Table 1.
Summary of the data sets used in this analysis.
| Receiver(s) | Freq. | Bandw. | Temp. | Gain | # obs | Time | First obs. | Last obs. | # bands | # ToAs | Median err. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (MHz) | (MHz) | K | K Jy−1 | (hours) | (μs) | ||||||
| Parkes multibeam | 1382 | 400 | ∼21 | ∼0.9 | 93 | 33 | 1 March 2012 | 8 April 2019 | 4 | 365 | 26.4 |
| MeerKAT L-band | 1284 | 856 | 4–7 | ∼2.6 | 37 | 26 | 12 February 2019 | 25 May 2023 | 8 | 508 | 5.39 |
| Parkes UWL | 2368 | 3328 | ∼22 | ∼0.9 | 56 | 72 | 4 May 2020 | 6 June 2023 | 8 | 444 | 19.5 |
| MeerKAT S-band | 2406 | 875 | 4–7 | ∼2.3 | 10 | 19 | 12 May 2023 | 28 May 2023 | 4 | 228 | 5.43 |
Notes. The data were recorded in folding mode with four polarisation channels and 1024 phase bins of 28.28 of μs in length. The system temperatures are drawn from the https://skaafrica.atlassian.net/wiki/spaces/ESDKB/pages/277315585/MeerKAT+specifications, the https://www.atnf.csiro.au/research/multibeam/lstavele/description.html and Hobbs et al. (2020). The gain is estimated from the collecting area, accounting that only 56 antennas are available in the MeerKAT S-band configuration. The last three columns indicate timing data reduction parameters: number of sub-bands used in multi-frequency timing, number of ToAs per data set, and the median ToA uncertainty.
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