GRB140430_597722_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20140430_203652113_000003_12165601    43 stars filter C [70447702.2s - 70447762.2s] expo= 60s elev=28.7deg humid= 72% sunelev=-19.3deg (moon at  43.0deg phase=0.11 elev= -6.0 )
AL_20140430_203732629_000003_12165601    39 stars filter C [70447772.7s - 70447802.7s] expo= 30s elev=28.6deg humid= 73% sunelev=-19.5deg (moon at  43.0deg phase=0.11 elev= -6.0 )
AL_20140430_203814035_000003_12165601    36 stars filter C [70447814.1s - 70447844.1s] expo= 30s elev=28.5deg humid= 73% sunelev=-19.6deg (moon at  43.0deg phase=0.11 elev= -7.0 )
AL_20140430_203855323_000003_12165601    36 stars filter C [70447855.3s - 70447885.3s] expo= 30s elev=28.3deg humid= 73% sunelev=-19.7deg (moon at  43.0deg phase=0.11 elev= -7.0 )
AL_20140430_203936307_000003_12165601    34 stars filter C [70447896.3s - 70447926.3s] expo= 30s elev=28.2deg humid= 73% sunelev=-19.7deg (moon at  43.0deg phase=0.11 elev= -7.0 )
AL_20140430_204017511_000003_12165601    34 stars filter C [70447937.5s - 70447967.5s] expo= 30s elev=28.1deg humid= 73% sunelev=-19.8deg (moon at  43.0deg phase=0.11 elev= -7.0 )
AL_20140430_204206604_000003_12165701    45 stars filter C [70447986.6s - 70448076.6s] expo= 90s elev=27.8deg humid= 72% sunelev=-19.9deg (moon at  43.0deg phase=0.11 elev= -7.0 )
AL_20140430_204347995_000003_12165701    45 stars filter C [70448088.1s - 70448178.1s] expo= 90s elev=27.5deg humid= 70% sunelev=-20.1deg (moon at  43.0deg phase=0.11 elev= -7.0 )
AL_20140430_204529198_000003_12165701    51 stars filter C [70448189.3s - 70448279.3s] expo= 90s elev=27.2deg humid= 69% sunelev=-20.3deg (moon at  43.0deg phase=0.11 elev= -8.0 )
AL_20140430_204719979_000003_12165801    43 stars filter C [70448300.0s - 70448390.0s] expo= 90s elev=26.9deg humid= 69% sunelev=-20.6deg (moon at  43.0deg phase=0.11 elev= -8.0 )
AL_20140430_204902104_000003_12165801    50 stars filter C [70448402.2s - 70448492.2s] expo= 90s elev=26.6deg humid= 69% sunelev=-20.8deg (moon at  42.0deg phase=0.11 elev= -8.0 )
AL_20140430_205043544_000003_12165801    47 stars filter C [70448503.6s - 70448593.6s] expo= 90s elev=26.3deg humid= 69% sunelev=-21.0deg (moon at  42.0deg phase=0.11 elev= -8.0 )
AL_20140430_205233826_000003_12165901    45 stars filter C [70448613.9s - 70448703.9s] expo= 90s elev=26.0deg humid= 69% sunelev=-21.2deg (moon at  42.0deg phase=0.11 elev= -9.0 )
AL_20140430_205415044_000003_12165901    44 stars filter C [70448715.1s - 70448805.1s] expo= 90s elev=25.7deg humid= 69% sunelev=-21.4deg (moon at  42.0deg phase=0.11 elev= -9.0 )
AL_20140430_205555794_000003_12165901    47 stars filter C [70448815.8s - 70448905.8s] expo= 90s elev=25.4deg humid= 69% sunelev=-21.6deg (moon at  42.0deg phase=0.11 elev= -9.0 )
AL_20140430_205748388_000003_12166001    42 stars filter C [70448928.4s - 70449018.4s] expo= 90s elev=25.0deg humid= 70% sunelev=-21.8deg (moon at  42.0deg phase=0.11 elev= -9.0 )
AL_20140430_205929314_000003_12166001    49 stars filter C [70449029.4s - 70449119.4s] expo= 90s elev=24.7deg humid= 70% sunelev=-22.0deg (moon at  42.0deg phase=0.11 elev=-10.0 )
