Cumulative System performance
The cumulative system performance is
plotted
for each receiver. The plots are limited to 2000 measurements.
When
something
occurs that may change the gain of the system (moving a horn,
shimming
the elevation rails) then a new epoch will be started. The old
data
is moved to the old system performance data page (the old
data
link
points to this).
- The points plotted per page are limited to the 2000 most
recent
points.
This could make is so that the 1st multi frequency page
could
cover
less time than the individual frequency pages. This constraint
is not
used
for the az,za page or the hour of day page (these include all of
the
data).
327 receiver
430 dome receiver
430 ch (linefeed) receiver
610
receiver
800
receiver
lband
narrow
lband wide
alfa
sband narrow
sband wide (2-3 Ghz)
sband high (3-4 Ghz)
cband (4-6 Ghz)
cbandHi (6-8 Ghz)
xband (8-10 Ghz)
Miscellaneous multi frequency
measurements
- 01mar03 thru lastModdate (reshimming of elevation
rails
to
- current
date)
Old
data
430 dome receiver ()
(top)
- 01mar03 thru lastModDate (reshimming rails to current
date)
Old
data
430 ch receiver () (top)
- 29jun09 thru lastModDate (cooled rcvr to - current
date)
Old
data
- 01mar03 thru lastModDate (reshimming rails,new
rcvr to
- current
date)
Old
data
The data is first plotted with all pixels
together.
Color is used to code the pixel number. After the combined plot
there
are
7 more plots showing each pixel by itself. For these plots
color
is used to distinguish the source used. The data is 100 Mhz centered
at
1420 Mhz.
- 29nov04 thru lastModDate (start alfa calibration
scans ,
to
current
date)
Old
data
01mar03 thru lastModDate (ddmonyy reshimming of
elevation
rails
to - current date).
27feb12 to 04mar12 sbn pointing
model 18 .so pointing errors are large.
Old
data
14may04 thru lastModDate (diode replacement) to -
current
date).
Old
data
04feb04 thru lastModDate (horn lowered .8 inches,new
cals
- current date).
Old
data
- 25may05 thru lastModDate ( new amps installed
to
current date).
Old
data
- 08feb04 thru lastModDate ( installation to
current
date).
- 15mar04 thru last mod date. (newcals,amps,rcvr work
to
current
date)
Old
data
Misc,
multi-freq:
(top)
14feb05:
hpbw
vs lambda (all rcvrs) for data taken 2004
14feb05:
hi
frequency performance after reflector adjustments.
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