TGBT14A_912_60 - Testing Bank to Bank discrepancies
Goals
- Requantization balancing should be working now, but keep an eye on this.
- Run Mode 3 / L-band and check Tsys/Ta variations
- Run same configuration with closest Spectrometer mode, and see how that compares
- Repeat for VEGAS with additional modes
Details
- Take over at 8:00am. Will have to work around PF feed change
- Galactic coords = (73,47), so quite far out of the plane
- Start at 8:15am
- Start with bank_gain_mode3_lband
- Scan 1 fails - Antenna problem
- Scan 2 - 60sec fsw track
GBTIDL -> getfs,2,ifnum=0
Scan: 2 units: Ta (K) Tsys: 17.65
GBTIDL -> getfs,2,ifnum=1
Scan: 2 units: Ta (K) Tsys: 17.62
GBTIDL -> getfs,2,ifnum=2
Scan: 2 units: Ta (K) Tsys: 17.81
GBTIDL -> getfs,2,ifnum=3
Scan: 2 units: Ta (K) Tsys: 17.48
GBTIDL -> getfs,2,ifnum=4
Scan: 2 units: Ta (K) Tsys: 17.85
GBTIDL -> getfs,2,ifnum=5
Scan: 2 units: Ta (K) Tsys: 17.46
GBTIDL -> getfs,2,ifnum=6
Scan: 2 units: Ta (K) Tsys: 17.72
GBTIDL -> getfs,2,ifnum=7
Scan: 2 units: Ta (K) Tsys: 17.97
GBTIDL -> getfs,3,ifnum=0
Scan: 3 units: Ta (K) Tsys: 17.35
GBTIDL -> getfs,3,ifnum=1
Scan: 3 units: Ta (K) Tsys: 17.32
GBTIDL -> getfs,3,ifnum=2
Scan: 3 units: Ta (K) Tsys: 17.50
GBTIDL -> getfs,3,ifnum=3
Scan: 3 units: Ta (K) Tsys: 17.27
GBTIDL -> getfs,3,ifnum=4
Scan: 3 units: Ta (K) Tsys: 17.41
GBTIDL -> getfs,3,ifnum=5
Scan: 3 units: Ta (K) Tsys: 17.17
GBTIDL -> getfs,3,ifnum=6
Scan: 3 units: Ta (K) Tsys: 17.34
GBTIDL -> getfs,3,ifnum=7
Scan: 3 units: Ta (K) Tsys: 17.57
- Scan 4 - bank_gain_mode3_lband_acs - only four windows
GBTIDL -> getfs,4,ifnum=0
Scan: 4 units: Ta (K) Tsys: 16.27
GBTIDL -> getfs,4,ifnum=1
Scan: 4 units: Ta (K) Tsys: 15.59
GBTIDL -> getfs,4,ifnum=2
Scan: 4 units: Ta (K) Tsys: 16.69
GBTIDL -> getfs,4,ifnum=3
Scan: 4 units: Ta (K) Tsys: 15.24
GBTIDL -> getfs,5,ifnum=0
Scan: 5 units: Ta (K) Tsys: 15.55
GBTIDL -> getfs,5,ifnum=1
Scan: 5 units: Ta (K) Tsys: 14.96
GBTIDL -> getfs,5,ifnum=2
Scan: 5 units: Ta (K) Tsys: 16.02
GBTIDL -> getfs,5,ifnum=3
Scan: 5 units: Ta (K) Tsys: 14.62
- VEGAS seems as stable as Spectrometer in this test.
- system temperatures are different, but different bandpasses and RFI. Check system temps in a clean part of the band.
- Switch to mode 21 (the mode Dana used)
- bank_gain_mode21_lband - Scan 6
- All balances seem ok, apart from Bank D - which is stuck at -10dB. But no error message - why not?
- Scan 7 - repeat. Now Bank D looks ok
GBTIDL -> getfs,7,ifnum=0
Scan: 7 units: Ta (K) Tsys: 16.85
GBTIDL -> getfs,7,ifnum=8
Scan: 7 units: Ta (K) Tsys: 16.10
GBTIDL -> getfs,7,ifnum=16
Scan: 7 units: Ta (K) Tsys: 21.11
GBTIDL -> getfs,7,ifnum=24
Scan: 7 units: Ta (K) Tsys: 17.98
GBTIDL -> getfs,7,ifnum=32
Scan: 7 units: Ta (K) Tsys: 16.28
GBTIDL -> getfs,7,ifnum=40
Scan: 7 units: Ta (K) Tsys: 15.91
GBTIDL -> getfs,7,ifnum=48
Scan: 7 units: Ta (K) Tsys: 17.79
GBTIDL -> getfs,7,ifnum=56
Scan: 7 units: Ta (K) Tsys: 21.23
- Individual spectra all look sensible (no obvious problems).
- Tsys for all subbands in a Bank are identical (which is good).
- Spot check of two banks, all sbNsnap values are -20dBm, as requested
- What to do now?
- Someone else is doing testing - is it Melinda? They are taking scans! Turns out it was Jonah testing PF1
- Start again at 9:50am
- Scan 11 bank_gain_mode21_lband-26 (target balance -26dBm)
- input power and sbNsnaps seem to balance ok
- Tsys 95k - boom is out? - yes - finally get it retracted...
