GRB110520_202918_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20110520_203038374_110520_20290     0 star  filter C [   44.9s -   104.9s] expo= 60s elev=52.0deg humid= 63% sunelev=-14.4deg (moon at 139.0deg phase=0.75 elev=-16.0 )
AL_20110520_203123047_110520_20290    12 stars filter C [  119.6s -   149.6s] expo= 30s elev=51.9deg humid= 63% sunelev=-14.5deg (moon at 139.0deg phase=0.75 elev=-16.0 )
AL_20110520_203203092_110520_20290    11 stars filter C [  159.7s -   189.7s] expo= 30s elev=51.8deg humid= 63% sunelev=-14.6deg (moon at 139.0deg phase=0.75 elev=-16.0 )
AL_20110520_203243608_110520_20290    12 stars filter C [  200.2s -   230.2s] expo= 30s elev=51.7deg humid= 64% sunelev=-14.7deg (moon at 139.0deg phase=0.75 elev=-15.0 )
AL_20110520_203323640_110520_20290    12 stars filter C [  240.2s -   270.2s] expo= 30s elev=51.6deg humid= 64% sunelev=-14.8deg (moon at 139.0deg phase=0.75 elev=-15.0 )
AL_20110520_203404390_110520_20290    10 stars filter C [  280.9s -   310.9s] expo= 30s elev=51.5deg humid= 64% sunelev=-14.9deg (moon at 139.0deg phase=0.75 elev=-15.0 )
AL_20110520_220843846_000001_93346401    19 stars filter C [ 5810.4s -  5990.4s] expo=180s elev=39.0deg humid= 67% sunelev=-23.6deg (moon at 139.0deg phase=0.75 elev= +0.0 )
AL_20110520_221154362_000001_93346401    19 stars filter C [ 6000.9s -  6180.9s] expo=180s elev=38.6deg humid= 67% sunelev=-23.8deg (moon at 139.0deg phase=0.75 elev= +0.0 )
AL_20110520_221504628_000001_93346401    16 stars filter R [ 6191.2s -  6371.2s] expo=180s elev=38.2deg humid= 67% sunelev=-23.9deg (moon at 139.0deg phase=0.75 elev= +0.0 )
AL_20110520_221815147_000001_93346401    19 stars filter C [ 6381.7s -  6561.7s] expo=180s elev=37.8deg humid= 66% sunelev=-24.1deg (moon at 139.0deg phase=0.75 elev= +0.0 )
AL_20110520_222124944_000001_93346401    17 stars filter C [ 6571.5s -  6751.5s] expo=180s elev=37.4deg humid= 66% sunelev=-24.3deg (moon at 139.0deg phase=0.75 elev= +1.0 )
AL_20110520_222435459_000001_93346401    15 stars filter R [ 6762.0s -  6942.0s] expo=180s elev=37.0deg humid= 67% sunelev=-24.5deg (moon at 139.0deg phase=0.75 elev= +1.0 )
AL_20110520_222853260_000001_93346501    16 stars filter C [ 7019.8s -  7199.8s] expo=180s elev=36.5deg humid= 66% sunelev=-24.7deg (moon at 139.0deg phase=0.75 elev= +2.0 )
AL_20110520_223203056_000001_93346501    16 stars filter C [ 7209.6s -  7389.6s] expo=180s elev=36.1deg humid= 66% sunelev=-24.9deg (moon at 139.0deg phase=0.75 elev= +2.0 )
AL_20110520_223513791_000001_93346501    14 stars filter R [ 7400.4s -  7580.4s] expo=180s elev=35.7deg humid= 65% sunelev=-25.0deg (moon at 139.0deg phase=0.75 elev= +3.0 )
AL_20110520_223823838_000001_93346501    16 stars filter C [ 7590.4s -  7770.4s] expo=180s elev=35.3deg humid= 64% sunelev=-25.1deg (moon at 139.0deg phase=0.75 elev= +3.0 )
AL_20110520_224134338_000001_93346501    19 stars filter C [ 7780.9s -  7960.9s] expo=180s elev=34.9deg humid= 64% sunelev=-25.3deg (moon at 139.0deg phase=0.75 elev= +4.0 )
AL_20110520_224445074_000001_93346501    13 stars filter R [ 7971.6s -  8151.6s] expo=180s elev=34.5deg humid= 64% sunelev=-25.4deg (moon at 139.0deg phase=0.75 elev= +4.0 )
AL_20110520_224847093_000001_93346601    15 stars filter C [ 8213.7s -  8393.7s] expo=180s elev=34.0deg humid= 64% sunelev=-25.5deg (moon at 139.0deg phase=0.75 elev= +5.0 )
AL_20110520_225157140_000001_93346601    15 stars filter C [ 8403.7s -  8583.7s] expo=180s elev=33.6deg humid= 65% sunelev=-25.6deg (moon at 139.0deg phase=0.75 elev= +5.0 )