AL_20140430_210110079_000003_12166001    45 stars filter C [70449130.1s - 70449220.1s] expo= 90s elev=24.4deg humid= 72% sunelev=-22.2deg (moon at  42.0deg phase=0.11 elev=-10.0 )
AL_20140430_210536486_000003_12166101    50 stars filter C [70449306.5s - 70449486.5s] expo=180s elev=23.8deg humid= 72% sunelev=-22.5deg (moon at  42.0deg phase=0.11 elev=-10.0 )
AL_20140430_210847470_000003_12166101    52 stars filter C [70449497.5s - 70449677.5s] expo=180s elev=23.2deg humid= 72% sunelev=-22.9deg (moon at  42.0deg phase=0.11 elev=-11.0 )
AL_20140430_211158630_000003_12166101    39 stars filter R [70449688.7s - 70449868.7s] expo=180s elev=22.6deg humid= 74% sunelev=-23.2deg (moon at  42.0deg phase=0.11 elev=-11.0 )
AL_20140430_211520536_000003_12166201    49 stars filter C [70449890.6s - 70450070.6s] expo=180s elev=22.0deg humid= 76% sunelev=-23.6deg (moon at  42.0deg phase=0.11 elev=-12.0 )
AL_20140430_211831302_000003_12166201    51 stars filter C [70450081.4s - 70450261.4s] expo=180s elev=21.5deg humid= 78% sunelev=-23.9deg (moon at  42.0deg phase=0.11 elev=-12.0 )
AL_20140430_212142523_000003_12166201    42 stars filter R [70450272.6s - 70450452.6s] expo=180s elev=20.9deg humid= 79% sunelev=-24.3deg (moon at  42.0deg phase=0.11 elev=-13.0 )
AL_20140430_212503929_000003_12166301    49 stars filter C [70450474.0s - 70450654.0s] expo=180s elev=20.3deg humid= 80% sunelev=-24.6deg (moon at  42.0deg phase=0.11 elev=-13.0 )
AL_20140430_212814679_000003_12166301    41 stars filter C [70450664.7s - 70450844.7s] expo=180s elev=19.8deg humid= 79% sunelev=-24.9deg (moon at  42.0deg phase=0.11 elev=-13.0 )
AL_20140430_213125889_000003_12166301    43 stars filter R [70450855.9s - 70451035.9s] expo=180s elev=19.2deg humid= 79% sunelev=-25.2deg (moon at  42.0deg phase=0.11 elev=-14.0 )
AL_20140430_213447577_000003_12166401    45 stars filter C [70451057.6s - 70451237.6s] expo=180s elev=18.6deg humid= 80% sunelev=-25.6deg (moon at  42.0deg phase=0.11 elev=-14.0 )
AL_20140430_213758498_000003_12166401    51 stars filter C [70451248.6s - 70451428.6s] expo=180s elev=18.1deg humid= 81% sunelev=-25.9deg (moon at  42.0deg phase=0.11 elev=-15.0 )
AL_20140430_214109316_000003_12166401    38 stars filter R [70451439.3s - 70451619.3s] expo=180s elev=17.5deg humid= 80% sunelev=-26.1deg (moon at  42.0deg phase=0.11 elev=-15.0 )
AL_20140430_214432097_000003_12166501    40 stars filter C [70451642.1s - 70451822.1s] expo=180s elev=16.9deg humid= 80% sunelev=-26.4deg (moon at  42.0deg phase=0.11 elev=-15.0 )
AL_20140430_214742613_000003_12166501    49 stars filter C [70451832.7s - 70452012.7s] expo=180s elev=16.4deg humid= 81% sunelev=-26.7deg (moon at  42.0deg phase=0.11 elev=-16.0 )
AL_20140430_215053146_000003_12166501    36 stars filter R [70452023.2s - 70452203.2s] expo=180s elev=15.8deg humid= 78% sunelev=-27.0deg (moon at  42.0deg phase=0.11 elev=-16.0 )
AL_20140430_215415490_000003_12166601    49 stars filter C [70452225.5s - 70452405.5s] expo=180s elev=15.2deg humid= 74% sunelev=-27.3deg (moon at  42.0deg phase=0.11 elev=-17.0 )
AL_20140430_215726256_000003_12166601    49 stars filter C [70452416.3s - 70452596.3s] expo=180s elev=14.7deg humid= 74% sunelev=-27.5deg (moon at  42.0deg phase=0.11 elev=-17.0 )
