Caution!! Although I am happy to share my research notes below with all visitors to my webpages, these pages are mainly designed for my own use and subject to change without warning. I do not guarantee the correctness of all contents as well.
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Caution!! Although I am happy to share my research notes below with all visitors to my webpages, these pages are mainly designed for my own use and subject to change without warning. I do not guarantee the correctness of all contents as well.
|
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Nobeyama 45M Location: Nobeyama Radio Observatory Beam size and efficiencies Effective for period between Nov. 2001 - June. 2002 (Measured between Oct. 2001 and Nov. 2001) *Based on the measurements in Nov. 2002 only at high frequency (115 GHz), the following measured values were judged to be effective till June 2003. -------------------------------------------------------------------------------
Receiver Frequency HPBW Aperture Main beam Calib. EL. comment
(GHz) (arcsec) effic(%) effic(%) source
-------------------------------------------------------------------------------
H22(ch1) 23 73.2+-0.2 63+-4 84+-5 NGC7027 62-55
(ch2) 23 72.4 0.1 62 3 81 4 NGC7027 62-55
H30 32 51.6 0.1 61 3 79 3 Saturn 64-68
3C454.3 70-70
H40 -- ---- --- --- --- -----
S40 43 38.4 0.1 60 3 77 3 Saturn 60-64 a
3C454.3 42-37
49 35.0 0.3 53 2 73 3 Saturn 72-68 a
3C273 46-50
S80 86 18.5 0.1 41 2 49 2 Saturn 70-67
3C273 43-48
100 16.1 0.1 39 4 47 4 Saturn 45-50
3C279 31-34
115 14.8 0.1 23 2 32 3 Saturn 70-72
3C279 30-36
S100 86 18.2 0.1 44 2 51 2 Saturn 70-67
3C273 43-48
100 16.1 0.1 42 4 52 4 Saturn 45-50
3C279 31-34
115 14.8 0.1 29 3 40 3 Saturn 70-72
3C279 30-36
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a: The beam sizes of the S40 receiver at 43 and 49 GHz are
elongated for about 3.5 and 5.1 arcsec, respectively, in elevation.
The beam size in the table is the average of the values in azimuth
and elevation scans.
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