Project: TPTCSRMP_061117
Project: TPTCSRMP_061117
Goals: Quick half-power tracks on 3C84 to get some servo data for John Ford
Weather: very overcast, but reasonably low wind. Did not use Archivist;
sampler2logs should be running, average winds from 2.5 to 2.7 m/s (see below)
Startup: Ok, (note added by Todd: X-band rx used)
Scan Source Proc Comments
1 0319+4130 Peak Abort; spikes in data; Zpectrometer in Scan-coord
2-5 " Peak Looks good
6 " Focus Looks good
7-11 " P/F Repeat peak/focus
12 " Track 15 min track offset in Azimuth: 2006_11_18_00:45:50.fits (average of first DCR = 143390)
start_az = 425.66 = 65.66 end_az = 426.81 = 66.81 (notes added by Todd)
start_el = 43.79 end_el = 46.48 (rising) "
wind(rms): 3.7(1.3) 2.3(0.9) 1.6(0.5) direction1=54(22) direction2=189(19)
avgWind = 2.5 m/s angle to wind1 = 66-54 = 12 , angle to wind2 = 66-189 =-123
calibrated mean = 48.1684 46.5614,
Using scale factor derived below, we get rms = 2.55"/2.30", avg = 2.38"
13-17 " P/F Peak/Focus
18 " Track 60 second track on peak: 2006_11_18_01:08:29.fits (average of first DCR = 61822)
raw mean = 61821.8 102677
calibrated mean = 60.5122 K 59.2908 K
19 " Track 15 min track offset in Elevation: 2006_11_18_01:10:38.fits (average of first DCR = 43488)
start_az = 427.52 = 67.52 start_el = 48.26 (notes added by Todd)
end_az = 428.57 = 68.57 end_el = 50.99 (rising) "
wind(rms): 2.6(0.9) 3.6(0.9) 1.9(0.7) direction1=90(79) direction2=183(19)
avgWind = 2.7 m/s angle to wind1 = 68-90 = -22 deg, angle to wind2=68-183=-115
calibrated mean = 42.5615 41.3746,
Assuming a signal of 2*(60-0.5*(48.2+42.6)) = 29.2K, and 82" beam, then we expect
1.69 percent per arcsec = .0169*29.2 = 0.493K per arcsec in polzn 1, 0.541K per arcsec in polzn 2
rms = 1.74"/1.57", avg = 1.66"
Finito
-- RichardPrestage - 20 Nov 2006
- el.arplot.ps: autoregressive model from Fred Schwab on scan 19
el.arplot.ps 
el.arplot.pdf