AL_20110520_225506937_000001_93346601    13 stars filter R [ 8593.5s -  8773.5s] expo=180s elev=33.3deg humid= 65% sunelev=-25.7deg (moon at 139.0deg phase=0.74 elev= +6.0 )
AL_20110520_225816752_000001_93346601    15 stars filter C [ 8783.3s -  8963.3s] expo=180s elev=32.9deg humid= 65% sunelev=-25.8deg (moon at 139.0deg phase=0.74 elev= +6.0 )
AL_20110520_230126564_000001_93346601    16 stars filter C [ 8973.1s -  9153.1s] expo=180s elev=32.5deg humid= 65% sunelev=-25.9deg (moon at 139.0deg phase=0.74 elev= +7.0 )
AL_20110520_230436610_000001_93346601    12 stars filter R [ 9163.2s -  9343.2s] expo=180s elev=32.1deg humid= 65% sunelev=-26.0deg (moon at 139.0deg phase=0.74 elev= +7.0 )
AL_20110520_230848835_000001_93346701    14 stars filter C [ 9415.4s -  9595.4s] expo=180s elev=31.6deg humid= 64% sunelev=-26.0deg (moon at 139.0deg phase=0.74 elev= +8.0 )
AL_20110520_231158630_000001_93346701    20 stars filter C [ 9605.2s -  9785.2s] expo=180s elev=31.3deg humid= 64% sunelev=-26.1deg (moon at 139.0deg phase=0.74 elev= +8.0 )
AL_20110520_231508913_000001_93346701    11 stars filter R [ 9795.5s -  9975.5s] expo=180s elev=30.9deg humid= 64% sunelev=-26.1deg (moon at 139.0deg phase=0.74 elev= +8.0 )
AL_20110520_231819181_000001_93346701    16 stars filter C [ 9985.7s - 10165.7s] expo=180s elev=30.5deg humid= 63% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev= +9.0 )
AL_20110520_232129696_000001_93346701    13 stars filter C [10176.2s - 10356.2s] expo=180s elev=30.2deg humid= 63% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev= +9.0 )
AL_20110520_232439727_000001_93346701    11 stars filter R [10366.3s - 10546.3s] expo=180s elev=29.8deg humid= 63% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev=+10.0 )
AL_20110520_232850104_000001_93346801    16 stars filter C [10616.7s - 10796.7s] expo=180s elev=29.3deg humid= 63% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev=+10.0 )
AL_20110520_233200370_000001_93346801    14 stars filter C [10806.9s - 10986.9s] expo=180s elev=29.0deg humid= 64% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev=+11.0 )
AL_20110520_233510869_000001_93346801    14 stars filter R [10997.4s - 11177.4s] expo=180s elev=28.6deg humid= 64% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev=+11.0 )
AL_20110520_233821154_000001_93346801    15 stars filter C [11187.7s - 11367.7s] expo=180s elev=28.3deg humid= 64% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev=+11.0 )
AL_20110520_234131655_000001_93346801    15 stars filter C [11378.2s - 11558.2s] expo=180s elev=27.9deg humid= 64% sunelev=-26.2deg (moon at 139.0deg phase=0.74 elev=+12.0 )
AL_20110520_234441701_000001_93346801    13 stars filter R [11568.3s - 11748.3s] expo=180s elev=27.6deg humid= 64% sunelev=-26.1deg (moon at 139.0deg phase=0.74 elev=+12.0 )
AL_20110520_234901345_000001_93346901    15 stars filter C [11827.9s - 12007.9s] expo=180s elev=27.1deg humid= 64% sunelev=-26.1deg (moon at 139.0deg phase=0.74 elev=+13.0 )
AL_20110520_235211158_000001_93346901    14 stars filter C [12017.7s - 12197.7s] expo=180s elev=26.8deg humid= 64% sunelev=-26.0deg (moon at 139.0deg phase=0.74 elev=+13.0 )
AL_20110520_235521188_000001_93346901    13 stars filter R [12207.8s - 12387.8s] expo=180s elev=26.5deg humid= 65% sunelev=-26.0deg (moon at 139.0deg phase=0.74 elev=+13.0 )
AL_20110520_235831942_000001_93346901    16 stars filter C [12398.5s - 12578.5s] expo=180s elev=26.1deg humid= 65% sunelev=-25.9deg (moon at 139.0deg phase=0.74 elev=+14.0 )
