TGBT18B_502_12 - New HBW Inco. BOF Files Astronomical Commissioning
Test new 800 MHz and 1500 MHz incoherent dedispersion BOF files. Will use J1713+0747 at L-Band. All scans will be 450 seconds long and will include cal, fold, and search mode data.
Note that an fftshift value of 55555557 will be used.
Session begins at 03:15.
Switched vegas.conf to version with new BOF file names and fftshift value at 03:18.
Submitted SB at 03:19
First scan starts at 03:27
i0800x0064 scan looks OK in VEGAS. Levels could be a bit lower in GUPPI and VEGAS but should be OK
Bandpass in guppi_monitor looks OK but pulsar is not detected with GUPPI.
GUPPI OBSNCHAN was stuck at 256. Submitted a
and trying again
and a GUPPI systems restart but OBSNCHAN kept getting set to 256. This is also the value in
Resubmitted i0800x0064 scan and continuing even though GUPPI OBSNCHAN is wrong.
Levels look OK
VEGAS aborted for some reason.
Trying again with i0800x0064
VEGAS seemed OK
Moving on to i0800x0128
Levels are a little high in GUPPI. VEGAS could be a little lower, too.
Tried manually changing OBSNCHAN in
for GUPPI. But it reset back to 256.
I0800x0256 looks OK. Again, levels could be a bit lower, but are acceptable
i0800x0512 also looks OK. VEGAS levels could be a bit lower but GUPPI looks good. GUPPI OBSNCHAN is OK now.
Operator had to move to snowdump at 04:49. Finished up through i0800x0512 fold mode scan.
Sounds like it might be a while. Switched vegas.conf back to release. Rob will call if snow slows down and we can observe again.
GUPPI OBSNCHAN doesn't match VEGAS in i0800x0064, i0800x0128
Session was cut short by snow. Will need to pick back up with i0800x1024.
This topic: CICADA
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