AL_20140430_220036766_000003_12166601    34 stars filter R [70452606.8s - 70452786.8s] expo=180s elev=14.1deg humid= 70% sunelev=-27.8deg (moon at  42.0deg phase=0.11 elev=-17.0 )
AL_20140430_220359782_000003_12166701    45 stars filter C [70452809.8s - 70452989.8s] expo=180s elev=13.6deg humid= 70% sunelev=-28.0deg (moon at  42.0deg phase=0.11 elev=-18.0 )
AL_20140430_220711032_000003_12166701    44 stars filter C [70453001.0s - 70453181.0s] expo=180s elev=13.0deg humid= 69% sunelev=-28.2deg (moon at  42.0deg phase=0.11 elev=-18.0 )
AL_20140430_221022173_000003_12166701    39 stars filter R [70453192.3s - 70453372.3s] expo=180s elev=12.5deg humid= 69% sunelev=-28.5deg (moon at  42.0deg phase=0.11 elev=-19.0 )
AL_20140430_221343422_000003_12166801    48 stars filter C [70453393.4s - 70453573.4s] expo=180s elev=11.9deg humid= 69% sunelev=-28.7deg (moon at  42.0deg phase=0.11 elev=-19.0 )
AL_20140430_221654375_000003_12166801    39 stars filter C [70453584.4s - 70453764.4s] expo=180s elev=11.4deg humid= 68% sunelev=-28.9deg (moon at  42.0deg phase=0.11 elev=-19.0 )
AL_20140430_222005563_000003_12166801    35 stars filter R [70453775.6s - 70453955.6s] expo=180s elev=10.9deg humid= 67% sunelev=-29.1deg (moon at  42.0deg phase=0.11 elev=-20.0 )
AL_20140430_222327736_000003_12166901    41 stars filter C [70453977.7s - 70454157.7s] expo=180s elev=10.3deg humid= 67% sunelev=-29.3deg (moon at  42.0deg phase=0.11 elev=-20.0 )
AL_20140430_222639846_000003_12166901    42 stars filter C [70454169.9s - 70454349.9s] expo=180s elev= 9.8deg humid= 65% sunelev=-29.5deg (moon at  41.0deg phase=0.11 elev=-20.0 )
AL_20140430_222950815_000003_12166901    31 stars filter R [70454360.9s - 70454540.9s] expo=180s elev= 9.2deg humid= 64% sunelev=-29.7deg (moon at  41.0deg phase=0.11 elev=-21.0 )
AL_20140430_223312039_000003_12167001    32 stars filter C [70454562.1s - 70454742.1s] expo=180s elev= 8.7deg humid= 64% sunelev=-29.8deg (moon at  41.0deg phase=0.11 elev=-21.0 )
AL_20140430_223623711_000003_12167001    38 stars filter C [70454753.7s - 70454933.7s] expo=180s elev= 8.2deg humid= 63% sunelev=-30.0deg (moon at  41.0deg phase=0.11 elev=-21.0 )
AL_20140430_223934445_000003_12167001    26 stars filter R [70454944.5s - 70455124.5s] expo=180s elev= 7.6deg humid= 63% sunelev=-30.1deg (moon at  41.0deg phase=0.11 elev=-22.0 )
AL_20140430_224304462_000003_12167101    42 stars filter C [70455154.5s - 70455334.5s] expo=180s elev= 7.1deg humid= 63% sunelev=-30.3deg (moon at  41.0deg phase=0.11 elev=-22.0 )
AL_20140430_224615447_000003_12167101    32 stars filter C [70455345.5s - 70455525.5s] expo=180s elev= 6.6deg humid= 62% sunelev=-30.4deg (moon at  41.0deg phase=0.11 elev=-22.0 )
AL_20140430_224926181_000003_12167101    24 stars filter R [70455536.2s - 70455716.2s] expo=180s elev= 6.1deg humid= 62% sunelev=-30.5deg (moon at  41.0deg phase=0.11 elev=-23.0 )
AL_20140430_225242297_000003_12167201    30 stars filter C [70455732.3s - 70455912.3s] expo=180s elev= 5.5deg humid= 61% sunelev=-30.7deg (moon at  41.0deg phase=0.11 elev=-23.0 )
