elev=47.0deg humid= 49% sunelev=-18.2deg (moon at 149.0deg phase=0.79 elev=-16.0 )
AL_20100401_194415630_379405_89440600    52 stars filter C [ 4019.2s -  4199.2s] expo=180s elev=46.5deg humid= 50% sunelev=-18.8deg (moon at 149.0deg phase=0.79 elev=-16.0 )
AL_20100401_194734427_379405_89440600    42 stars filter R [ 4217.0s -  4397.0s] expo=180s elev=46.0deg humid= 50% sunelev=-19.3deg (moon at 149.0deg phase=0.79 elev=-15.0 )
AL_20100401_200143777_379407_89440800    38 stars filter C [ 5065.3s -  5245.3s] expo=180s elev=43.6deg humid= 50% sunelev=-21.5deg (moon at 149.0deg phase=0.79 elev=-13.0 )
AL_20100401_200502637_379407_89440800    49 stars filter C [ 5264.8s -  5444.8s] expo=180s elev=43.1deg humid= 51% sunelev=-22.1deg (moon at 149.0deg phase=0.79 elev=-12.0 )
AL_20100401_200820845_379407_89440800    29 stars filter R [ 5464.4s -  5644.4s] expo=180s elev=42.5deg humid= 51% sunelev=-22.6deg (moon at 149.0deg phase=0.79 elev=-12.0 )
AL_20100401_201140111_379407_89440800    50 stars filter C [ 5661.9s -  5841.9s] expo=180s elev=42.0deg humid= 51% sunelev=-23.1deg (moon at 149.0deg phase=0.79 elev=-11.0 )
AL_20100401_201459252_379407_89440800    36 stars filter C [ 5861.5s -  6041.5s] expo=180s elev=41.5deg humid= 51% sunelev=-23.6deg (moon at 149.0deg phase=0.79 elev=-11.0 )
AL_20100401_201817458_379407_89440800    31 stars filter R [ 6061.0s -  6241.0s] expo=180s elev=40.9deg humid= 50% sunelev=-24.1deg (moon at 149.0deg phase=0.79 elev=-10.0 )
AL_20100401_204057999_379409_89441000     2 stars filter C [ 7421.6s -  7601.6s] expo=180s elev=37.3deg humid= 46% sunelev=-27.4deg (moon at 149.0deg phase=0.79 elev= -7.0 )
AL_20100401_204413561_379409_89441000     8 stars filter C [ 7617.1s -  7797.1s] expo=180s elev=36.8deg humid= 46% sunelev=-27.9deg (moon at 149.0deg phase=0.79 elev= -6.0 )
AL_20100401_204732358_379409_89441000     7 stars filter R [ 7814.6s -  7994.6s] expo=180s elev=36.3deg humid= 45% sunelev=-28.3deg (moon at 149.0deg phase=0.79 elev= -6.0 )
AL_20100401_205050578_379409_89441000    15 stars filter C [ 8014.2s -  8194.2s] expo=180s elev=35.8deg humid= 43% sunelev=-28.8deg (moon at 149.0deg phase=0.79 elev= -5.0 )
AL_20100401_205410031_379409_89441000    16 stars filter C [ 8212.0s -  8392.0s] expo=180s elev=35.3deg humid= 45% sunelev=-29.2deg (moon at 149.0deg phase=0.79 elev= -5.0 )
AL_20100401_205728750_379409_89441000    14 stars filter R [ 8411.2s -  8591.2s] expo=180s elev=34.7deg humid= 46% sunelev=-29.7deg (moon at 149.0deg phase=0.79 elev= -4.0 )
AL_20100401_210045266_379410_89441100     7 stars filter C [ 8608.8s -  8788.8s] expo=180s elev=34.2deg humid= 48% sunelev=-30.1deg (moon at 149.0deg phase=0.79 elev= -4.0 )
AL_20100401_210402266_379410_89441100    28 stars filter C [ 8804.3s -  8984.3s] expo=180s elev=33.7deg humid= 49% sunelev=-30.5deg (moon at 149.0deg phase=0.79 elev= -3.0 )
AL_20100401_210718297_379410_89441100    30 stars filter R [ 8999.8s -  9179.8s] expo=180s elev=33.2deg humid= 50% sunelev=-30.9deg (moon at 149.0deg phase=0.79 elev= -3.0 )