AL_20110521_000142677_000001_93346901    13 stars filter C [12589.2s - 12769.2s] expo=180s elev=25.8deg humid= 66% sunelev=-25.8deg (moon at 139.0deg phase=0.74 elev=+14.0 )
AL_20110521_000453412_000001_93346901    11 stars filter R [12780.0s - 12960.0s] expo=180s elev=25.5deg humid= 67% sunelev=-25.7deg (moon at 139.0deg phase=0.74 elev=+14.0 )
AL_20110521_000904007_000001_93347001    14 stars filter C [13030.6s - 13210.6s] expo=180s elev=25.0deg humid= 68% sunelev=-25.6deg (moon at 139.0deg phase=0.74 elev=+15.0 )
AL_20110521_001214038_000001_93347001    14 stars filter C [13220.6s - 13400.6s] expo=180s elev=24.7deg humid= 68% sunelev=-25.5deg (moon at 139.0deg phase=0.74 elev=+15.0 )
AL_20110521_001524554_000001_93347001    13 stars filter R [13411.1s - 13591.1s] expo=180s elev=24.4deg humid= 68% sunelev=-25.4deg (moon at 139.0deg phase=0.74 elev=+16.0 )
AL_20110521_001835291_000001_93347001    12 stars filter C [13601.8s - 13781.8s] expo=180s elev=24.1deg humid= 68% sunelev=-25.3deg (moon at 139.0deg phase=0.74 elev=+16.0 )
AL_20110521_002145105_000001_93347001    12 stars filter C [13791.7s - 13971.7s] expo=180s elev=23.8deg humid= 68% sunelev=-25.1deg (moon at 139.0deg phase=0.74 elev=+16.0 )
AL_20110521_002456072_000001_93347001    10 stars filter R [13982.6s - 14162.6s] expo=180s elev=23.4deg humid= 67% sunelev=-25.0deg (moon at 139.0deg phase=0.74 elev=+17.0 )
AL_20110521_002856686_000001_93347101    12 stars filter C [14223.3s - 14403.3s] expo=180s elev=23.1deg humid= 67% sunelev=-24.8deg (moon at 139.0deg phase=0.74 elev=+17.0 )
AL_20110521_003207436_000001_93347101    14 stars filter C [14414.0s - 14594.0s] expo=180s elev=22.8deg humid= 67% sunelev=-24.6deg (moon at 139.0deg phase=0.74 elev=+17.0 )
AL_20110521_003517936_000001_93347101    12 stars filter R [14604.5s - 14784.5s] expo=180s elev=22.4deg humid= 67% sunelev=-24.5deg (moon at 139.0deg phase=0.74 elev=+18.0 )
AL_20110521_003827753_000001_93347101    12 stars filter C [14794.3s - 14974.3s] expo=180s elev=22.2deg humid= 67% sunelev=-24.3deg (moon at 139.0deg phase=0.74 elev=+18.0 )
AL_20110521_004138018_000001_93347101    13 stars filter C [14984.6s - 15164.6s] expo=180s elev=21.9deg humid= 67% sunelev=-24.1deg (moon at 139.0deg phase=0.74 elev=+18.0 )
AL_20110521_004448300_000001_93347101    10 stars filter R [15174.9s - 15354.9s] expo=180s elev=21.6deg humid= 67% sunelev=-24.0deg (moon at 139.0deg phase=0.74 elev=+18.0 )
AL_20110521_004858661_000001_93347201    12 stars filter C [15425.2s - 15605.2s] expo=180s elev=21.2deg humid= 67% sunelev=-23.7deg (moon at 139.0deg phase=0.74 elev=+19.0 )
AL_20110521_005208475_000001_93347201    13 stars filter C [15615.0s - 15795.0s] expo=180s elev=20.9deg humid= 67% sunelev=-23.5deg (moon at 139.0deg phase=0.74 elev=+19.0 )
AL_20110521_005519208_000001_93347201    11 stars filter R [15805.8s - 15985.8s] expo=180s elev=20.6deg humid= 67% sunelev=-23.3deg (moon at 139.0deg phase=0.74 elev=+19.0 )
AL_20110521_005829024_000001_93347201    11 stars filter C [15995.6s - 16175.6s] expo=180s elev=20.3deg humid= 68% sunelev=-23.1deg (moon at 139.0deg phase=0.74 elev=+20.0 )
AL_20110521_010139759_000001_93347201    11 stars filter C [16186.3s - 16366.3s] expo=180s elev=20.1deg humid= 68% sunelev=-22.8deg (moon at 139.0deg phase=0.74 elev=+20.0 )
AL_20110521_010449806_000001_93347201    11 stars filter R [16376.4s - 16556.4s] expo=180s elev=19.8deg humid= 67% sunelev=-22.6deg (moon at 139.0deg phase=0.74 elev=+20.0 )
