The Neil Gehrels Swift Observatory

General Information:

Swift Name:SWIFT J2157.2-6942
RA:329.3889 (J2000)
Dec:-69.6945 (J2000)
S/N:8.87
Counterpart Name:PKS 2153-69
Ctpt RA:329.2749 (J2000)
Ctpt Dec:-69.6899 (J2000)
Flux:14.50 (11.68, 17.54) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:1.96 (1.70, 2.25)
Chi2r:0.63
Redshift:0.0283
Luminosity:43.44 log[ergs s-1] (14-195 keV)
AS:1
Class:4
Type:Sy1.8

BAT 157-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J2157.2-6942

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J2157.2-6942

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J2157.2-6942

BAT Spectrum for SWIFT J2157.2-6942

Data last modified: 15 Sep 2025
Page last modified: 03 Jun 2025