Table 1.
Observation information of the three VLBI experiments.
| Epoch | Obs. date | Array | Frequency | Bandwidth | Obs. time | Antennas |
|---|---|---|---|---|---|---|
| [GHz] | [MHz] | [h] | ||||
| 1 | 2020-10-17 | EVN | 6.7 | 256 | 4 | Jb Wb Ef Mc O8 T6 Tr Ys Ir Sr Km |
| 2 | 2020-11-24 | VLBA | 1.6/4.5/6.7 | 384/256/256 | 4.5/1.5/1.5 | Br Fd Hn Kp La Mk Nl Ov Pt Sc |
| 3 | 2020-12-09 | VLBA | 1.6/4.5/6.7 | 384/256/256 | 4.5/1.5/1.5 | Br Fd Hn Kp La Mk Nl Ov Pt |
Notes. Col. 4 – observing frequency; Col. 5 – total bandwidth per polarisation; Col. 6 – total observing time. EVN telescope codes: Jb – Jodrell Bank Mk2 (United Kingdom), Wb – Westerbork (The Netherlands), Ef – Effelsberg (Germany), Mc – Medicina (Italy), O8 – Onsala (Sweden), T6 – Tianma (China), Tr – Torun (Poland), Ys – Yebes (Spain), Ir – Irbene (Latvia), Sr – Sardinia (Italy), Km – Kunming (China); VLBA telescope codes: Br – Brewster, Fd – Fort Davis, Hn – Hancock, Kp – Kitt Peak, La – Los Alamos, Mk – Mauna Kea, Nl – North Liberty, Ov – Owens Valley, Pt – Pie Town, Sc – St. Croix.
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