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Table 2
Parameters of the NGC 891 LOFAR HBA observations.
| Start date (UTC) | 31 March 2013 / 09:00 |
| End date (UTC) | 31 March 2013 / 16:59 |
| Interleaved calibrator | 3C48 |
| Scan length on calibrator | 2 min |
| Scan length on target | 15.8 min |
| Duration of observations | 8 h |
| Final time on target | 5.56 h (21 scans) |
| Frequency range | 129.2–176.8 MHz |
| Final frequency range | 129.2–163.6 MHz |
| Total bandwidth on target | 47.6 MHz |
| Final bandwidth on target | 34.4 MHz |
| Reference frequency | 146.38 MHz |
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