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TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 2247
SUBJECT: GRB 030329: optical photometry at various french observatories
DATE: 03/05/26 12:02:10 GMT
FROM: Michel Boer at CESR-CNRS <Michel.Boer@cesr.fr>
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A. Klotz and M. Boer (CESR France) report magnitudes of GRB 030329 =
obtained
at TAROT-Calern, at TBL-Pic du Midi and by members of AUDE (Association =
des
Utilisateurs de Detecteurs Electroniques - Electronic Device Users
Association). All images are photometrically calibrated by Alain Klotz =
using
the reference stars given by A. Henden (GCNC 2023).
=20
Red filtered measurements :
DATE Observers Diam(mm) filter int(s) R +/-
observatory day-GRB
2003-04-12T20:21:10 SD 600 R 5400 19.30 0.18 =
Lantelme
14.3628
2003-04-21T00:20:37 EB&al. 600 R 3000 20.25 0.75 Pic Du =
Midi
22.5291
2003-04-21T22:32:00 OM&YM&PM 820 R 600 19.9 0.4 Belesta
23.4537
2003-05-04T21:32:41 CC&SD 600 R 2760 22.74 0.37 =
Lantelme
36.4124
Infrared filtered measurements (afteglow not detected) :
DATE Authors Diam(mm) filter int(s) mag +/- =
observatory
day-GRB
2003-04-17T23:30:00 AK&CB 2000 K 3060 >18.2 Pic du =
Midi
19.4939
2003-04-18T01:26:00 AK&CB 2000 J 3960 >18.6 Pic du =
Midi
19.5745
Unfiltered measurements converted to the R band :
DATE Authors Diam(mm) filter int(s) R +/- =
observatory
day-GRB
2003-04-01T00:25:00 AK 200 C 360 16.72 0.45 =
Guitalens
2.5321
2003-04-04T20:30:00 TAROT 250 C 600 18.55 0.36 Calern
6.3689
2003-04-06T21:48:21 ML 318 C 2550 18.58 0.33 Dax
8.4234
2003-04-07T22:05:00 TM&BC 600 C 400 18.68 0.23 Pic du =
Midi
9.4349
2003-04-08T20:30:00 TAROT 250 C 600 18.81 0.44 Calern
10.3690
2003-04-21T22:05:00 OM&YM&PM 820 C 900 19.93 0.15 Belesta
23.4315
Observers
AK =3D Alain Klotz
ML =3D Mathieu Lahitte=20
TM&BC =3D Thierry Midavaine & Bernard Christophe
SD =3D Serge Deconhiout
AK&CB =3D Alain Klotz & Coralie Berteloite
OM&YM&PM =3D Olivier Maury, Yves Megret, Patrick Martinez
EB&al. =3D Eric Barbotin, Cathy Dupeyre, Alain Laffont, Audrey =
Cazenave
CC&SD =3D Cyril Cavadore & Serge Deconhiout
Complementary data (images) :
http://www.cesr.fr/~klotz/grb030329/results.html
This report may be cited.
=20
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<p class=3DMsoNormal><font size=3D3 face=3DCourier><span =
style=3D'font-size:12.0pt;
font-family:Courier'>A. Klotz and M. Boer (CESR France) report =
magnitudes of
GRB 030329 obtained<br>
at TAROT-Calern, at TBL-Pic du Midi and by members of AUDE (Association =
des
Utilisateurs de Detecteurs Electroniques – Electronic Device Users
Association). All images are photometrically calibrated by Alain Klotz =
using the
reference stars given by A. Henden (GCNC 2023).<br>
&=
nbsp; &n=
bsp; &nb=
sp;
<br>
Red filtered measurements :<br>
DATE &nb=
sp;
Observers Diam(mm) filter int(s) R
+/- observatory day-GRB<br>
2003-04-12T20:21:10
SD 600
R 5400 19.30 0.18 =
Lantelme
14.3628<br>
2003-04-21T00:20:37 EB&al. =
600
R 3000 20.25 0.75 =
Pic Du
Midi 22.5291<br>
2003-04-21T22:32:00 OM&YM&PM 820
R 600 19.9
0.4 Belesta 23.4537<br>
2003-05-04T21:32:41 CC&SD
600 R 2760 22.74
0.37 Lantelme 36.4124<br>
<br>
Infrared filtered measurements (afteglow not detected) :<br>
DATE &nb=
sp;
Authors Diam(mm) filter int(s) mag =
+/- observatory
day-GRB<br>
2003-04-17T23:30:00 AK&CB =
2000
K 3060
>18.2 Pic du =
Midi
19.4939<br>
2003-04-18T01:26:00 AK&CB =
2000
J 3960
>18.6 Pic du =
Midi
19.5745<br>
<br>
Unfiltered measurements converted to the R band :<br>
DATE &nb=
sp;
Authors Diam(mm) filter int(s) R
+/- observatory day-GRB<br>
2003-04-01T00:25:00
AK 200
C 360 16.72 =
0.45 Guitalens
2.5321<br>
2003-04-04T20:30:00 TAROT =
250
C 600 18.55 =
0.36
Calern 6.3689<br>
2003-04-06T21:48:21
ML 318
C 2550 18.58 0.33
Dax 8.4234<br>
2003-04-07T22:05:00 TM&BC
600 C 400 18.68
0.23 Pic du Midi 9.4349<br>
2003-04-08T20:30:00 TAROT =
250
C 600 18.81 =
0.44
Calern 10.3690<br>
2003-04-21T22:05:00 OM&YM&PM 820
C 900 19.93 =
0.15 Belesta
23.4315<br>
<br>
Observers<br>
AK =3D Alain Klotz<br>
ML =3D Mathieu Lahitte <br>
TM&BC =3D Thierry Midavaine & Bernard =
Christophe<br>
SD =3D Serge Deconhiout<br>
AK&CB =3D Alain Klotz & Coralie =
Berteloite<br>
OM&YM&PM =3D Olivier Maury, Yves Megret, Patrick =
Martinez<br>
EB&al. =3D Eric Barbotin, Cathy Dupeyre, Alain =
Laffont,
Audrey Cazenave<br>
CC&SD =3D Cyril Cavadore & Serge =
Deconhiout<br>
<br>
Complementary data (images) : =
http://www.cesr.fr/~klotz/grb030329/results.html<br>
<br>
This report may be cited.</span></font></p>
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