AL_20100401_211037019_379410_89441100    56 stars filter C [ 9199.4s -  9379.4s] expo=180s elev=32.7deg humid= 49% sunelev=-31.4deg (moon at 149.0deg phase=0.79 elev= -2.0 )
AL_20100401_211356628_379410_89441100    53 stars filter C [ 9398.9s -  9578.9s] expo=180s elev=32.2deg humid= 49% sunelev=-31.8deg (moon at 149.0deg phase=0.79 elev= -2.0 )
AL_20100401_211714925_379410_89441100    47 stars filter R [ 9598.4s -  9778.4s] expo=180s elev=31.7deg humid= 49% sunelev=-32.2deg (moon at 150.0deg phase=0.79 elev= -1.0 )
AL_20100401_212034404_379411_89441200    53 stars filter C [ 9798.0s -  9978.0s] expo=180s elev=31.2deg humid= 49% sunelev=-32.6deg (moon at 150.0deg phase=0.79 elev= -1.0 )
AL_20100401_212353170_379411_89441200    59 stars filter C [ 9995.5s - 10175.5s] expo=180s elev=30.7deg humid= 51% sunelev=-33.0deg (moon at 150.0deg phase=0.79 elev= +0.0 )
AL_20100401_212709545_379411_89441200    39 stars filter R [10193.1s - 10373.1s] expo=180s elev=30.2deg humid= 50% sunelev=-33.4deg (moon at 150.0deg phase=0.79 elev= +0.0 )
AL_20100401_213028765_379411_89441200    58 stars filter C [10390.6s - 10570.6s] expo=180s elev=29.7deg humid= 50% sunelev=-33.7deg (moon at 150.0deg phase=0.79 elev= +0.0 )
AL_20100401_213346812_379411_89441200    40 stars filter C [10590.2s - 10770.2s] expo=180s elev=29.2deg humid= 50% sunelev=-34.1deg (moon at 150.0deg phase=0.79 elev= +0.0 )
AL_20100401_213705593_379411_89441200    38 stars filter R [10787.8s - 10967.8s] expo=180s elev=28.8deg humid= 50% sunelev=-34.5deg (moon at 150.0deg phase=0.79 elev= +1.0 )
AL_20100401_215952746_379413_89441400    40 stars filter C [12156.3s - 12336.3s] expo=180s elev=25.5deg humid= 47% sunelev=-36.8deg (moon at 150.0deg phase=0.79 elev= +4.0 )
AL_20100401_220308496_379413_89441400    46 stars filter C [12351.8s - 12531.8s] expo=180s elev=25.0deg humid= 47% sunelev=-37.1deg (moon at 150.0deg phase=0.79 elev= +4.0 )
AL_20100401_220627730_379413_89441400    33 stars filter R [12549.4s - 12729.4s] expo=180s elev=24.5deg humid= 46% sunelev=-37.4deg (moon at 150.0deg phase=0.79 elev= +5.0 )
AL_20100401_220946922_379413_89441400    42 stars filter C [12748.9s - 12928.9s] expo=180s elev=24.1deg humid= 46% sunelev=-37.7deg (moon at 150.0deg phase=0.79 elev= +5.0 )
AL_20100401_221304938_379413_89441400    40 stars filter C [12948.5s - 13128.5s] expo=180s elev=23.6deg humid= 45% sunelev=-37.9deg (moon at 150.0deg phase=0.79 elev= +6.0 )
AL_20100401_221623938_379413_89441400    30 stars filter R [13146.0s - 13326.0s] expo=180s elev=23.2deg humid= 44% sunelev=-38.2deg (moon at 150.0deg phase=0.79 elev= +6.0 )
AL_20100401_221939973_379414_89441500    48 stars filter C [13343.5s - 13523.5s] expo=180s elev=22.7deg humid= 45% sunelev=-38.5deg (moon at 150.0deg phase=0.79 elev= +7.0 )
AL_20100401_222258692_379414_89441500    41 stars filter C [13541.1s - 13721.1s] expo=180s elev=22.3deg humid= 44% sunelev=-38.7deg (moon at 150.0deg phase=0.79 elev= +7.0 )
AL_20100401_222618317_379414_89441500    35 stars filter R [13740.6s - 13920.6s] expo=180s elev=21.8deg humid= 43% sunelev=-38.9deg (moon at 150.0deg phase=0.79 elev= +7.0 )
