[evlatests] Antenna 14 C-band efficiency

[Rick Perley]

    I've looked at the efficiency data from antenna 14, from yesterday's
observations:

    1) The antenna temperature change when looking at Cyg A was 33.5 K,
corresponding to an efficiency of 0.49.  There is adequate evidence of a
significant pointing error (measured offset last Thursday was 1.9 
arcminutes,
and the power received while on Cyg A had high (3%) fluctuations not seen
on the hot load or cold sky -- hopefully due to pointing variations).  Were
the offset 2 arcminutes, the correction brings the efficiency up to 55%, 
which
is where it was last February at 4800 MHz. 

    2) The cold-sky system temperature is 35K, compared to 23K last 
February.
Tsys seems to have definitely increased. 

    Rick