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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.
R1774
Hobart
Module USN-0097/Start 0.00 GB
- 17:00UT Experiment started OK (Jonny)
- 20:48UT auto stow from 20:26:31 till 20:31:50. Scan 010-2026a may be no good. (Jonny)
- 23:40UT alarm 'Delay through DBBC has changed'. Slow drift visible in the graph, seems to be rebounding now. Will watch it (Lucia)
- 00:56UT DBBC reset. Delay started drifting at around 22:00 UT. Finally decided to reset the DBBC at 00:56 UT. All fine now. (Lucia)
- Power failure at Mt Pleasant 14:00 UT, last good scan of schedule 011-1348 (Lucas)
Yg
Module HOB+0128/ Start 0.00 GB
- 17:00UT Experiment started OK (Jonny)
- 17:00UT Weather conditions not included in ready message! (accidentally sent it before I put them in) (Jonny)
MV003
EXPERIMENT CANCELLED, DATA INVALID AND DELETED
- All antennas are required onsource for valid data so when Katherine had it's problems this caused the whole experiment to start v late (Lucas).
- Procedure library didn't drudge correctly and almost all mode changes were not done from 0400-0720. Procedure library from mv001 was copied over to all sites and the experiment continued. This did not set off an alarm. First scan with correct proc file No0296.
Hobart12
Disk module HOB+118/16000, start position 0.000GBs
- Experiment started late. First scan no0133 @ 0400 UT.
Katherine
Disk module HOB+0130/32000, start position 0.000GBs
- Experiment started late.
- Dbbc required power-cycling;
- system monitor reported LO status UNLOCKED! however after rxmon was restarted this proved to be incorrect.
- Drives did not turn on, was getting error st -8 power on time-out. On HMI “E STOP” was red, indicating that either water or an animal had tripped the emergency stop and needed to call Mick so he could re-start.
- First scan no0133 @ 0400 UT.
* MARK5B time is 0.418.. seconds out of sync with Field system and and cannot be synced despite reboots of FS, MARK5B and dbbc. Attempting to sync the mk5 in fmset results in no change as does '.'. Due to this all data is time-stamped >20us offset (aka 0.418 to an insufficient accuracy) and cannot be correlated. All data will be deleted from modules to make way for MV004 AND MV005.
Yarragadee
Disk module HOB+0128/32000, start position 0.000GBs
- Experiment started late.
- DBBC needed poser cycling.
- First scan no0133 @ 0400 UT.
HOB010
Hobart 26m
VSN OAN+0103, start pos 1842.7 GB
- 1730UT experiment started OK (JS)
- 23:54 UT drive power switched off, via DESK control (remote vdesk operator unaware of current experiment?), power came back up at 23:56 UT and telescope back on scheduled source (Warren)
- 1040UT mk5cn connection error, Halt experiment and restart mk5ho (Note start DIM on
oper@mk5howithDIMino -m0) (JS) - Reestablish at 1119UT
- Scans missed 357-1040 through 357-1119
- 1240UT repeated mk5cn errors, reset mk5ho again (JS)
- lost scans 357-1240 through 357-1255
- NOTE: REcording switched to module MAT+0005 at 1255UT (after mk5ho reset) 692 GB of data recorded here
Hobart 12m
VSN HOB+0097, start pos 10765.4
- 1730UT experiment started OK (JS)
- 2031UT Channels 10 and 12 have negative tsys (only recording x-band though??) (JS)
- 1040UT accidental closure of DIM server while fixing Ho,fixed with full FS reset at 1105UT
- Scans missed 357-1040 through 357-1105
R1771
Hobart
Module WRST-049/Start 0.00 GBs
- Experiment started late due to an issue with the field system on psfshb (Nick).
- First scan 355-1713b at 17:13:19 UT (Nick)
katherine
Module TR-00012/Start 0.00 GBs
- Experiment started late due to an issue with the field system on psfshb (Nick).
- First scan 355-1713b at 17:13:19 UT (Nick)
Yg
Module UVLBI-06/ Start 0.00 GBs
- Experiment started late due to an issue with the field system on psfshb (Nick).
- First scan 355-1713b at 17:13:19 UT (Nick)
RD1613
HOBART 26M
Module HOB+0008/960, start position 0.000 GBs
- Alarm went off for first scan (354-1630a) saying previous source in schedule not reached…' however the telescope was onsource when recording started? (Lucas).
- 21:35 UT ALARM: Large difference between formatter and maser delays. Check for stability of new offset. The difference was -0.556, -0.481, -0.536, -0.525us, -0.493. So it seems stable but it is triggering the alarm it if goes over 0.5. (Lucas).
- 354.22:20 to 355.03:06 UT; fmout-gps steady around 7.38 us (Warren)
- 07:31UT Alarm: previous source not reached… as antenna went into wind stow. Sources missed from 355-0729 to 355-0815 (Liz)
- 08:21 UT wind stowed again affected 355-0821 to 355-0856 (Liz)
MV002
Will be lots of 'onsource status is slewing, and tracking errors'. This is due to 2min scan intervals and is expected.
Hb
Disk HOB+0097/16000, start position 5.256 GBs
- Experiment started okay (Lucas).
Ke
Disk, HOB+0095/16000, start position 4008.193 GBs
- Experiment started okay (Lucas).
Yg
Disk HOB+0042/6000, start position 3.846 GBs
and HOB+0044/6000, start position 0.000 GBs
- Experiment started okay (Lucas).
