Vela X-1 History from Jun 9, 2025 to Nov 21, 2025
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:
21 Nov, 2025