- Scan 12 bank_gain_mode21_lband-26. Input power and sbNsnaps balance ok
GBTIDL -> getfs,12,ifnum=0
Scan: 12 units: Ta (K) Tsys: 15.48
GBTIDL -> getfs,12,ifnum=8
Scan: 12 units: Ta (K) Tsys: 14.75
GBTIDL -> getfs,12,ifnum=16
Scan: 12 units: Ta (K) Tsys: 19.15
GBTIDL -> getfs,12,ifnum=24
Scan: 12 units: Ta (K) Tsys: 16.63
GBTIDL -> getfs,12,ifnum=36
Scan: 12 units: Ta (K) Tsys: 15.13
GBTIDL -> getfs,12,ifnum=40
Scan: 12 units: Ta (K) Tsys: 15.14
GBTIDL -> getfs,12,ifnum=48
Scan: 12 units: Ta (K) Tsys: 16.56
GBTIDL -> getfs,12,ifnum=56
Scan: 12 units: Ta (K) Tsys: 19.38
- Scan 13 bank_gain_mode21_lband-14. Input power and sbNsnaps balance ok
GBTIDL -> getfs,13,ifnum=0
Scan: 13 units: Ta (K) Tsys: 16.03
GBTIDL -> getfs,13,ifnum=8
Scan: 13 units: Ta (K) Tsys: 15.04
GBTIDL -> getfs,13,ifnum=16
Scan: 13 units: Ta (K) Tsys: 19.55
GBTIDL -> getfs,13,ifnum=24
Scan: 13 units: Ta (K) Tsys: 16.91
GBTIDL -> getfs,13,ifnum=32
Scan: 13 units: Ta (K) Tsys: 15.36
GBTIDL -> getfs,13,ifnum=40
Scan: 13 units: Ta (K) Tsys: 15.41
GBTIDL -> getfs,13,ifnum=48
Scan: 13 units: Ta (K) Tsys: 16.79
GBTIDL -> getfs,13,ifnum=56
Scan: 13 units: Ta (K) Tsys: 20.04
GBTIDL ->
- Scan 14 bank_gain_mode11_lband. Input power and sbNsnaps balance ok
GBTIDL -> getfs,14,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 16.40
GBTIDL -> getfs,14,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 16.36
GBTIDL -> getfs,14,ifnum=2
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 16.44
GBTIDL -> getfs,14,ifnum=3
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 16.36
GBTIDL -> getfs,14,ifnum=4
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 16.48
GBTIDL -> getfs,14,ifnum=5
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 17.01
GBTIDL -> getfs,14,ifnum=6
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 16.69
GBTIDL -> getfs,14,ifnum=7
Blanked spectra: ignored 1 integrations
Scan: 14 units: Ta (K) Tsys: 16.77
- Mode 11 looks ok - repeat! - Scan 15
GBTIDL -> getfs,15,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.08
GBTIDL -> getfs,15,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.04
GBTIDL -> getfs,15,ifnum=2
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.12
GBTIDL -> getfs,15,ifnum=3
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.05
GBTIDL -> getfs,15,ifnum=4
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.10
GBTIDL -> getfs,15,ifnum=5
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.74
GBTIDL -> getfs,15,ifnum=6
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.38
GBTIDL -> getfs,15,ifnum=7
Blanked spectra: ignored 1 integrations
Scan: 15 units: Ta (K) Tsys: 16.49
- Scan 16 - Mode 4 - Astrid hangs up - VEGAS fault;BankA Manager failed to activate - clears itself
- All balances look ok.
GBTIDL -> getfs,16,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 16.15
GBTIDL -> getfs,16,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 16.16
GBTIDL -> getfs,16,ifnum=2
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 15.13
GBTIDL -> getfs,16,ifnum=3
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 15.72
GBTIDL -> getfs,16,ifnum=4
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 15.01
GBTIDL -> getfs,16,ifnum=5
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 13.73
GBTIDL -> getfs,16,ifnum=6
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 15.75
GBTIDL -> getfs,16,ifnum=7
Blanked spectra: ignored 1 integrations
Scan: 16 units: Ta (K) Tsys: 21.48
- Definitely not the same, but maybe RFI?? - Repeat
GBTIDL -> getfs,17,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 16.25
GBTIDL -> getfs,17,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 16.35
GBTIDL -> getfs,17,ifnum=2
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 15.21
GBTIDL -> getfs,17,ifnum=3
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 15.88
GBTIDL -> getfs,17,ifnum=4
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 15.05
GBTIDL -> getfs,17,ifnum=5
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 13.77
GBTIDL -> getfs,17,ifnum=6
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 15.79
GBTIDL -> getfs,17,ifnum=7
Blanked spectra: ignored 1 integrations
Scan: 17 units: Ta (K) Tsys: 20.29
- Repeat; Scan 18. Defintely seems to be a bank-to-bank repeatable pattern here...