AL_20100401_222936618_379414_89441500    36 stars filter C [13940.1s - 14120.1s] expo=180s elev=21.4deg humid= 44% sunelev=-39.2deg (moon at 150.0deg phase=0.79 elev= +8.0 )
AL_20100401_223255259_379414_89441500    37 stars filter C [14138.0s - 14318.0s] expo=180s elev=20.9deg humid= 44% sunelev=-39.4deg (moon at 150.0deg phase=0.79 elev= +8.0 )
AL_20100401_223614884_379414_89441500    33 stars filter R [14337.2s - 14517.2s] expo=180s elev=20.5deg humid= 42% sunelev=-39.6deg (moon at 150.0deg phase=0.79 elev= +9.0 )
AL_20100401_225858297_379416_89441700    16 stars filter C [15701.8s - 15881.8s] expo=180s elev=17.5deg humid= 41% sunelev=-40.8deg (moon at 150.0deg phase=0.78 elev=+11.0 )
AL_20100401_230217362_379416_89441700    26 stars filter C [15899.4s - 16079.4s] expo=180s elev=17.1deg humid= 40% sunelev=-40.9deg (moon at 150.0deg phase=0.78 elev=+12.0 )
AL_20100401_230535347_379416_89441700    12 stars filter R [16098.9s - 16278.9s] expo=180s elev=16.7deg humid= 41% sunelev=-41.0deg (moon at 150.0deg phase=0.78 elev=+12.0 )
AL_20100401_230853987_379416_89441700     0 star  filter C [16296.4s - 16476.4s] expo=180s elev=16.3deg humid= 44% sunelev=-41.1deg (moon at 150.0deg phase=0.78 elev=+13.0 )
AL_20100401_231212483_379416_89441700    25 stars filter C [16496.0s - 16676.0s] expo=180s elev=15.9deg humid= 49% sunelev=-41.2deg (moon at 150.0deg phase=0.78 elev=+13.0 )
AL_20100401_231531295_379416_89441700    27 stars filter R [16693.5s - 16873.5s] expo=180s elev=15.5deg humid= 56% sunelev=-41.3deg (moon at 150.0deg phase=0.78 elev=+13.0 )
AL_20100401_234633388_379276_89427700    15 stars filter V [18556.0s - 18736.0s] expo=180s elev=11.9deg humid= 60% sunelev=-41.5deg (moon at 151.0deg phase=0.78 elev=+16.0 )
AL_20100401_234952006_379276_89427700    23 stars filter R [18755.5s - 18935.5s] expo=180s elev=11.5deg humid= 60% sunelev=-41.4deg (moon at 151.0deg phase=0.78 elev=+17.0 )
AL_20100401_235307474_379276_89427700    20 stars filter I [18951.0s - 19131.0s] expo=180s elev=11.2deg humid= 59% sunelev=-41.4deg (moon at 151.0deg phase=0.78 elev=+17.0 )
AL_20100402_001128276_379277_89427800     8 stars filter V [20051.6s - 20231.6s] expo=180s elev= 9.3deg humid= 54% sunelev=-40.9deg (moon at 151.0deg phase=0.78 elev=+18.0 )
AL_20100402_001446901_379277_89427800    13 stars filter R [20249.1s - 20429.1s] expo=180s elev= 9.0deg humid= 52% sunelev=-40.8deg (moon at 151.0deg phase=0.78 elev=+19.0 )
AL_20100402_001806526_379277_89427800    14 stars filter I [20448.9s - 20628.9s] expo=180s elev= 8.6deg humid= 52% sunelev=-40.6deg (moon at 151.0deg phase=0.78 elev=+19.0 )
AL_20100402_003555726_379278_89427900     0 star  filter V [21519.0s - 21699.0s] expo=180s elev= 7.0deg humid= 63% sunelev=-39.7deg (moon at 151.0deg phase=0.78 elev=+20.0 )
AL_20100402_003912913_379278_89427900     2 stars filter R [21714.5s - 21894.5s] expo=180s elev= 6.7deg humid= 65% sunelev=-39.5deg (moon at 151.0deg phase=0.78 elev=+20.0 )
AL_20100402_004229624_379278_89427900     0 star  filter I [21912.0s - 22092.0s] expo=180s elev= 6.4deg humid= 65% sunelev=-39.3deg (moon at 151.0deg phase=0.78 elev=+21.0 )
