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Table 1
Average total brightness temperature ⟨ Tb ⟩, rms variation 
, relative brightness temperature contrast 
, and average effective formation height ⟨ heff ⟩ for a number of analyzed wavelengths.
| λ, mm | ⟨ Tb ⟩, K | , K |
|
⟨ heff ⟩, km |
|
|
||||
| 0.47 | 4517 | 538 | 0.12 | 750 |
| 1.3 | 4997 | 957 | 0.19 | 1150 |
| 3.2 | 6205 | 1360 | 0.22 | 1620 |
| 4.5 | 6775 | 1483 | 0.22 | 1770 |
| 8.6 | 8194 | 1729 | 0.21 | 2050 |
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