SGR burst detected by KW on 2004-05-22
at T0 = 31696.702 s UT (08:48:16.702)

Lightcurve
Lightcurve

Source properties

Name:  SGR 1806-20
Coordinates[J2000]: (272.1639, -20.4111)
Proposed associations: W31,  MC 13A,  massive star cluster
Distance:  8.7 kpc
P, Ṗ:   ∼ 7.55 s,  ∼ 49.5 × 10-11 s s-1
B surf:  ∼ 20.0 × 1014 G
Characteristic age:  ∼ 0.2 kyr

Temporal analysis

Ti (s) Tf (s) T100 (s) T90 (s) T50 (s)
-0.088 0.078 0.166 0.110-0.013+0.013 0.052-0.004+0.004

Spectral analysis

Model Spectra Fluence Peak flux α Ep kT1 R1 kT2 R2 χ2/dof
(10-6 erg/cm2) (10-5 erg/cm2/s) (keV) (keV) (km) (keV) (km)
2BB 1 1.94-0.12+0.20 2.56-0.25+0.36 ... 5.80-1.26+1.09 25.82-6.50+22.00 13.26-3.41+19.77 2.63-1.27+4.99 14.93/11