Swift Observations of GRB 150220A

V. D'Elia (ASDC) for the Swift team

1. Introduction

Hurley et al. (GCN Circ. 17502) reported the GRB detection. A long-duration GRB 150220A has been observed by Fermi (GBM trigger 446134898), Konus-Wind, Mars-Odyssey (HEND), and MESSENGER (GRNS), so far, at about 51696 s UT (14:21:36). Table 1 contains the best reported positions from Swift.

Table 2 is a summary of GCN Circulars about this GRB from observatories other than Swift.

2. BAT Observations and Analysis

BAT did not observe this burst.

3. XRT Observations and Analysis

XRT results are not available.

4. UVOT Observations and Analysis

UVOT results are not available.

Figure 1. The BAT light curve is not available.

RA (J2000)	Dec (J2000)	Error	Note	Reference

Table 1. Positions from the Swift instruments.

Band	Authors	GCN Circ.	Subject	Observatory	Notes
Optical	Romanyuk et al.	17645	Optical observations at Kyiv comet station
Gamma-ray	Hurley et al.	17502	IPN Triangulation	IPN
Gamma-ray	Golenetskii et al.	17503	Konus-Wind observation	Konus-Wind	Epeak=211 (-34,+55) keV Fluence=3.00(-0.29,+0.37)x10-5erg cm-2
Gamma-ray	Roberts and Meegan	17505	Fermi GBM observation	Fermi GBM	Epeak=192.3±9.5 keV Fluence=2.72±0.07x10-5erg cm-2
Other	Golovnya and Andruk	17589	the review of the sky area in plate archives

Table 2. Summary of GCN Circulars from other observatories sorted by band and then circular number.

March 27, 2015