Table 1.
Observing systems and timing datasets of J1455−3330.
| Telescope | JBO | Nançay | GBT | MeerKAT | |||||
|---|---|---|---|---|---|---|---|---|---|
| Receiver | L-band | L-band | Rcvr_800 | Rcvr_1_2 | L-band | ||||
| Backend | AFB | DFB | BON | NUPPI | GASP | GUPPI | GASP | GUPPI | PTUSE |
| CF (MHz) | 1402 | 1520 | 1400 | 1484 | 844 | 820.5 | 1410 | 1518 | 1283.58 |
| BW (MHz) | 64 | 380 | 64/128 | 512 | 64 | 180 | 64 | 640 | 856 |
| Start MJD | 48920 | 54849 | 53375 | 55819 | 53217 | 55278 | 53219 | 55429 | 58589 |
| End MJD | 55114 | 60471 | 55812 | 60113 | 55578 | 58940 | 55245 | 58939 | 60411 |
| No. of ToAs | 297 | 67 | 671 | 3617 | 479 | 4843 | 564 | 4932 | 991 |
| Weighted rms residual (μs) | 64.406 | 24.187 | 5.282 | 2.648 | 4.835 | 3.918 | 5.679 | 3.748 | 1.895 |
| Reduced χ2 | 1.01 | 0.96 | 0.98 | 0.99 | 0.94 | 0.93 | 1.02 | 1.04 | 0.98 |
| EFAC | 1.07 | 1.21 | 1.06 | 1.30 | 0.99 | 1.02 | 0.99 | 1.02 | 1.07 |
| log10(EQUAD) | −4.38 | −7.09 | −9.83 | −7.84 | −5.89 | −8.61 | −5.89 | −8.61 | −6.3 |
Notes. The table shows the telescopes, receivers, backend specifications, associated centre observing frequency (CF), the effective observable bandwidth (BW), the number of frequency channels (Nchans), the time span of the dataset, the timespan in years, the number of ToAs, best-fit reduced χ2 derived from a subsequent TEMPO2 fit, and the derived white-noise parameters EFAC and EQUAD, which were determined with temponest.
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