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Table 2
WSRT observations.
| Frequency bands 21 cm (IFs) | 1311, 1330, 1350, 1370, 1392, 1410, 1432, 1450 MHz |
| Frequency bands 18 cm (IFs) | 1650, 1668, 1686, 1704, 1722, 1740, 1758, 1776 MHz |
| Bandwidth per IF | 20 MHz |
| Number of channels per IF | 64 |
| Channel width | 312.5 kHz |
| Polarization | XX, YY, XY, XY |
| Observation dates | 28 March, 25 and 31 May, 7 and 16 June 7, 2009 |
| Integration time | 30 s |
| Total on-source time | 12.5 h (21 cm) , 12.5 h (18 cm) |
| Beam size | 23.5″ × 17.0″ (21 cm), 23.5″ × 17.0″ (18 cm) |
| Rms noise (σrms) | 27 μJy beam-1 (21 cm), 33 μJy beam-1 (18 cm) |
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