GRB140703_603243_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20140703_004613215_000003_17669101    37 stars filter C [75905833.1s - 75905923.1s] expo= 90s elev=39.2deg humid= 80% sunelev=-21.4deg (moon at 125.0deg phase=0.35 elev=-29.0 )
AL_20140703_004753967_000003_17669101    36 stars filter C [75905933.8s - 75906023.8s] expo= 90s elev=39.4deg humid= 80% sunelev=-21.3deg (moon at 125.0deg phase=0.35 elev=-29.0 )
AL_20140703_004935123_000003_17669101    37 stars filter C [75906035.0s - 75906125.0s] expo= 90s elev=39.7deg humid= 80% sunelev=-21.2deg (moon at 125.0deg phase=0.35 elev=-29.0 )
AL_20140703_005123795_000003_17669201    44 stars filter C [75906143.7s - 75906233.7s] expo= 90s elev=40.0deg humid= 80% sunelev=-21.1deg (moon at 125.0deg phase=0.35 elev=-29.0 )
AL_20140703_005304545_000003_17669201    35 stars filter C [75906244.4s - 75906334.4s] expo= 90s elev=40.2deg humid= 78% sunelev=-21.0deg (moon at 125.0deg phase=0.35 elev=-30.0 )
AL_20140703_005445233_000003_17669201    31 stars filter C [75906345.2s - 75906435.2s] expo= 90s elev=40.5deg humid= 77% sunelev=-20.9deg (moon at 125.0deg phase=0.35 elev=-30.0 )
AL_20140703_005638300_000003_17669301    35 stars filter C [75906458.2s - 75906548.2s] expo= 90s elev=40.8deg humid= 76% sunelev=-20.8deg (moon at 125.0deg phase=0.35 elev=-30.0 )
AL_20140703_005819268_000003_17669301    34 stars filter C [75906559.2s - 75906649.2s] expo= 90s elev=41.1deg humid= 76% sunelev=-20.7deg (moon at 125.0deg phase=0.35 elev=-30.0 )
AL_20140703_010000221_000003_17669301    35 stars filter C [75906660.2s - 75906750.2s] expo= 90s elev=41.4deg humid= 77% sunelev=-20.6deg (moon at 125.0deg phase=0.35 elev=-31.0 )
AL_20140703_010152831_000003_17669401    34 stars filter C [75906772.8s - 75906862.8s] expo= 90s elev=41.7deg humid= 77% sunelev=-20.5deg (moon at 125.0deg phase=0.35 elev=-31.0 )
AL_20140703_010334050_000003_17669401    35 stars filter C [75906874.0s - 75906964.0s] expo= 90s elev=41.9deg humid= 77% sunelev=-20.4deg (moon at 125.0deg phase=0.35 elev=-31.0 )
AL_20140703_010516440_000003_17669401    36 stars filter C [75906976.4s - 75907066.4s] expo= 90s elev=42.2deg humid= 77% sunelev=-20.3deg (moon at 125.0deg phase=0.35 elev=-31.0 )
AL_20140703_010939571_000003_17669501    47 stars filter C [75907149.5s - 75907329.5s] expo=180s elev=42.8deg humid= 77% sunelev=-20.1deg (moon at 125.0deg phase=0.35 elev=-32.0 )
AL_20140703_011250571_000003_17669501    38 stars filter C [75907340.5s - 75907520.5s] expo=180s elev=43.3deg humid= 77% sunelev=-19.8deg (moon at 125.0deg phase=0.35 elev=-32.0 )
AL_20140703_011601321_000003_17669501    37 stars filter R [75907531.2s - 75907711.2s] expo=180s elev=43.8deg humid= 76% sunelev=-19.6deg (moon at 125.0deg phase=0.35 elev=-33.0 )
AL_20140703_011923168_000003_17669601    38 stars filter C [75907733.1s - 75907913.1s] expo=180s elev=44.4deg humid= 75% sunelev=-19.4deg (moon at 125.0deg phase=0.35 elev=-33.0 )
AL_20140703_012233903_000003_17669601    42 stars filter C [75907923.9s - 75908103.9s] expo=180s elev=44.9deg humid= 74% sunelev=-19.1deg (moon at 125.0deg phase=0.35 elev=-33.0 )
