Effective for period between Nov. 2002 - June. 2004 (Measured in Nov. 2002 & Nov. 2003)
We measured the beam size and the efficiencies only at 115GHz using S100. The measured values were in good agreement with the values measured in 2001. From this result, it is also thought that the beam size and the efficiencies are the same as those of the last year in lower frequency bands.
Measured in Nov.2003
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Receiver Frequency HPBW Aperture Main beam Calib. EL.
(GHz) (arcsec) effic(%) effic(%) source
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S100 115 14.7+-0.3 28+-3 38+-3 Saturn 72
3C279 35-36
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Measured in Nov. 2002
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Receiver Frequency HPBW Aperture Main beam Calib. EL.
(GHz) (arcsec) effic(%) effic(%) source
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S100 115 14.8+-0.1 29+-2 40+-3 Saturn 62-67
3C273 38-54
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*The details of a measuring method are the same as last year.
Refer to Antenna Efficiency(2001-2002) for the values in all frequency bands.