[AAVSO-HEN] GRB 041006 R observations in Loiano

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
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TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2804
SUBJECT: GRB 041006 R observations in Loiano
DATE:    04/10/15 11:32:26 GMT
FROM:    Corrado Bartolini at Universita di Bologna  <bartolini at bo.astro.it>

G. Greco, C. Bartolini, A. Guarnieri, A. Piccioni (Universita' di Bologna)
P. Ferrero (IASF/CNR, Bologna; Osservatorio e Universita' di Teramo),
G. Pizzichini (IASF/CNR, Bologna), E. Mazzotti Epifani (INAF, Oss. di
Capodimonte - Napoli) and R. Gualandi (INAF, Bologna Observatory) report:


On October 7, 2004 in clear sky conditions (seeing 2") we obtained
two R-band images (1200 sec X 2) of the OT of GRB 041006 (=HETE 3570)
reported by Da Costa, Noel and Price (GCN 2765) with the 152 cm telescope
in Loiano.We co-added the two exposures and used the following stars
in Henden's photometric calibration (GCN 2801):  

               RA                 Decl.                                   
             13.6373            1.221278
             13.708797          1.202692
             13.783485          1.302545 

We find the following magnitude for the OT:
R = 22.22 +/- 0.13 at UT 22:40 (mean value). 

Our images are available in a public directory from where it is possible
to retrieve them by sftp using: 
hostname: ermione.bo.astro.it
username: publicGRB
password: GRB_bo 
directory: GRB041006