AL_20140703_012545371_000003_17669601    31 stars filter R [75908115.3s - 75908295.3s] expo=180s elev=45.4deg humid= 74% sunelev=-18.9deg (moon at 125.0deg phase=0.35 elev=-34.0 )
AL_20140703_012907358_000003_17669701    37 stars filter C [75908317.2s - 75908497.2s] expo=180s elev=46.0deg humid= 73% sunelev=-18.6deg (moon at 125.0deg phase=0.35 elev=-34.0 )
AL_20140703_013219701_000003_17669701    40 stars filter C [75908509.6s - 75908689.6s] expo=180s elev=46.5deg humid= 72% sunelev=-18.3deg (moon at 125.0deg phase=0.35 elev=-35.0 )
AL_20140703_013530498_000003_17669701    35 stars filter R [75908700.3s - 75908880.3s] expo=180s elev=47.0deg humid= 70% sunelev=-18.1deg (moon at 125.0deg phase=0.35 elev=-35.0 )
AL_20140703_013852239_000003_17669801    45 stars filter C [75908902.2s - 75909082.2s] expo=180s elev=47.6deg humid= 68% sunelev=-17.8deg (moon at 125.0deg phase=0.35 elev=-35.0 )
AL_20140703_014203692_000003_17669801    50 stars filter C [75909093.6s - 75909273.6s] expo=180s elev=48.1deg humid= 67% sunelev=-17.5deg (moon at 125.0deg phase=0.35 elev=-36.0 )
AL_20140703_014515598_000003_17669801    38 stars filter R [75909285.5s - 75909465.5s] expo=180s elev=48.6deg humid= 67% sunelev=-17.2deg (moon at 125.0deg phase=0.35 elev=-36.0 )
AL_20140703_014835477_000003_17669901    46 stars filter C [75909485.3s - 75909665.3s] expo=180s elev=49.2deg humid= 67% sunelev=-16.9deg (moon at 125.0deg phase=0.35 elev=-36.0 )
AL_20140703_015147149_000003_17669901    42 stars filter C [75909677.0s - 75909857.0s] expo=180s elev=49.7deg humid= 66% sunelev=-16.6deg (moon at 125.0deg phase=0.35 elev=-37.0 )
AL_20140703_015458555_000003_17669901    40 stars filter R [75909868.5s - 75910048.5s] expo=180s elev=50.2deg humid= 65% sunelev=-16.3deg (moon at 125.0deg phase=0.35 elev=-37.0 )
AL_20140703_015820636_000003_17670001    46 stars filter C [75910070.6s - 75910250.6s] expo=180s elev=50.8deg humid= 65% sunelev=-16.0deg (moon at 125.0deg phase=0.35 elev=-37.0 )
AL_20140703_020131621_000003_17670001    46 stars filter C [75910261.6s - 75910441.6s] expo=180s elev=51.3deg humid= 64% sunelev=-15.7deg (moon at 125.0deg phase=0.35 elev=-38.0 )
AL_20140703_020442621_000003_17670001    39 stars filter R [75910452.5s - 75910632.5s] expo=180s elev=51.9deg humid= 64% sunelev=-15.3deg (moon at 125.0deg phase=0.35 elev=-38.0 )
AL_20140703_020812735_000003_17670101    39 stars filter C [75910662.8s - 75910842.8s] expo=180s elev=52.5deg humid= 65% sunelev=-15.0deg (moon at 125.0deg phase=0.35 elev=-38.0 )
AL_20140703_021123829_000003_17670101    47 stars filter C [75910853.8s - 75911033.8s] expo=180s elev=53.0deg humid= 65% sunelev=-14.6deg (moon at 125.0deg phase=0.35 elev=-39.0 )
AL_20140703_021435735_000003_17670101    38 stars filter R [75911045.7s - 75911225.7s] expo=180s elev=53.5deg humid= 69% sunelev=-14.3deg (moon at 125.0deg phase=0.35 elev=-39.0 )
AL_20140703_021752314_000003_17670201    39 stars filter C [75911242.2s - 75911422.2s] expo=180s elev=54.1deg humid= 75% sunelev=-13.9deg (moon at 125.0deg phase=0.35 elev=-39.0 )
