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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.
CRDS81
Hobart 26
Module: HOB+0047, 0.0GB
- 17:39 UT - Experiment started OK (JS)
- 17:20 Drivepc restarted in time for experiment (JS)
- 17:20 70K stage at 110, 40k stage at 80, pressure at 4.9 will need vacuuming in the morning (JS)
- 07:22 UT - Jim reported that the received had been cooled. The stages are currently: 79 at 70K and 59 at 20K. (Ellen)
- 07:25 UT - Can't connect to newsmerd on monica so I can't check the He supply pressure. (Ellen)
- 09:39 UT - S/X receiver stages are now at 67 and 53. (Ellen)
- 09:40 UT - Tsys values in bands 01 - 08 are approx 110. This is probably due to the current storm. (Ellen)
- 11:30 UT - Tsys values are back to normal. (Ellen)
- 13:36 UT - Status monitor reporting date as 1969.293.01.48 UT, schedule appears unaffected. (Bryn)
Hobart 12
Module: HOB+0075, 6264 GB
- 17:39 UT - Experiment started OK (JS)
- 09:40 UT - Tsys values all way too high, mostly consistently around 200. This is probably due to the current storm, although Ho system temps are only up to ~110. (Ellen)
- 11:33 UT - X-band has cooled to normal temps but S-band is still too high. (Ellen)
- 16:37 UT - Module ran out of space - no second module to switch to. Experiment Halted. (Bryn)
Katherine Module: NRAO-020 0 GB
- 17:39 UT - Experiment started OK (JS)
Yarragadee
Module: USN-0049, 0.000 GB
- 17:39 UT - Experiment started OK (JS)
R1724
Hobart
Module: HOB+0075, 4745.416 GB
- 17:00 UT - Before observation checklist delays were stated at the wrong time, should have been 16:45UT (Tiege)
- 17:00 UT - Experiment started OK (Tiege)
- 1630UT Log missing ~20min of data due to fs hdd at hobart being full - fixed (JS)
Katherine
Module: GSFC+022, 3095.901 GB
- 17:00 UT - Before observation checklist delays were stated at the wrong time, should have been 16:45UT (Tiege)
- 17:00 UT - Experiment started OK (Tiege)
- 17:01 UT - Delay difference shifted from ~0.3 microseconds to ~0.619 however it seems stable at this delay difference. (Tiege)
- 17:25 UT - Delay continued to drift, halted schedule, Reset the DBBC, restarted observations, missed scans 026-1715b & 026-1721, prior scans likely unreliable. (Tiege)
- 17:39 UT - Drifting happened again, not stabilising after 10+mins, halt schedule and rebooted DBBC, reconfigured and restarted schedule. Missed scans 026-1735b and 026-1738 (Tiege)
- 18:07 UT - Yet again drifting occuring badly, tried doing a hard reboot of the DBBC using the ipswitch, currently monitoring, appears to be still drifting. missed 026-1808b through to 026-1822a (Tiege)
- 18:43 UT - Called Warren (on-call) as delay was still consistently drifting, setup Kathernine again from scratch, reset field system, mk5, dbbc etc. restarted schedule at 19:00 UT, still appears to be drifting, Warren directed me to leave it until the morning. Scans missed 026-1843c through to 026-1854b (Tiege)
- 2210-2229 UT - No data recorded while adjusting maser settings. Modulation turned off & no further clock jumps/slips noted. (JMc)
Yarragadee
Module: USN-0049, 0.000 GB
- 17:00 UT - Before observation checklist delays were stated at the wrong time, should have been 16:45UT (Tiege)
- 17:00 UT - Experiment started OK (Tiege)
- 06:10 UT - Power outage at Yarragadee, requiring restart of computers on site. Missed scans 027-0606 through 027-0638b (Ross)
R4723
Hobart
Module: HOB+0075, 1603.6 GB
18:30 UT - Experiment started OK (Tiege)
- 10:57 UT - Field system PC full so couldn't write to the log file. Noticed when the watchdog alarm sounded. Fixed at 11:17 UT. (Ellen)
Yarragadee
Module: IPA-0022, 0.279 GB
18:30 UT - Experiment started OK (Tiege)
RD1601
Hobart
Module: USN-0036, 0.000 GB
- 17:50 UT - Live page not reporting correct receiver positions or telescope positions, verified with rack cameras (Ross)
- Getting repeated error in erc (every second)
- Error: Cannot get monitor info from antenna (4000058)
- #antcn#Miscellaneous host Socket operation on non-socket
- 18:00 UT - Rebooted PSOS machine using rem_reboot -r rakbus sys26m, and restarted field system (Ross)
- ERROR ch -308 ve total power integrator overflow
- 18:15 UT - Experiment started late with scan 020-1815 (Ross)
- There was an error in vex file frequency setup for some future scans. SNP file was modified, schedule restarted. No loss of data — Jim Lovell 2016/01/20 22:17
- About 16 GB behind expected recorded data — Jim Lovell 2016/01/21 05:36
R1723
Hobart
Module: HOB+0075, 0 GB
17:00 UT - Experiment started OK (Jonathan)
Katherine
Module: USN-0173, 0 GB
17:00 UT - Experiment started OK (Jonathan)
Yarragadee
Module: KAY-0010, 0.000 GB
17:00 UT - Experiment started OK (Jonathan)
R4722
Hobart
Module: HOB+0104, 10720.133 GB
- 18:30 UT - Experiment started OK (Ross)
- 05:50 UT - antenna loast connection. Error '999 TCP/IP connection was closed by remote peer Error return from antenna, see Mbus error'. 'antenna=open' fixed it. I am not sure if any effects on observations. Duration of alrm: 05:47-05:52. (Lucia)
- 06:35UT - log file (r4722hberc.txt) stopped writing. Created r4722hb_econtrol.log (Jonathan)
Katherine
Module: OSOD-117, 115.384 GB
- 18:30 UT - Experiment started OK (Ross)
- 06:35UT - log file (r4722keerc.txt) stopped writing. Created r4722ke_econtrol.log (Jonathan)
Yarragadee
Module: SHAO-020, 0.000 GB
- 18:30 UT - Experiment started OK (Ross)
- 23:15 UT - alarm rings: acu time difference exceeds 0.25 sec between 23:13 & 23:16 UT. All time differences look fine. This should just have been a communications problem to the antenna unit. All fine again now. (Lucia)
- 06:35UT - log file (r4722yg_econtrol.log) stopped writing. Created r4722yg_econtrol_2.log (Jonathan)
