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The examples below assume Katherine running v252ai.
If time permits, make a recording test before starting and check the bit stats and autocorrelations (note this won't work from a fringe-checking schedule):
From the Field System:
proc=v252aike setup01 disk_record=on (wait ~10 sec) disk_record=off scan_check postob
Now start the schedule
schedule=v252aike
During the run, make sure that
Below is an explanation of the current list of items to check during an observation:
onsource
and check the antenna is tracking, which it should be provided a new source command hasn't recently been issued.clkoff
and maserdelay
. These values should be within 0.5 microsecond of each other and stable (i.e. similar results if you issue the commands again). If not, see this entry in the common Problems section for a remedy.mk5=mode?
. The result should agree with the procedure file setting in setup01mk5=dot?
. Make sure it reports a small offset (~<10ms) as the final value, that syncerr_eq_0
and that FHG_on
or FHG_off
depending on whether it is currently recording or not. If not, fmset
may need to be run.To do this, open a terminal on pcfs[hb|ke|yg], and type
fmset
When the interface appears, type
s
then confirm with a
y
Following this, the clocks should all be synchronised and agree with UT. Press the [Esc] key to exit fmset
. Then check the times again:
mk5=dot?
disk_pos
in the field system should report three values - the current number of btyes recorded, bytes at start of previous scan and bytes at start of current scan. If not currently recording, the first and third values should agree. wth
command, which will look like this:\\/#wx#/16.1,1007.9,58.6One difference from IVS observing is that the postob procedure will also pop up a window listing the bit statistics of the recorded data. The observer should check this regularly to make sure it stays at near to the nominal 18/32/32/18 distribution (±2%).
If monitoring from Mt. Pleasant, use pmSTALMke.sh to monitor the alarms. If you want the station alarms to go off when there’s an error (rather than playing a sound through the speakers), use pmSTALMke.newsmerd.sh. I’d recommend changing the title of the terminal window to make it clear which alarms are from which station
See the Current Issues section for known problems and how to fix them.
See also these notes on