GRB 090422

Time: 03:35:16
Trigger Number: 349931
Burst Advocate: Tilan Ukwatta

BAT Data:

RA: a	294.746 19:38:59.0
Dec: a	40.398 40:23:52.8
90% Error Radius: b	2.0
T90: c	8.5
Fluence: d	2.3 (0.4)
1s Peak Photon Flux: e	1.7 (0.2)
Photon Index: f	1.72, PL (0.30)

---

90% error in parentheses,
^a J2000; ^b arcmin; ^c seconds; ^d 10^-7 erg/cm² (15-150 keV); ^e ph/cm²/sec (15-150 keV); ^f PL = simple power-law, CPL = cutoff power-law (15-150 keV)

BAT Light Curve:

XRT Data:

RA: a	19:38:59.90
Dec: a	40:23:03.2
90% Error Radius: b	1.4
Time to First Observation: c	64.00
Early Flux: d	55.1
11 Hour Flux: d	0.028419876
24 Hour Flux: d	0.013121856
Initial Temporal Index:	-0.9906
Spectral Index (Gamma):	2.33016
Column Density (NH): e	3.52531

---

Note: Please be aware that only the very basic temporal and spectral quantities are reported here. You are strongly encouraged to see the referenced GCN circulars for full details.
^a J2000; ^b arcsec; ^c seconds; ^d 10^-11 erg/cm²/s (0.3-10 keV); ^e 10²¹ cm^-2

» XRT GRB Live Catalogue
» XRT Light Curves
» XRT Spectra

UVOT Data:

RA: a	n/a
Dec: a	n/a
90% Error Radius: b	n/a
Time to First Observation: c	55
V Magnitude:	V>20.3
Other Filter Magnitudes:	B>20.8 U>20.8 UVW1>21.0 UVM2>20.8 UVW2>20.8 White>20.8

---

^a J2000; ^b arcsec; ^c seconds

Comments:

UVOT: no detection

References:

BAT: GCN 9185; GCN 9195
XRT: GCN 9185; GCN 9194; GCN 9208; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9185; GCN 9203
Radio:
Redshift:
Host:
Other: GCN Report 214.1