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Table 1
GMRT observations.
| 147 MHz | 241 MHz (dual) | 325 MHz | 610 MHz (dual), 610 MHz | 1280 MHz | |
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| Observation date | Apr. 29, 2010 | Nov. 20, 2009 | Apr. 25, 2010 | Nov. 20, 2009 & 30 Apr., 2010 | Nov. 12, 2009 |
| Usable bandwidth | 15 MHz | 6 MHz | 30 MHz | 30 MHz | 30 MHz |
| Channel width | 31.25 kHz | 62.5 kHz | 62.5 kHz | 62.5 kHz | 62.5 kHz |
| Polarization | RR+LL | LL | RR+LL | RR, RR+LL | RR+LL |
| Integration time | 4 s | 8 s | 8 s | 8 s | 16 s |
| Total on-source time | 5.5 h | 3.5 h | 6.5 h | 3.5 + 6.0 h | 4.0 h |
| Beam size | 26″ × 22″ | 16″ × 12″ | 12″ × 8.7″ | 5.1″ × 4.1″ | 5.8″ × 2.0″ |
| Rms noise (σrms) | 0.92 mJy beam-1 | 300 μJy beam-1 | 79 μJy beam-1 | 26 μJy beam-1 | 32 μJy beam-1 |
| Briggs weighting | 0.5 | 0.5 | 0.0 | 0.0 | 0.5 |
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