SGR burst detected by KW on 1996-11-18
at T0 = 19510.181 s UT (05:25:10.181)

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)
-0.120 0.512 0.632 0.288-0.026+0.026 0.124-0.009+0.009

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)
CPL 1 - 4 4.35-0.12+0.12 2.61-0.17+0.17 -0.08-0.38+0.40 27.05-2.74+2.34 ... 40.54/24
2BB 1 - 4 4.35-0.13+0.13 2.62-0.17+0.17 ... 2.21-0.35+0.46 543.24-215.65+1045.51 9.27-0.25+0.26 12.27-4.76+20.99 21.50/23