TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2564 SUBJECT: GRB 040403 Optical Observations DATE: 04/04/05 07:04:21 GMT FROM: Kuntal Mishra at State Obs,Nainital,India Kuntal Mishra on behalf of the GRB team reports: We observed the error circle of INTEGRAL GRB 040403 (Gotz et al., GCN 2560) in R band, with 1.0-m telescope at Nainital (India) on April 03, 2004 starting at 16:44 UT. We found no new source brighter than R = 19.5 when comparing with DSS-2 R-band chart (USNOA2.0 reference). Ms.KUNTAL MISHRA (JRF) email: kuntal@upso.ernet.in STATE OBSERVATORY, : kuntal_mishra@yahoo.com MANORA PEAK, NAINITAL Phone: (91-05942) 235136, 235583 UTTARANCHAL 263 129 Fax : (91-05942) 235126, 235053 INDIA. Gram : Astronomy