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Table 4
Main properties of the maps of extended sources: center of the map, integration time, rms noise, and opacity at the two observation frequencies.
| Source | RA | Dec | Integration time | Noise rms 1.25 mm | Noise rms 2.14 mm | τ 1 | τ 2 | |
| [deg] | [deg] | [h] | [mJy/beam] | [mJy/beam] | ||||
|
|
||||||||
| Horsehead | 85.25 | −2.45 | 1.57 | 14.5 | 2.0 | 0.027 | 0.022 | |
| DR 21 OH | 309.75 | 16.27 | 0.54 | 181.0 | 12.6 | 0.27 | 0.22 | |
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