Vela X-1 History from Jun 21, 2021 to Dec 3, 2021

Vela X-1 Short Frequency History

Vela X-1 Full History

Vela X-1 Full History

The most recent pulse profile quick look: Vela X-1_Profile

New Fits Version of Full History (Beta version): Vela X-1

Old Fits Version of Full History: Vela X-1


Vela X-1

The parameters below are used for this source in the GBM epoch-folding monitor

Source Monitor Parameters
RA
135.5286 deg
Decl
-40.5547 deg
Orbital Parameters
Orbital Period
8.9642140 days
Period Deriv.
0.0000E+00 days/day
Tπ/2
2459115.02085 (JED)
axsin(i)
113.105 light-sec
Long. of periastron
162.33 deg
Eccentricity
0.0872
Egress
0.12
Ingress
0.92

Notes:

Preliminary update to orbit on 2021 Jan 30 by Jenke, Peter A


Modification date: 3 Dec, 2021

Author Valerie Connaughton
Responsible Manager Stephen Elrod
Site Curator Peter Jenke