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Handover notes
Please use this page to write up any notes on anything that needs to be passed on to the next observer or should go into the end of experiment message.
Notes should be placed below the horizontal line as a new blog entry.
Continuing problems should be copied to the Current Issues page.
**Template for Handover notes:**
Be sure to add any specific notes about the experiment if required, for example “Special back end configuration for x reason”. Put as much detail as you can - the more the better.
====== Experiment Name ====== **Hobart 12m** Disk VSN: abc-123 | Data volume at beginning: 2.34 GB * 1300UT a comment from me (user) **Katherine 12m** Disk VSN: | Data volume at beginning: GB * **Yarragadee 12m** Disk VSN: | Data volume at beginning: GB * 1300UT Experiment started okay (JMc).
Format for entering a comment It is important to stick to this formula - there is a good reason we need this information, so please include it!
Time stamp in UT * Comment * (Your Name)
For Example:
20:00UT: Wind stows, Missed scans 012-3456 to 012-3457 (Jim)
20:50UT: Mark5 lost connection, had to restart Mark5 and reconfigure DBBC, called Jamie on call to fix, missed scans 012-3456 to 012-4567 (Jim)
Again - as much detail as you can. It is important to remember that these notes will be sent to the correlator, so please make sure they make sense to others.
Hobart 26m:
Disk position start:
r1650
Fringe checks not performed otherwise started on time.
Hb:
- Frequent error: “Error being ignored: error qk -211 tsys value for device id overflowed or was less than zero.”
- Bands 07 - 12 high, approximately 130 - 140K.
- Recording to BKG+0133.
Ke:
- power failure caused antenna stuck & missed scans: 238-0301 - 238-0333b, @ 03:00-03:40; clkoff reading was wrong. restart mk5 necessary.
- Scans missed/large clkoff: 238-0040b - 238-140b (00:40-01:40 UT). first good scan again: 238-0142 @ 01:42:32
- missed scans occurred after schedule power failure. Generator jumped on, but we got an awkwardly high delay difference.
- Tsys in band 09 greater consistently than 190K.
- Recording to WSRT-049.
Yg:
- eRemote connection failed within 5 minutes of starting and on numerous other occasions for up to half an hour.
- Frequent warnings : “2014.237.19:37:27 WARNING: error s1 -200 odd response from the pic. aborting….” and “2014.237.19:37:29 WARNING: error s1 -201 ifpcn: error response from ifpic, see s1 -200 error for text.”
- Recording to OSOD-054.
CRDS72
Pointing and fringe checks were not performed, otherwise started right in time.
Ho:
- erc Status Monitor window shows wrong time: 1969.264.23.0.00 while it is really (according to formatter, FS, computer) is 2014.233.08.20.00. Execution of commands happens according to real time.
- At around 16:45, cryogenic show signs of warm-up: T(70K phase)=84K, T(20K)=65K, He pressure goes down recently, but currently 305 psi
- Frequent error: “Error being ignored: error qk -211 tsys value for device ic overflowed or was less than zero.” and “Error being ignored: error ch -308 vd total power integrator overflow”
- recording to USN-0109
Hb:
- Peaks autocorrelation bandpasses in ch 14, 15 – RFI
- recording to NRCAN-05
Ke:
- Persistent problem: WARNING: error an -103 pointing computer tracking errors are too large. ; WARNING: error qo -301 warning: onsource status is slewing!
- recording to NRCAN-07
Yg:
- Internet connection is flaky, ERC loses connection every now and then, so often that even filling the checklist is problematic
- Descending slope in the autocorrelation bandpass in channel 15 – RFI
- recording to USN-0205
R1649
Hb: at 15:19:05.13 got error “#trakl#Antenna stuck” while at Az: -234.7825 and El: 29.3014. Tried antenna=open (was okay) then antenna=operate and power on timed-out. Also tried Reset Drives button in HMI and the Drives ON and Operate buttons, but it still wouldn't switch on. Tried restarting the FS and doing all of the above again - which didn't work either. Abandoned schedule as only ~1.5 hrs left and will need someone out at the telescope to manually get it going.
Hb and Yg: 11:18UT noticed channel 10 in autocorrelation spectra sometimes have a funny looking step function rather than being flat.
AUST41+42
Ke:
Module USN+0224 8000 GB was loaded in Bank B but key not turned on! Martin attempting to get there, but probably expect late start….
Recording finally started to USN+0225 at 00:39 after modules sorted. Recorded data is -179 GB short of scheduled, due to late start.
ATTENTION! Looks like module in bank B USN+0224 has bad soft VSN (name too long warning) will need to sort out when there is a substantial gap in scans.
Aust42 commenced on bank B module USN+0224, as above.
Hb:
Recording to HOB+0041 starting at zero GB.
Module changed in A to HOB+0023 6 TB ready for aust42 by Warren on Saturday.
Hb automatically changed to bank A for start of scan 229-0530.
Yg:
Antenna stuck. Not in windstow, elevation brakes wont release. Dave local at yg went out to reset power in pedestal. Still no joy.
Move to Current Issues! Elevation brakes will not release. fs, halt schedule. Need to switch power off in pedestal, open cabinet and switch to maintenance mode. Switch power back on, but this time to hand box control. Should be able to drive by hand. Switch power back over to remote mode. HMI interface should now drive telescope might need to “Reboot Central” in HMI. fs, antenna=open, antenna=operate, resume schedule. Good luck with all of that….
Recorded data is -404 GB short of scheduled, due to late start.
R4648
Anita:
Hb: recording to HOB+0041, starting disk pos 0.16GB. A bit of the usual RFI in the last 2 channels of the autocorrelation spectra.
Ke: recording to UAO-0018, starting disk pos 0.19GB
Yg: recording to IAA-0041, starting disk pos 0.19GB
