Swift BAT 157-Month Hard X-ray Survey » SWIFT J1958.4+3510

Skip navigation and go straight to page content.

General Information:

Swift Name:	SWIFT J1958.4+3510
RA:	299.5904 (J2000)
Dec:	35.2011 (J2000)
S/N:	8681.27
Counterpart Name:	Cyg X-1
Ctpt RA:	299.5903 (J2000)
Ctpt Dec:	35.2016 (J2000)
Flux:	16420.10 (16416.90, 16423.20) × 10^-12 ergs s^-1 cm^-2, (14-195 keV)
Gamma:	1.90 (1.90, 1.90)
Chi²_{r_:}	29219.27
Redshift:	NA
Luminosity:	NA log[ergs s^-1] (14-195 keV)
AS:	1
Class:	13
Type:	HMXB

SIMBAD
NED

BAT 157-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1958.4+3510

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1958.4+3510

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J1958.4+3510

BAT Spectrum for SWIFT J1958.4+3510

SWIFT_J1958.4+3510.pha

BAT Hard X-ray Transient Source Page:

http://swift.gsfc.nasa.gov/docs/swift/results/transients/CygX-1/

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