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Table 4.
Estimated efficiencies for Yebes 40 m telescope from different contributions at four observing frequencies.
| Component | 32 GHz | 50 GHz | 72 GHz | 90 GHz |
|---|---|---|---|---|
| ηm1 | 0.95 | 0.87 | 0.75 | 0.65 |
| ηm2 | 0.99 | 0.97 | 0.94 | 0.91 |
| ηmn | 1.00 | 0.97 | 0.97 | 0.95 |
| ηohm | 1.00 | 1.00 | 1.00 | 1.00 |
| ηblock | 0.92 | 0.92 | 0.92 | 0.92 |
| ηmbr | 0.98 | 0.98 | 0.97 | 0.97 |
| ηi | 0.80 | 0.80 | 0.82 | 0.82 |
| Total ηA(a) | 0.67 | 0.59 | 0.50 | 0.41 |
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