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Table 2.
Phase-connected timing solution for PSR J1012−4235, making use of combined radio and γ-ray data.
| Parameters of timing solution | |
|---|---|
| Terrestrial time standard | TT(BIPM2019) |
| Time units | TDB |
| Solar system ephemeris | DE436 |
| Reference epoch (MJD) | 59111.238529 |
| Start of timing data (MJD) | 54760.138 |
| End of timing data (MJD) | 59604.959 |
| Number of ToAs | 3971 |
| Residual rms (μs) | 3.527 |
| χ2 | 3983.29 |
| Reduced χ2 | 1.0084 |
| Astrometric and spin parameters | |
| Right Ascension, α (J2000) | 10:12:12.9388541(46) |
| Declination, δ (J2000) | −42:35:53.403185(57) |
| Proper motion in α, μα (mas yr−1) | −4.093(49) |
| Proper motion in δ, μδ (mas yr−1) | 5.154(52) |
| Parallax, ϖ (mas) | 0.85(50) |
| Spin frequency, f (Hz) | 322.4619326648837(30) |
| 1st spin frequency derivative, ḟ (Hz s−1) | −6.8062(8)×10−16 |
| Dispersion measure, DM (pc cm−3) | 71.650839(77) |
| 1st derivative of DM, DM1 (pc cm−3 yr −1) | 0.000922(88) |
| 2nd derivative of DM, DM2 (pc cm−3 yr −2) | 0.000547(36) |
| Rotation measure (rad m−2) | 61.80 |
| Binary parameters | |
| Binary model | ELL1H+ |
| Epoch of ascending node, Tasc (MJD) | 58862.548525754(33) |
| Orbital period, Pb (days) | 37.9724631823(24) |
| Projected semi-major axis, xp (lt-s) | 21.26306899(30) |
| ϵ1 | −0.000140974(16) |
| ϵ2 | 0.0003156766(88) |
| h3 (μs) | 1.222(54) |
| ς | 0.9646(49) |
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