VEGAS Tests 18 September 2013
Goals
- Astronomical tests of Mode 4
Details
- Start at 8:50pm, L-band
- Scans 222-226 AutoPeakFocus
- Scans 227 Lmode4specOffOnExGal - Off
- Scan 228 - Aborting: No data received from vegas_hpc_server
- Scan 229 Lmode4specOffOnExGal - same again. Try turning manager off and on again - goes into Activating for a long time (minutes)
- Scans 230 Lmode4specOffOnExGal - Off
- Scans 231 Lmode4specOffOnExGal - On
- Scans 232 Lmode4specOffOnExGal - Off
- Scans 234-238 AutoPeakFocus 3C295 --->>> Filler stops working at this point!
- Scans 239-240 Lmode4specOffOnCal
- Scan 241 Lmode4specfreswN1961
- Switch to C-band
- Scan 242 - 246 AutoPeakFocus W3OH - baselines are terrible!
- Scan 247-248 Cmode4specOffOnRRL
- Filler starts again - I had a suspended version left running
- Switch back to L-band
- Scan 249 Lmode4specfreswGal20
- Finish at 10:45pm
Data Analysis
N1961
- % cd /home/scratch/rprestag/vegas/TGBT13B_502_1
- % sdfits-test TGBT13B_502_16
- % gbtidl-test
- GBTIDL -> dirin, "TGBT13B_502_16.raw.vegas"
- GBTIDL -> summary
Scan Source Vel Proc Seq RestF nIF nInt nFd Az El
-------------------------------------------------------------------------------
227 N1961 3934.0 OffOn 1 1.420 1 177 1 10.4 20.0
230 N1961 3934.0 OffOn 1 1.420 1 176 1 11.6 20.4
231 N1961 3934.0 OffOn 2 1.420 1 169 1 0.0 0.0
232 N1961 3934.0 OffOn 1 1.420 1 169 1 12.7 21.0
233 N1961 3934.0 OffOn 2 1.420 1 170 1 12.7 21.0
239 3C295 0.0 OffOn 1 1.420 1 20 1 316.5 27.2
240 3C295 0.0 OffOn 2 1.420 1 20 1 316.1 27.9
241 N1961 3934.0 Track 1 1.420 1 138 1 14.5 22.0
247 W3 -40.9 OffOn 1 5.000 1 166 1 35.0 35.9
248 W3 -40.9 OffOn 2 5.000 1 167 1 35.0 35.9
249 Gal20 0.0 Track 1 1.420 1 18 1 225.3 28.0
GBTIDL -> flag, [230,231,232,233],bchan= 16384,echan= 16384, idstring="ADC"
GBTIDL -> sclear
GBTIDL -> getps,230,plnum=0,units="Jy"
Blanked spectra: ignored 2 integrations
Scan: 231 units: Jy tau:0.008 ap_eff:0.710 Tsys: 14.46 14.42
% Program caused arithmetic error: Floating divide by 0
GBTIDL -> accum
GBTIDL -> getps,230,plnum=1,units="Jy"
Blanked spectra: ignored 2 integrations
Scan: 231 units: Jy tau:0.008 ap_eff:0.710 Tsys: 15.25 15.23
% Program caused arithmetic error: Floating divide by 0
GBTIDL -> accum
GBTIDL -> getps,232,plnum=0,units="Jy"
Blanked spectra: ignored 2 integrations
Scan: 233 units: Jy tau:0.008 ap_eff:0.710 Tsys: 7.48 7.01
% Program caused arithmetic error: Floating divide by 0
GBTIDL -> accum
GBTIDL -> getps,232,plnum=1,units="Jy"
Blanked spectra: ignored 2 integrations
Scan: 233 units: Jy tau:0.008 ap_eff:0.710 Tsys: 7.48 6.99
% Program caused arithmetic error: Floating divide by 0
GBTIDL -> accum
GBTIDL -> ave
% ACCUMAVE: Average of : 4 spectra
write N1961raw.ps here
GBTIDL -> nfit, 9
GBTIDL -> setregion
Use the left button to mark the region and the right button to exit
GBTIDL -> baseline
GBTIDL -> boxcar,4
GBTIDL -> setx,3400,4500
GBTIDL -> setx,3000,5000
GBTIDL -> sety, -0.02, 0.1
GBTIDL ->
Postscript file written:
/home/scratch/rprestag/vegas/TGBT13B_502_16/N1961proc.ps
GBTIDL -> tmp_data = getdata()
GBTIDL -> tmp_data = tmp_data*2.54
GBTIDL -> setdata, tmp_data
GBTIDL -> sety, -0.02, 0.2
GBTIDL ->
save N1961scale.ps here
GBTIDL -> getfs, 241, units="Jy"
Blanked spectra: ignored 1 integrations
Scan: 241 units: Jy tau:0.008 ap_eff:0.710 Tsys: 6.33
% Program caused arithmetic error: Floating divide by 0
GBTIDL ->
Postscript file written:
/home/scratch/rprestag/vegas/TGBT13B_502_16/N1961rawFS.ps
GBTIDL -> boxcar,4
GBTIDL -> setx,3000,5000
GBTIDL -> sety,
Postscript file written: gbtidl.print.file.ps
gbtidl.print.file.ps printed on lp
GBTIDL -> sety,0.12,0.19
GBTIDL -> $gv N1961proc.ps
GBTIDL -> sety,0.12,0.24
GBTIDL ->
Postscript file written:
/home/scratch/rprestag/vegas/TGBT13B_502_16/N1961rawFSzoom.ps
GBTIDL ->
Rick's result for comparison
3C295
GBTIDL -> getps,239
Scan: 240 units: Ta (K) Tsys: 5.21 6.01
GBTIDL -> sety,0,5
GBTIDL ->
Postscript file written: /home/scratch/rprestag/vegas/TGBT13B_502_16/3C295raw.p
Gal20
GBTIDL -> getfs, 249
Scan: 249 units: Ta (K) Tsys: 10.24
GBTIDL -> setx, 1410,1430
GBTIDL -> setx, 1.410,1.430
GBTIDL -> setx, 1.415,1.425
GBTIDL ->
Postscript file written: /home/scratch/rprestag/vegas/TGBT13B_502_16/Gal20raw.ps
GBTIDL ->
RRL
GBTIDL -> sclear
GBTIDL -> getps,247,plnum=0
Scan: 248 units: Ta (K) Tsys: 12.29 15.82
GBTIDL -> accum
GBTIDL -> getps,247,plnum=1
Scan: 248 units: Ta (K) Tsys: 13.00 16.40
GBTIDL -> accum
GBTIDL -> ave
% ACCUMAVE: Average of : 2 spectra
GBTIDL -> recombh
GBTIDL -> sety,40,60
GBTIDL -> sety,40,46
GBTIDL -> sety,42,46
GBTIDL -> setx,5.008,5.012
GBTIDL ->
Postscript file written: /home/scratch/rprestag/vegas/TGBT13B_502_16/W3raw.ps
GBTIDL ->
Plots
N1961
3C295
Gal20
W3 (C-band)