We present photometry of the source reported by Moskvitin, Fatkhullin and Valeev (GCN 9709) which was found on a previous survey images made for asteroid astrometry. The object was observed from the Mountain Station of the Konkoly Observatory with a 60/90 cm Schmidt telescope using R filter and a CCD. The exposures were of 300 s. The table contains the time since the Swift GRB detection to the...Full Text

Skynet observed the Skynet/BAT localization of GRB 090726 (Page et al., GCN 9706) with the 14" GORT telescope at Hume Observatory in California beginning 5.9 hours after the the trigger in I. We do not detect the afterglow (Page et al., GCN 9707; Moskvitin, Fatkhullin & Valeev, GCN 9709). Stacking only images that increase the limiting magnitude yields: mean ...Full Text

We observed the field of the Swift GRB 090726 (Page et al., GCN 9706) in R-filter on Jul. 27 between (UT) 18:19:22 - 20:28:58 with Shajn telescope of CrAO. We detect afterglow (Moskvitin et al., GCN 9709) in a stacked image. The photometry against nearby USNO-B1.0 stars is following: T0+ Filter, Exposure, mag., err. (d) (s) 0.8626 R 114x60 23.60 +/-...Full Text

We observed the field of GRB 090726 detected by Swift (trigger #358422; Page et al., GCN 9706) with the 14-inch Goddard Robotic Telescope (GRT) located at the Goddard Geophysical and Astronomical Observatory (http://cddisa.gsfc.nasa.gov/ggao/). 89 set of 30 sec exposures were taken in the R filter starting from July 27 02:31:44 (UT) about 3.75 hours after the trigger and stopped on July 27 03...Full Text

The Swift/UVOT began settled observations of the field of GRB 090726, 3610s after the BAT trigger (Page et al., GCN 9706), and the afterglow first reported by Moskvitin et al., (GCN 9709) is detected in the UVOT white, v, and b filters. The initial magnitudes and upper limits are as follows: Filter T_start(s) Exp(s) Mag white 3610 147 20.62 ± 0.18 white 4179 197...Full Text

Using the data set from T-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 090726 (trigger #358422) (Page, et al., GCN 9706). The BAT ground-calculated position is RA, Dec = 248.681, 72.866 deg which is RA(J2000) = 16h 34m 43.5s Dec(J2000) = +72d 51' 56.5" with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding...Full Text

We present photometry of the source reported by Moskvitin, Fatkhullin and Valeev (GCN 9709). The object was observed from Crni Vrh Observatory with a 60 cm telescope using R filter and a CCD. First exposure started at 2009-07-26 22:44:31 UT. All twenty exposures were of 60 s. The table contains the time since the Swift GRB detection to the middle of exposure in seconds, R magnitude and formal...Full Text

We observed the localization of the Swift GRB 090726 (Page et al., GCN 9706) with the 50 cm telescope in Ondrejov (Czech Republic), starting at 22:45:41 UT, i.e. 194s after the GRB trigger. We clearly detect the afterglow reported by Moskvitin et al. (GCN 9709) in its rising phase on the first image with magnitude ~ 18.3 (same calibration as GCN 9709). This message can be cited. ...Full Text

Following the detection of the GRB 090726 optical transient (Moskvitin et al., GCN 9709) we observed the afterglow with the SAO RAS 6-m telescope in Caucasus using SCORPIO in the spectroscopic mode. The wavelength coverage and resolution were 3700-7800AA and FWHM=10A, respectively. One 10-min long exposure was obtained starting at 00:15 27 July 2009 UT (T-T0 = 1.545 hours after the trigger). A number...Full Text

We have analysed the first five orbits of data collected for GRB 090726, comprising 9.4 ks between 3.6 and 28 ks after the trigger, all in Photon Counting mode. The enhanced XRT position for this burst was given by Evans et al. in GCN 9710. The X-ray light-curve can be modelled with a single power-law with a decay index of alpha = 1.29 +/- 0.12. A spectrum formed from these PC data can be...Full Text

Using 4286 s of XRT Photon Counting mode data and 7 UVOT images for GRB 090726, we find an astrometrically corrected X-ray position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 248.67985, +72.88426 which is equivalent to: RA (J2000): 16h 34m 43.16s Dec (J2000): +72d 53' 03.4" with an uncertainty of 1.5 arcsec (radius, 90% confidence). This...Full Text

We have observed the field of GRB 090618 (Page et al., GCN 9706) with the 1-m telesecope of the SAO RAS in Caucasus. Within the XRT error circle (Page et al., GCN 9707) we detected one object which not present in the DSS. The object's coordinates are: R.A. (J2000.0) = 16:34:43.044 DEC. (J2000.0) = +72:53:04.82 with uncertainty about 0.5 arcsec. Using the USNO A2.0 star 1628-0121951 (R2=14...Full Text

UVOT observed GRB 090726 (Page et al., GCN 9706) with a finding chart exposure of 150 seconds with the White filter starting 3610 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle reported by Page et al. (GCN 9707). The list of sources is typically...Full Text

Following a delay caused by an Earth-limb constraint, the Swift-XRT started observing GRB 090726 about 49 minutes after the trigger, at 23:36:32 UT. The XRT initially centroided on a cosmic ray; however, using promptly downlinked data we find an uncatalogued X-ray source with an enhanced position: RA, Dec = 248.6788, 72.8843 (degrees) which is equivalent to: RA (J2000.0) = 16 34 42.90 DEC...Full Text

At 22:42:27 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 090726 (trigger=358422). Swift did not slew immediately to the burst due to an Earth constraint. The BAT on-board calculated location is RA, Dec 248.819, +72.871 which is RA(J2000) = 16h 35m 16s Dec(J2000) = +72d 52' 15" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty)...Full Text