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Table 1
Summary of observations.
| 3C 236 | 4C 31.04 | |
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| Date of observation | 08 May 1995 | 07 July 1995 |
| Bandwidth | 4 MHz | 4 MHz |
| Number of spectral channels | 128 | 128 |
| Channel separation | 8.0 km s-1 | 7.4 km s-1 |
| Bandpass/flux calibrators | 3C 84, 3C 273 | 3C 84 |
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| Weighting scheme | natural | natural |
| Used UV-range | <1.0 × 104 kλ | <3.9 × 104 kλ |
| Resolution | 20.0 mas × 20.0 mas | 12.1 mas × 8.7 mas |
| Beam position angle | – | 6 1 |
| rms noise (mJy beam-1) in the cubes | 0.4 | 0.8 |
| velocity coverage in final cubes | ~880 km s-1 | ~890 km s-1 |
| rms noise (mJy beam-1) in continuum maps | 1.0 | 1.8 |
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