AL_20100402_191027952_379343_89434400    23 stars filter V [88389.9s - 88569.9s] expo=180s elev=51.5deg humid= 68% sunelev=-12.9deg (moon at 157.0deg phase=0.73 elev=-33.0 )
AL_20100402_191347561_379343_89434400    34 stars filter R [88589.5s - 88769.5s] expo=180s elev=50.9deg humid= 67% sunelev=-13.5deg (moon at 157.0deg phase=0.73 elev=-32.0 )
AL_20100402_191705486_379343_89434400    33 stars filter I [88789.0s - 88969.0s] expo=180s elev=50.4deg humid= 68% sunelev=-14.0deg (moon at 157.0deg phase=0.73 elev=-32.0 )
AL_20100402_201032417_379344_89434500    30 stars filter V [91995.9s - 92175.9s] expo=180s elev=41.6deg humid= 69% sunelev=-22.7deg (moon at 158.0deg phase=0.72 elev=-22.0 )
AL_20100402_201351277_379344_89434500    37 stars filter R [92193.5s - 92373.5s] expo=180s elev=41.0deg humid= 69% sunelev=-23.2deg (moon at 158.0deg phase=0.72 elev=-22.0 )
AL_20100402_201710472_379344_89434500    41 stars filter I [92393.0s - 92573.0s] expo=180s elev=40.5deg humid= 69% sunelev=-23.7deg (moon at 158.0deg phase=0.72 elev=-21.0 )
AL_20100402_212130771_379345_89434600    31 stars filter V [96253.0s - 96433.0s] expo=180s elev=30.5deg humid= 65% sunelev=-32.4deg (moon at 158.0deg phase=0.72 elev=-11.0 )
AL_20100402_212449974_379345_89434600    37 stars filter R [96452.5s - 96632.5s] expo=180s elev=30.0deg humid= 65% sunelev=-32.8deg (moon at 158.0deg phase=0.72 elev=-10.0 )
AL_20100402_212808529_379345_89434600    31 stars filter I [96652.1s - 96832.1s] expo=180s elev=29.5deg humid= 64% sunelev=-33.2deg (moon at 158.0deg phase=0.72 elev=-10.0 )
AL_20100402_223137664_379346_89434700    34 stars filter V [100459.6s - 100639.6s] expo=180s elev=20.6deg humid= 63% sunelev=-39.0deg (moon at 158.0deg phase=0.72 elev= +0.0 )
AL_20100402_223457476_379346_89434700    34 stars filter R [100659.2s - 100839.2s] expo=180s elev=20.1deg humid= 63% sunelev=-39.2deg (moon at 158.0deg phase=0.72 elev= +0.0 )
AL_20100402_223813169_379346_89434700    31 stars filter I [100857.1s - 101037.1s] expo=180s elev=19.7deg humid= 62% sunelev=-39.4deg (moon at 158.0deg phase=0.72 elev= +0.0 )
AL_20100402_234202647_379347_89434800    13 stars filter V [104684.4s - 104864.4s] expo=180s elev=12.0deg humid= 63% sunelev=-41.1deg (moon at 159.0deg phase=0.71 elev= +8.0 )
AL_20100402_234518397_379347_89434800    18 stars filter R [104882.0s - 105062.0s] expo=180s elev=11.6deg humid= 63% sunelev=-41.1deg (moon at 159.0deg phase=0.71 elev= +8.0 )
AL_20100402_234837830_379347_89434800    16 stars filter I [105079.5s - 105259.5s] expo=180s elev=11.3deg humid= 64% sunelev=-41.1deg (moon at 159.0deg phase=0.71 elev= +9.0 )
AL_20100403_005136754_379348_89434900     0 star  filter V [108858.8s - 109038.8s] expo=180s elev= 5.3deg humid= 68% sunelev=-38.3deg (moon at 159.0deg phase=0.71 elev=+15.0 )
AL_20100403_005454848_379348_89434900     0 star  filter R [109058.4s - 109238.4s] expo=180s elev= 5.0deg humid= 67% sunelev=-38.1deg (moon at 159.0deg phase=0.71 elev=+15.0 )
