GRB100219_151739_SWIFT at TAROT Calern observatory

TAROT Calern observatory log of images

AL_20100220_000145494_336930_79666200     8 stars filter V [31372.9s - 31552.9s] expo=180s elev=33.6deg humid= 77% sunelev=-57.2deg (moon at 124.0deg phase=0.36 elev=-10.0 )
AL_20100220_000505057_336930_79666200     9 stars filter R [31572.5s - 31752.5s] expo=180s elev=33.6deg humid= 78% sunelev=-57.1deg (moon at 124.0deg phase=0.36 elev=-11.0 )
AL_20100220_000823901_336930_79666200     9 stars filter I [31770.0s - 31950.0s] expo=180s elev=33.5deg humid= 78% sunelev=-57.0deg (moon at 124.0deg phase=0.36 elev=-11.0 )
AL_20100220_011220196_336931_79666300     2 stars filter V [35605.8s - 35785.8s] expo=180s elev=30.8deg humid= 71% sunelev=-52.5deg (moon at 123.0deg phase=0.36 elev=-19.0 )
AL_20100220_011535915_336931_79666300     2 stars filter R [35803.3s - 35983.3s] expo=180s elev=30.5deg humid= 73% sunelev=-52.2deg (moon at 123.0deg phase=0.36 elev=-19.0 )
AL_20100220_011854993_336931_79666300    10 stars filter I [36000.9s - 36180.9s] expo=180s elev=30.3deg humid= 74% sunelev=-51.8deg (moon at 123.0deg phase=0.37 elev=-19.0 )
AL_20100220_020336169_336932_79666400    14 stars filter V [38681.7s - 38861.7s] expo=180s elev=26.2deg humid= 81% sunelev=-46.1deg (moon at 122.0deg phase=0.37 elev=-23.0 )
AL_20100220_020654903_336932_79666400    11 stars filter R [38881.2s - 39061.2s] expo=180s elev=25.8deg humid= 82% sunelev=-45.6deg (moon at 122.0deg phase=0.37 elev=-24.0 )
AL_20100220_021014794_336932_79666400     4 stars filter I [39080.8s - 39260.8s] expo=180s elev=25.4deg humid= 80% sunelev=-45.1deg (moon at 122.0deg phase=0.37 elev=-24.0 )
AL_20100220_044141170_336934_79666600     4 stars filter V [48167.3s - 48347.3s] expo=180s elev= 3.6deg humid= 64% sunelev=-19.5deg (moon at 121.0deg phase=0.38 elev=-26.0 )
AL_20100220_044459420_336934_79666600     5 stars filter R [48366.9s - 48546.9s] expo=180s elev= 3.1deg humid= 65% sunelev=-18.9deg (moon at 121.0deg phase=0.38 elev=-26.0 )
AL_20100220_044818092_336934_79666600     6 stars filter I [48564.4s - 48744.4s] expo=180s elev= 2.6deg humid= 67% sunelev=-18.3deg (moon at 121.0deg phase=0.38 elev=-26.0 )
AL_20100220_184156788_336946_79667800     0 star  filter V [98582.3s - 98762.3s] expo=180s elev= 1.0deg humid= 62% sunelev=-17.3deg (moon at 114.0deg phase=0.41 elev=+52.0 )
AL_20100220_184513537_336946_79667800     0 star  filter R [98779.8s - 98959.8s] expo=180s elev= 1.5deg humid= 59% sunelev=-17.9deg (moon at 114.0deg phase=0.41 elev=+52.0 )
AL_20100220_184832209_336946_79667800     0 star  filter I [98979.4s - 99159.4s] expo=180s elev= 2.0deg humid= 60% sunelev=-18.5deg (moon at 114.0deg phase=0.41 elev=+51.0 )
AL_20100220_195143621_336947_79667900     6 stars filter V [102770.8s - 102950.8s] expo=180s elev=12.2deg humid= 55% sunelev=-29.7deg (moon at 114.0deg phase=0.42 elev=+41.0 )
AL_20100220_195500409_336947_79667900     6 stars filter R [102966.3s - 103146.3s] expo=180s elev=12.7deg humid= 55% sunelev=-30.3deg (moon at 114.0deg phase=0.42 elev=+40.0 )
AL_20100220_195816471_336947_79667900     9 stars filter I [103161.8s - 103341.8s] expo=180s elev=13.2deg humid= 57% sunelev=-30.9deg (moon at 114.0deg phase=0.42 elev=+40.0 )
AL_20100220_210149599_336948_79668000     9 stars filter V [106975.4s - 107155.4s] expo=180s elev=22.1deg humid= 50% sunelev=-41.4deg (moon at 113.0deg phase=0.42 elev=+28.0 )
AL_20100220_210507522_336948_79668000    10 stars filter R [107174.9s - 107354.9s] expo=180s elev=22.5deg humid= 53% sunelev=-41.9deg (moon at 113.0deg phase=0.42 elev=+28.0 )
