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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.
A1528
Hobart 12m:
Disk VSN: HOB+0121
Data volume at beginning: 19448.412 GB
Katherine 12m:
Disk VSN: HOB+0119
Data volume at beginning: 0.000 GB
- 23:01 UT - Antenna lost connection and got stuck during scan, eventually a combination of antenna=open and operate got it working again. Scans affected: 174-2301a to 174-2303b. During next scan (174-2305b) telescope was waiting at limit. (Ellen)
- 03:33 UT - Antenna lost connection again, drives had to be restarted again. No scan missed, but there were tracking errors and the antenna got stuck. Scan affected: 175-0332 to 175-0340. (Ellen)
Yarragadee 12m:
Disk VSN: HOB+0127
Data volume at beginning: 10234.846 GB
R1693
*Hobart 12m:*
Disk VSN: USN-0014
Data volume at beginning: 0
- Pointing OK: xoffset 328.6136 74.5326 -0.00080 -0.00457 0.00810 0.00129 1 1 1921-2
- Exp started OK (Dave)
- 2030 UT: stopped schedule for SpaceX test. Scans 173-2034b – 173-2148a missed. 104 GB lost (Dave)
- Tsys are high (100-140K) in most S and X bands most of the time (Liza)
*Katherine 12m:*
Disk VSN: HAY-0017
Data volume at beginning: 0
- Pointing OK: xoffset 163.1807 74.4275 -0.08263 0.01004 0.02801 0.00616 1 1 1921-293
- Exp started OK (Dave)
- 0910 UT: Clock drifting. DBBC reconfigured. After resuming schedule, field system locked up. Killed 'fs', but could not restart it — it seemed to be caused by some Xauth problem. Restarted pcfske. Scans 174-0909a – 174-0926b (inc) missed. Clock offset stable at ~ -0.280 us. (Dave)
- 1012 UT: minor clock jump. Clock offset now ~ -0.290 us (Dave)
- 1024 UT: wind-stow activated for what appears to be an error. Rebooted windke. Antenna comms then refused to operate. Rebooted antenna system. Restarted fs to get it out of auto-stow loop. Scans 174-1024a and 174-1029a missed. (Dave)
- 1033 UT: Another minor clock jump. (Dave)
- 1101 UT: Another clock jump. Clock seems to be drifting again. Reconfiguring DBBC. Missed 174-1100 and part of 174-1104b (Dave)
- 1218 UT: minor clock jump. Stable at ~ -0.285 us diff. (Dave)
*Yarragadee 12m:*
Disk VSN: HAY-0029
Data volume at beginning: 0
- Pointing OK: xoffset 96.0915 69.9942 0.00598 0.01154 0.00307 0.01576 1 1 1921-293
- Exp started OK (Dave)
a1527
Hb 12m
HOB+0121 ; disk_pos 15936 Gb
- 19:00 UT - Experiment started OK (vk)
- 00:00 UT - pfpcn time-out alarm Restarted Monica (Lucia)
- 04:25 UT - mk5/field system crashed when module of second bank had to be swapped. Missed scans 173-0353 (03:53 UT) to 173-0419b (04:20 UT). Run fmset, so expect clock jump! (Lucia)
Ke 12m
HOB+0117 ; disk_pos 24080 Gb
- 19:00 UT - Experiment started OK (vk)
Yg 12m
HOB+0127 ; disk_pos 7076 Gb
- 19:00 UT - Experiment started OK (vk)
A1526
Hobart
Module HOB+0121 start pos 11713 GB
- 19:00 UT - Experiment started ok. (Ellen)
Katherine
Module HOB+0117 start pos 19898 GB
- 19:00 UT - Experiment started ok. (Ellen)
Yarragadee
Module HOB+0127 start pos 3454 GB
- 19:00 UT - Experiment started ok. (Ellen)
A1525
Hobart
Module: HOB+0121 start pos 7527 GB
Katherine
Module HOB+0117 start pos 15747 GB
Yarragadee
Module: HOB+0127 start pos 0
- Mk5 had a fit as soon as schedule started, likely due to module swap from bank B. The pointers jumped and doubled the amount of data on module HOB+0123, making it too full to record another A15 experiment. Called Jamie. He said to swap out the dodgey module and put the next one in (being a 2TB, the last 32 TB is in bank B) and record to the 32 TB module. A test recording on both showed that the mk5 is now behaving itself. (Ellen)
- 19:45 UT - schedule resumed. First scan recorded 170-1953b, all previous scans missed, corresponding to 143 GB deficient. (Ellen)
r4692
Hobart
Module: UAO-0014 start pos 0.00 GB
- Persistent: Tsys in channels X1, X2, X5, X7, X8, S1-S4 are high, in range 100-120K (Liza)
- Persistent: Signs of RFI in channels X8, S5, S6 in autocorrelation spectra (Liza)
Katherine
Module UAO-0031 start pos 0.00 GB
Yarragadee
Module: USN-0130 start pos 0.00 GB