GBTIDL -> getfs,18,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 16.12
GBTIDL -> getfs,18,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 16.22
GBTIDL -> getfs,18,ifnum=2
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 15.13
GBTIDL -> getfs,18,ifnum=3
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 15.76
GBTIDL -> getfs,18,ifnum=4
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 15.06
GBTIDL -> getfs,18,ifnum=5
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 14.23
GBTIDL -> getfs,18,ifnum=6
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 15.80
GBTIDL -> getfs,18,ifnum=7
Blanked spectra: ignored 1 integrations
Scan: 18 units: Ta (K) Tsys: 20.22
- Mode 7; Scan 19 - Aborts
- Mode 11; Scan 20
GBTIDL -> getfs,20,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 16.26
GBTIDL -> getfs,20,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 16.26
GBTIDL -> getfs,20,ifnum=2
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 16.36
GBTIDL -> getfs,20,ifnum=3
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 16.28
GBTIDL -> getfs,20,ifnum=4
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 16.50
GBTIDL -> getfs,20,ifnum=5
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 17.01
GBTIDL -> getfs,20,ifnum=6
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 16.59
GBTIDL -> getfs,20,ifnum=7
Blanked spectra: ignored 1 integrations
Scan: 20 units: Ta (K) Tsys: 16.69
- All values of lbw_gain appear to be their defaults - Also for Scan 21!
- Scan 21 - back to Mode 21
GBTIDL -> getfs,21,ifnum=0
Scan: 21 units: Ta (K) Tsys: 16.16
GBTIDL -> getfs,21,ifnum=8
Scan: 21 units: Ta (K) Tsys: 15.05
GBTIDL -> getfs,21,ifnum=16
Scan: 21 units: Ta (K) Tsys: 19.99
GBTIDL -> getfs,21,ifnum=24
Scan: 21 units: Ta (K) Tsys: 17.19
GBTIDL -> getfs,21,ifnum=32
Scan: 21 units: Ta (K) Tsys: 15.55
GBTIDL -> getfs,21,ifnum=40
Scan: 21 units: Ta (K) Tsys: 15.77
GBTIDL -> getfs,21,ifnum=48
Scan: 21 units: Ta (K) Tsys: 17.03
GBTIDL -> getfs,21,ifnum=56
Scan: 21 units: Ta (K) Tsys: 20.45
GBTIDL -> getfs,22,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 15.92
GBTIDL -> getfs,22,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 15.95
GBTIDL -> getfs,22,ifnum=2
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 15.85
GBTIDL -> getfs,22,ifnum=3
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 16.30
GBTIDL -> getfs,22,ifnum=4
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 16.10
GBTIDL -> getfs,22,ifnum=5
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 16.33
GBTIDL -> getfs,22,ifnum=6
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 15.96
GBTIDL -> getfs,22,ifnum=7
Blanked spectra: ignored 1 integrations
Scan: 22 units: Ta (K) Tsys: 21.16
- Try mode 24 - direct analog of Mode 11 (number of channels, etc)
- Scan 24 bank_gain_mode24_lband
GBTIDL -> getfs,24,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 17.33
GBTIDL -> getfs,24,ifnum=8
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 16.13
GBTIDL -> getfs,24,ifnum=16
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 20.95
GBTIDL -> getfs,24,ifnum=24
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 18.49
GBTIDL -> getfs,24,ifnum=32
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 16.69
GBTIDL -> getfs,24,ifnum=40
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 17.00
GBTIDL -> getfs,24,ifnum=48
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 18.39
GBTIDL -> getfs,24,ifnum=56
Blanked spectra: ignored 1 integrations
Scan: 24 units: Ta (K) Tsys: 22.42
- Joe suggests this might be a blanking problem - change the swper to be much longer. Also, but in large blanking values
- Try mode 21 again, longer swper - 8 sec swper and 64 sec integration time
- Scan 25 bank_gain_mode21_lband
BTIDL -> getfs,25,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 16.86
GBTIDL -> getfs,25,ifnum=1
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 16.86
GBTIDL -> getfs,25,ifnum=0
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 16.86
GBTIDL -> getfs,25,ifnum=8
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 16.20
GBTIDL -> getfs,25,ifnum=16
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 20.01
GBTIDL -> getfs,25,ifnum=24
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 17.89
GBTIDL -> getfs,25,ifnum=32
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 16.37
GBTIDL -> getfs,25,ifnum=40
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 16.32
GBTIDL -> getfs,25,ifnum=48
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 17.82
GBTIDL -> getfs,25,ifnum=56
Blanked spectra: ignored 1 integrations
Scan: 25 units: Ta (K) Tsys: 22.33
- Take tp_nocal scans with cal On and then with Cal Off. See what we get there.
- Scan 26 - cal off - abort, and modify script
- bank_gain_mode_21_lband_tpnocal
- Scan 27 - cal off
- Scan 28 - cal on
- In calOn - line is much weaker!
- repeat above two with 200 sec scan lengths
- Scan 29 - cal off
- Scan 30 - cal on
- line strengths look good now.
- Scan 31 - bank_gain_mode21_lband - to try playing with lbw_gain
- Can't get new scripts running - give up at this point.
- 2:50pm - finito!
--
RichardPrestage - 2015-01-13