"We used the Very Large Array to observe the field of view toward GRB 061222A (GCN 5954) at a frequency of 8.46 GHz on 2006 December 23 at obsdate%Dec 23 0.15 0.15 UT. The peak radio brightness at the XRT position (GCN 5966) is 285 uJy ± 68 uJy ....Full Text

We observed error box of GRB 061222a (Grupe et al., GCN 5954) with Shajn 2.6m telescope of CrAO. A set of 60 s exposures was taken on Dec. 22 in R between (UT) 18:28 - 19:29. We do not detect afterglow registered in Ks (Cenko et al., GCN 5975, GCN 5978). No object is also detected in refined XRT error box (Grupe, GCN 5966). Based on the USNO A2.0 star (RA 23 53 02.73 DEC +46 32 18...Full Text

The most intense part of the long GRB 061222A(Swift-BAT trigger #252588; Grupe et al., GCN 5954; Tueller et al., GCN 5964) triggered Konus-Wind at T0=12614.682 s UT (03:30:14.682). The emission is clearly seen in the Konus-Wind data starting at T-T0~-80 s....Full Text

We observed the error box of GRB 061222A (Grupe et al., GCN 5954) with the 3-color 50cm MITSuME Telescope at Akeno, Japan starting at 8:48:53 UT, 5.3 hours after the trigger. In the co-added images of Ic, Rc, and g' bands, we did not detect any new source in the XRT error circle. The 3-sigma limiting magnitudes based on USNO-B1.0 (I-band) and NOMAD (R-band,g'-band) stars are following...Full Text

We have further refined the processing of our first epoch of Gemini Ks-band imaging of GRB 061222A (see GCN 5975). Using 12 2MASS stars in the field, we report a refined position for the afterglow candidate of: ...Full Text

We have imaged the field of GRB 061222A with the 2.16m telescope at Xinglong Observatory. A 30 minutes R band image is obtained 9.97 hours after the burst.The afterglow candidate (S.B. Cenko et al., GCN 5975) was not detected and no new source was seen with 3-simga limit magnitude R~22.4 derived from USNO B1.0...Full Text

We have imaged the field of GRB 061222A (Grupe et al, GCN 5954) with the Near-Infrared Imager mounted on the Gemini-North telescope. Observations were taken in the Ks filter at a mean epoch of ~ 5:50 Dec. 22 UT. Inside the revised XRT error circle (Grupe et al, GCN 5966), we find one faint source at location (J2000.0): ...Full Text

The Swift/UVOT began observing the field of GRB 061222A 92 seconds after the BAT trigger (Grupe et al., GCN 5954). No optical afterglow candidate is detected in the XRT error circle within the first V and White exposures or in later coadded images....Full Text

We perfomed optical imaging of the field of GRB 061222A (GCN 5954, GCN 5964, GCN 5966) at 9:43-10:05 UT 22 Dec. using the TRISPEC attached to the KANATA 1.5-m telescope at Higashi-Hiroshima Observatory, Japan. We obtained 7 R-band images with a 123-s exposure time. The images were calibrated with neighbor stars in the USNO A2.0 catalog (r mag.). ...Full Text

We have analyzed the first orbit of GRB 061222A (Grupe et al., GCN 5954) with total observing times of 117s in Windowed Timing mode and 1476s in Photon Counting mode in the Swift XRT. The Photon Counting mode image provides a refined XRT position at RA, Dec= RA 358.263708, DEC +46.53297, which is ...Full Text

Using the data set from T-240 to T+302 sec from the recent telemetry downlink, we report further analysis of BAT GRB 061222A (trigger #252588) (Grupe, et al., GCN 5954). The BAT ground-calculated position is RA, Dec = RA 358.258, DEC 46.527 deg which is ...Full Text

ROTSE-IIIb, located at McDonald Observatory, Texas, responded to GRB 061222A (Swift trigger 252588, GCN 5954, Gruppe, et al), producing images beginning 7.3 s after the GCN notice time. An automated response took the first image at 03:29:39.3 UT, 47.1 s after the burst, under excellent conditions. We took 10 5-sec, 10 20-sec and 10+ 60-sec exposures. These unfiltered images are calibrated...Full Text

At 03:28:52 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 061222 (trigger=252588). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec RA 358.243, DEC +46.526 which is ...Full Text

1 Introduction

BAT triggered on GRB 061222A at 03:28:52 UT (Trigger 252588) (Grupe, et al., GCN 5954). This burst is a long burst with an observed T90 = 72±3 s. Swift slewed to this burst immediately and XRT began follow-up observations at T + 101 s, and UVOT at T + 92 s. Our best position is the XRT location RA(J2000) = 358.263708 deg (23h53m03.29s), Dec(J2000) = +46.53297 deg (+46d31 58.7 ) with an error of 3.5 arcsec (90% confidence, including boresight uncertainties) as reported in Grupe GCN 5966.

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