2/10/2007 1730-1800 UT
X-band Rx on the multifeed is suffering some problems in the second IF (RHC). Tsys in CALs for this is consistently ~703 instead of the expected ~6, comparable to LHC. A strong tone (@ 8400 MHz) is barely visible in RHC while strong in LHC. Also, Bruce scans in both IFs show (regular?) dropouts, worse in RHC.
Scans on 0208-512 - LHC, RA and Dec
Tsys 5.65 CAL 5.48
CAL 52.1 VFC 52.2
Amp 2.075 VFC 1.786
Pointing offsets originally ~0.2-0.3 arcminutes in RA, Dec.
Poor weather conditions - windy with overcast and scattered showers.
samtest output is /scratch/XMultifeedOct07.oct
Windstowed during samtest, parked by the 1 minute mark. Nix the first 80000 points?
C-band testing.
One jump seen in the bruce scans - VFC level shifted by ~1 count mid-scan and stayed elevated. No dropouts visible in the scans.
Scans on 0208-512 - LHC, RA and Dec, RHC , RA and Dec.
b0727517.928-.948
Pointing errors on ~0.4 and -0.5 in RA and Dec originally.
samtest output is /scratch/CMultifeedOct07.oct but is made pointing off 3C161 instead of 0208-512.
Scans on 3C161 - Whole bandpass RHC only
b0727518.445 - .470
17.1 16.6
17.2 17.2
2.332 2.381
Some dropouts which killed the scans. Only seen in LHC but they appear as spikes. Very grim.
Pointing errors of ~1, arcminute
