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Table 1
The two major antennas at MDSCC, Robledo.
| Antenna | DSS-63 | DSS-54 | ||
| Diameter (m) | 70 | 34 | ||
| Type1 | HEF | BWG | ||
| Latitude2 (deg) | 40:25:52 | 40:25:32 | ||
| Longitude2 (deg) | 355:45:71 | 355:44:45 | ||
| Elevation2 (m) | 865 | 838 | ||
| Receiver band | K | Q | ||
| Frequency range (GHz) | 18–26 | 38–50 | ||
| Half-power beam width (′′) | 42 | 43 | ||
| Receiver temperature (K) | 25 | 40 | ||
| System temperature (K) | 45–90 | 80–100 | ||
| Typical opacity at zenith | 0.08 | 0.10 | ||
| Aperture efficiency | 0.50 | 0.46 | ||
| Sensitivity (Jy/K) | 2.8 | 6.7 |
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