SGR burst detected by KW on 2004-10-26
at T0 = 76305.409 s UT (21:11:45.409)

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)
-0.450 0.244 0.694 0.506-0.039+0.039 0.212-0.013+0.013

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 - 3 2.84-0.11+0.11 2.13-0.17+0.17 ... 4.01-0.94+1.02 54.56-19.22+123.80 11.43-0.84+0.99 4.91-1.84+3.87 22.51/19