AL_20140703_022103253_000003_17670201    41 stars filter C [75911433.2s - 75911613.2s] expo=180s elev=54.6deg humid= 78% sunelev=-13.6deg (moon at 125.0deg phase=0.35 elev=-39.0 )
AL_20140703_022414440_000003_17670201    33 stars filter R [75911624.4s - 75911804.4s] expo=180s elev=55.2deg humid= 79% sunelev=-13.2deg (moon at 125.0deg phase=0.35 elev=-40.0 )
AL_20140703_022740971_000003_17670301    38 stars filter C [75911830.9s - 75912010.9s] expo=180s elev=55.8deg humid= 78% sunelev=-12.8deg (moon at 125.0deg phase=0.35 elev=-40.0 )
AL_20140703_023052179_000003_17670301    35 stars filter C [75912022.1s - 75912202.1s] expo=180s elev=56.3deg humid= 77% sunelev=-12.5deg (moon at 125.0deg phase=0.35 elev=-40.0 )
AL_20140703_023403414_000003_17670301    35 stars filter R [75912213.4s - 75912393.4s] expo=180s elev=56.8deg humid= 75% sunelev=-12.1deg (moon at 125.0deg phase=0.35 elev=-41.0 )
AL_20140703_023719507_000003_17670401    31 stars filter C [75912409.4s - 75912589.4s] expo=180s elev=57.4deg humid= 74% sunelev=-11.7deg (moon at 125.0deg phase=0.35 elev=-41.0 )
AL_20140703_024030684_000003_17670401    28 stars filter C [75912600.7s - 75912780.7s] expo=180s elev=57.9deg humid= 73% sunelev=-11.3deg (moon at 125.0deg phase=0.35 elev=-41.0 )
AL_20140703_024342653_000003_17670401    26 stars filter R [75912792.6s - 75912972.6s] expo=180s elev=58.5deg humid= 74% sunelev=-10.9deg (moon at 125.0deg phase=0.35 elev=-41.0 )
AL_20140703_024659871_000003_17670501     0 star  filter C [75912989.8s - 75913169.8s] expo=180s elev=59.1deg humid= 76% sunelev=-10.5deg (moon at 125.0deg phase=0.35 elev=-41.0 )
AL_20140703_025010844_000003_17670501     0 star  filter C [75913180.8s - 75913360.8s] expo=180s elev=59.6deg humid= 78% sunelev=-10.1deg (moon at 125.0deg phase=0.35 elev=-42.0 )
AL_20140703_025321625_000003_17670501    13 stars filter R [75913371.5s - 75913551.5s] expo=180s elev=60.2deg humid= 80% sunelev=-9.7deg (moon at 125.0deg phase=0.35 elev=-42.0 )
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=-14711:-14601 y=21487:21596 (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=123.028604706 lat=-17.7770513883
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.082
Assuming Rv=3.1: Av=0.273 Ar=0.220 Ai=0.160 Extinction map E(B-V) from Schlegel:

Field of View is about 66 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
ROTSE last GRB images

Example of a GCNC email for this burst
GRB 140703: 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 140703 detected by SWIFT
(trigger 513505) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 75905833.1s after the GRB trigger
(75905811.9s after the notice). The elevation of the field increased from
39 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 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+75905833.1s to t0+75905923.1s : R > 15.1

The second image is 90.0s exposure in tracking mode:
t0+75905933.8s to t0+75906023.8s : R > 16.2

We co-added a series of exposures:
t0+75905933.8s to t0+75906548.2s : 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 75905833.1s 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=123.0286 lat=-17.7771
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.