12meter system performance

07mar16




Some Parameters  



sband
xband
notes
beamWid(Amin)
39.9'
10.0'
sband fwhm from model3A(2016)
xband fwhm from model4A(2021)
sefd
4500 Jy
3600 to 4200 Jy
sband: 2016
xband: 2022 at el = 60 deg (more info)
telescope gain

.026 K/Jy
sband
xband:(more info)
aperture efficiency

63%
sband
xbnad: (more info)
confusion limit(mJy)
151.8 mJy
3.8 mJy
.17mJy*bmWd(amin)^2*(frqGhz)^-.7
integration time to hit
confusion limit.
bandwid=172e6

6.3 secs
8153 secs

Tsys variation with elevation
20%
about 35 K
sband more info
xband: more info (25jun22 crosses)
Tsys
107K
94 to 102K
at el=88deg




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