Swift Observations of GRB 150219A

K.L. Page (U. Leicester) for the Swift team

1. Introduction

Mereghetti et al. (GCN Circ. 17476) reported the GRB detection. A gamma ray burst lasting about 60 s has been detected by IBAS in the IBIS/ISGRI data at 12:31:14 UT of February 19 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.

XRT light curve

Figure 2. The XRT light curve. Any data from a crosshatched region are not included in the fit.

RA (J2000) Dec (J2000) Error Note Reference
18h05m00.38s -41°35'40.3" 1.8" XRT-final UKSSDC
18h05m00.18s -41°35'39.0" 3.7" XRT Page et al. GCN Circ. 17480

Table 1. Positions from the Swift instruments.

Band Authors GCN Circ. Subject Observatory Notes
Gamma-ray Mereghetti et al. 17476 A long GRB detected by INTEGRAL INTEGRAL Fluence=4x10-6erg cm-2
Gamma-ray von Kienlin and Meegan 17481 Fermi GBM observation Fermi GBM Epeak=202.7 (+23.2/-19.1) keV
T90=36 seconds
Fluence=1.00±0.05x10-5erg cm-2
(75th percentile for long GRBs)

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

February 23, 2015