AL_20100403_005814019_379348_89434900     0 star  filter I [109255.9s - 109435.9s] expo=180s elev= 4.8deg humid= 66% sunelev=-37.8deg (moon at 159.0deg phase=0.71 elev=+15.0 )
AL_20100403_015910840_379349_89435000     0 star  filter V [112914.3s - 113094.3s] expo=180s elev= 1.0deg humid= 72% sunelev=-31.6deg (moon at 159.0deg phase=0.71 elev=+19.0 )
AL_20100403_020230329_379349_89435000     0 star  filter R [113113.9s - 113293.9s] expo=180s elev= 0.9deg humid= 72% sunelev=-31.2deg (moon at 159.0deg phase=0.71 elev=+19.0 )
AL_20100403_020547189_379349_89435000     0 star  filter I [113309.4s - 113489.4s] expo=180s elev= 0.7deg humid= 71% sunelev=-30.7deg (moon at 159.0deg phase=0.71 elev=+19.0 )
AL_20100405_004123990_379389_89439000     1 star  filter V [281047.6s - 281227.6s] expo=180s elev= 5.5deg humid= 53% sunelev=-38.2deg (moon at 155.0deg phase=0.58 elev= +1.0 )
AL_20100405_004439539_379389_89439000     0 star  filter R [281243.1s - 281423.1s] expo=180s elev= 5.2deg humid= 53% sunelev=-38.0deg (moon at 155.0deg phase=0.58 elev= +2.0 )
AL_20100405_004758243_379389_89439000     0 star  filter I [281440.6s - 281620.6s] expo=180s elev= 4.9deg humid= 54% sunelev=-37.8deg (moon at 155.0deg phase=0.58 elev= +2.0 )
AL_20100405_015116576_379390_89439100     0 star  filter V [285240.1s - 285420.1s] expo=180s elev= 1.0deg humid= 52% sunelev=-31.8deg (moon at 154.0deg phase=0.58 elev=+10.0 )
AL_20100405_015435390_379390_89439100     0 star  filter R [285437.7s - 285617.7s] expo=180s elev= 0.9deg humid= 53% sunelev=-31.4deg (moon at 154.0deg phase=0.58 elev=+10.0 )
AL_20100405_015753640_379390_89439100     0 star  filter I [285637.2s - 285817.2s] expo=180s elev= 0.7deg humid= 53% sunelev=-31.0deg (moon at 154.0deg phase=0.58 elev=+10.0 )
No informations from GCN notice.

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=159.867543 lat=-1.274278
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=3.187
Assuming Rv=3.1: Av=10.565 Ar=8.519 Ai=6.183
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 100401: TAROT Calern observatory optical observations
----------------------------------------------------------------------
Klotz A. (CESR-OMP), Gendre B. (IASF),
Boer M. (OHP-OAMP), Atteia J.L. (LATT-OMP) report:

We imaged the field of GRB 100401 detected by SWIFT
(trigger 418109) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 2315.9s after the GRB trigger
(XXXs after the notice). The elevation of the field decreased from
51 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2010-04-01T18:34:10.330

The first image is trailed with a duration of 90.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+2315.9s to t0+2405.9s : R > 15.1

The second image is 90.0s exposure in tracking mode:
t0+2424.8s to t0+2514.8s : R > 16.2

We co-added a series of exposures:
t0+2424.8s to t0+3413.1s : 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 2315.9s 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=159.8675 lat= -1.2743
and the galactic extinction in R band is 8.5 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.
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