AL_20140430_225553032_000003_12167201    29 stars filter C [70455923.1s - 70456103.1s] expo=180s elev= 5.0deg humid= 60% sunelev=-30.8deg (moon at  41.0deg phase=0.11 elev=-23.0 )
AL_20140430_225904469_000003_12167201    26 stars filter R [70456114.5s - 70456294.5s] expo=180s elev= 4.5deg humid= 60% sunelev=-30.9deg (moon at  41.0deg phase=0.11 elev=-23.0 )
AL_20140430_230223801_000003_12167301    29 stars filter C [70456313.8s - 70456493.8s] expo=180s elev= 4.0deg humid= 59% sunelev=-31.0deg (moon at  41.0deg phase=0.11 elev=-24.0 )
AL_20140430_230534738_000003_12167301    23 stars filter C [70456504.8s - 70456684.8s] expo=180s elev= 3.5deg humid= 59% sunelev=-31.0deg (moon at  41.0deg phase=0.11 elev=-24.0 )
AL_20140430_230845988_000003_12167301    21 stars filter R [70456696.0s - 70456876.0s] expo=180s elev= 3.1deg humid= 59% sunelev=-31.1deg (moon at  41.0deg phase=0.11 elev=-24.0 )
AL_20140430_231207429_000003_12167401    19 stars filter C [70456897.4s - 70457077.4s] expo=180s elev= 2.6deg humid= 59% sunelev=-31.2deg (moon at  41.0deg phase=0.11 elev=-25.0 )
AL_20140430_231518163_000003_12167401    20 stars filter C [70457088.2s - 70457268.2s] expo=180s elev= 2.1deg humid= 59% sunelev=-31.2deg (moon at  41.0deg phase=0.11 elev=-25.0 )
AL_20140430_231829366_000003_12167401     0 star  filter R [70457279.4s - 70457459.4s] expo=180s elev= 1.6deg humid= 61% sunelev=-31.3deg (moon at  41.0deg phase=0.11 elev=-25.0 )
Informations from GCN notice:
This is not a GRB (a retractation has been edited)
Date of GRB : 2455962.9912571758 2012-02-05T11:47:24.620
Date of notice : 2455962.9915046296 2012-02-05T11:47:46.000
Refined position : no
RA(J2000.0) : 40.1 02h40m24s0
DEC(J2000.0) : 61.22 +61d13m12s00
Error box : x=50049:50159 y=83294:83404 (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=192.255571204 lat=10.32490565
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.144
Assuming Rv=3.1: Av=0.477 Ar=0.385 Ai=0.279
extmap.fit: Extinction map E(B-V) from Schlegel:

Field of View is about 61 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 140430: TAROT Calern observatory optical observations
----------------------------------------------------------------------
Klotz A. (IRAP-CNRS-OMP), Gendre B. (IRAP-CNRS-OMP),
Boer M., Siellez K., Dereli H., Bardho O. (UNS-CNRS-OCA),
Atteia J.L. (IRAP-CNRS-OMP) report:

We imaged the field of GRB 140430 detected by SWIFT
(trigger 513505) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 70447702.2s after the GRB trigger
(70447681.0s after the notice). The elevation of the field decreased from
28 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2012-02-05T11:47:24.864

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+70447702.2s to t0+70447762.2s : R > 15.1

The second image is 30.0s exposure in tracking mode:
t0+70447772.7s to t0+70447802.7s : R > 16.2

We co-added a series of exposures:
t0+70447772.7s to t0+70448076.6s : 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 70447702.2s 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=192.2556 lat=+10.3249
and the galactic extinction in R band is 0.4 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.
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