SGR burst detected by KW on 2004-08-30
at T0 = 23313.143 s UT (06:28:33.143)

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)
-0.086 0.076 0.162 0.102-0.017+0.017 0.044-0.003+0.003

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 1.99-0.14+0.14 2.74-0.27+0.27 ... 5.15-1.29+1.09 32.24-9.60+58.29 13.46-2.95+4.53 2.34-0.77+1.97 9.93/10