| Parameter | Value | Instrument |
| RA | 18:07:00.0 (J2000) | Chandra1 |
| Dec | -29:24:30.0 (J2000) | Chandra1 |
| Orbital period | 40.0741(5) min | RXTE1 |
| Spin period | 5.2459427(4) ms | XMM-Newton2 |
| Proj. orbital radius x0 | 4.8(1) light-ms | XMM-Newton2 |
| Orbital phase t0 | 52 720.67415(16) (MJD) | XMM-Newton2 |