AL_20100220_210826678_336948_79668000    12 stars filter I [107372.5s - 107552.5s] expo=180s elev=22.9deg humid= 53% sunelev=-42.4deg (moon at 113.0deg phase=0.42 elev=+27.0 )
AL_20100220_221147654_336949_79668100    14 stars filter V [111173.9s - 111353.9s] expo=180s elev=29.5deg humid= 52% sunelev=-51.1deg (moon at 113.0deg phase=0.42 elev=+16.0 )
AL_20100220_221506263_336949_79668100    14 stars filter R [111373.5s - 111553.5s] expo=180s elev=29.8deg humid= 49% sunelev=-51.4deg (moon at 113.0deg phase=0.42 elev=+16.0 )
AL_20100220_221823560_336949_79668100    14 stars filter I [111569.0s - 111749.0s] expo=180s elev=30.0deg humid= 48% sunelev=-51.8deg (moon at 113.0deg phase=0.42 elev=+15.0 )
AL_20100220_232143209_336950_79668200    14 stars filter V [115370.5s - 115550.5s] expo=180s elev=33.3deg humid= 43% sunelev=-56.5deg (moon at 112.0deg phase=0.42 elev= +5.0 )
AL_20100220_232459915_336950_79668200    14 stars filter R [115566.0s - 115746.0s] expo=180s elev=33.4deg humid= 47% sunelev=-56.6deg (moon at 112.0deg phase=0.42 elev= +4.0 )
AL_20100220_232819103_336950_79668200    15 stars filter I [115765.8s - 115945.8s] expo=180s elev=33.5deg humid= 46% sunelev=-56.7deg (moon at 112.0deg phase=0.42 elev= +4.0 )
AL_20100221_002918542_336951_79668300    14 stars filter V [119426.0s - 119606.0s] expo=180s elev=32.9deg humid= 41% sunelev=-55.7deg (moon at 111.0deg phase=0.43 elev= -4.0 )
AL_20100221_003237354_336951_79668300    15 stars filter R [119623.5s - 119803.5s] expo=180s elev=32.8deg humid= 40% sunelev=-55.6deg (moon at 111.0deg phase=0.43 elev= -5.0 )
AL_20100221_003553609_336951_79668300    14 stars filter I [119821.0s - 120001.0s] expo=180s elev=32.6deg humid= 42% sunelev=-55.3deg (moon at 111.0deg phase=0.43 elev= -5.0 )
AL_20100221_024927963_336953_79668500    13 stars filter V [127835.2s - 128015.2s] expo=180s elev=20.1deg humid= 54% sunelev=-38.7deg (moon at 110.0deg phase=0.44 elev=-20.0 )
AL_20100221_025244635_336953_79668500    14 stars filter R [128030.7s - 128210.7s] expo=180s elev=19.7deg humid= 54% sunelev=-38.2deg (moon at 110.0deg phase=0.44 elev=-20.0 )
AL_20100221_025602803_336953_79668500    12 stars filter I [128230.2s - 128410.2s] expo=180s elev=19.2deg humid= 54% sunelev=-37.7deg (moon at 110.0deg phase=0.44 elev=-20.0 )
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=254.535242 lat=35.407362
NASA/IPAC-Extragalactic-Database tool for calculate an extinction

Extinction from Schlegel et al. (1998, ApJ 500, 525): E(B-V)=0.076
Assuming Rv=3.1: Av=0.252 Ar=0.203 Ai=0.148 Extinction map E(B-V) from Schlegel:

Field of View is about 85 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 100219: 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 100219 detected by SWIFT
(trigger 412982) with the TAROT robotic telescope (D=25cm)
located at the Calern observatory, France.

The observations started 31372.9s after the GRB trigger
(XXXs after the notice). The elevation of the field decreased from
33 degrees above horizon and weather conditions
were XXX.

---- NO
The date of trigger : t0 = 2010-02-19T15:15:46.450

The first image is trailed with a duration of 180.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+31372.9s to t0+31552.9s : R > 15.1

The second image is 180.0s exposure in tracking mode:
t0+31572.5s to t0+31752.5s : R > 16.2

We co-added a series of exposures:
t0+31572.5s to t0+38861.7s : 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 31372.9s 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=254.5352 lat=+35.4074
and the galactic extinction in R band is 0.2 magnitudes
estimated from D. Schlegel et al. 1998ApJ...500..525S.

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