SGR burst detected by KW on 2004-11-25
at T0 = 7853.297 s UT (02:10:53.297)

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)
-0.028 0.160 0.188 0.092-0.055+0.055 0.018-0.004+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 0.98-0.07+0.07 3.20-0.31+0.31 ... 4.54-0.84+0.97 36.54-11.85+43.37 14.49-1.43+1.71 2.48-0.80+2.00 16.77/12