AL_20110521_011511356_000001_93347301    12 stars filter C [16997.9s - 17177.9s] expo=180s elev=18.9deg humid= 68% sunelev=-21.8deg (moon at 139.0deg phase=0.74 elev=+21.0 )
AL_20110521_011821408_000001_93347301    10 stars filter R [17188.0s - 17368.0s] expo=180s elev=18.7deg humid= 69% sunelev=-21.6deg (moon at 139.0deg phase=0.74 elev=+21.0 )
AL_20110521_012131454_000001_93347301    10 stars filter V [17378.0s - 17558.0s] expo=180s elev=18.4deg humid= 70% sunelev=-21.3deg (moon at 139.0deg phase=0.74 elev=+21.0 )
AL_20110521_013954522_000001_93347401    10 stars filter C [18481.1s - 18661.1s] expo=180s elev=17.0deg humid= 69% sunelev=-19.6deg (moon at 139.0deg phase=0.74 elev=+23.0 )
AL_20110521_014304788_000001_93347401    10 stars filter R [18671.3s - 18851.3s] expo=180s elev=16.8deg humid= 69% sunelev=-19.3deg (moon at 139.0deg phase=0.74 elev=+23.0 )
AL_20110521_014615075_000001_93347401     8 stars filter V [18861.6s - 19041.6s] expo=180s elev=16.5deg humid= 70% sunelev=-19.0deg (moon at 139.0deg phase=0.74 elev=+23.0 )
AL_20110521_020444233_000001_93347501    10 stars filter C [19970.8s - 20150.8s] expo=180s elev=15.3deg humid= 70% sunelev=-17.0deg (moon at 139.0deg phase=0.74 elev=+24.0 )
AL_20110521_020754734_000001_93347501     8 stars filter R [20161.3s - 20341.3s] expo=180s elev=15.1deg humid= 70% sunelev=-16.7deg (moon at 139.0deg phase=0.74 elev=+24.0 )
AL_20110521_021104547_000001_93347501     7 stars filter V [20351.1s - 20531.1s] expo=180s elev=14.9deg humid= 69% sunelev=-16.3deg (moon at 139.0deg phase=0.74 elev=+24.0 )
AL_20110521_022933401_000001_93347601     7 stars filter C [21460.0s - 21640.0s] expo=180s elev=13.8deg humid= 65% sunelev=-14.1deg (moon at 139.0deg phase=0.74 elev=+24.0 )
AL_20110521_023243433_000001_93347601     8 stars filter R [21650.0s - 21830.0s] expo=180s elev=13.6deg humid= 64% sunelev=-13.7deg (moon at 139.0deg phase=0.74 elev=+24.0 )
AL_20110521_023554404_000001_93347601     6 stars filter V [21841.0s - 22021.0s] expo=180s elev=13.5deg humid= 65% sunelev=-13.3deg (moon at 139.0deg phase=0.74 elev=+24.0 )
AL_20110521_025740148_000001_93347701     5 stars filter R [23146.7s - 23326.7s] expo=180s elev=12.4deg humid= 64% sunelev=-10.5deg (moon at 139.0deg phase=0.74 elev=+25.0 )
AL_20110521_030050898_000001_93347701     4 stars filter V [23337.5s - 23517.5s] expo=180s elev=12.3deg humid= 65% sunelev=-10.0deg (moon at 139.0deg phase=0.74 elev=+25.0 )
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=160.675430 lat=39.586678
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.026
Assuming Rv=3.1: Av=0.085 Ar=0.068 Ai=0.050
extmap.fit: Extinction map E(B-V) from Schlegel:

Field of View is about 91 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 110520: 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 110520 detected by SWIFT
(trigger 453747) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 44.9s 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 = 2011-05-20T20:28:48.575

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+44.9s to t0+104.9s : R > 15.1

The second image is 30.0s exposure in tracking mode:
t0+119.6s to t0+149.6s : R > 16.2

We co-added a series of exposures:
t0+119.6s to t0+5990.4s : 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 44.9s 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=160.6754 lat=+39.5867
and the galactic extinction in R band is 0.1 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

This message may be cited.
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