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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.
R4867
Katherine 12m
Disk VSN: USN-0174/2000/1024 | Data volume at beginning: 0.0 GB
- 1830UT- Experiment started OK (Atifur).
Yarragadee 12m
Disk VSN: OSOD-005/2000/1024 | Data volume at beginning: 0.0 GB
- 1830UT- Experiment started OK (Atifur).
- 2228UT- Yg Log Monitor: Error being ignored: error qk -211 tsys value for device id overflowed or was less than zero. (Jay)
- repeated at 2236, 2238, 2311, 2339, 2350 monitoring tsys for stability
OHG115
Hobart 26m
Disk VSN: CURT+101/6000/1024 | Data volume at beginning: 1633.835 GB
- 1800 UT : Experiment started OK (mas)
- 0540 UT : Formatter to FS time difference 0.5 seconds or greater (Lim)
- 0547 UT : Formatter to FS time difference 0.5 seconds or greater (Lim)
- 0556 UT : Formatter to FS time difference 0.5 seconds or greater (Lim)
- 0559 UT : Formatter to FS time difference 0.5 seconds or greater (Lim)
Katherine 12m
Disk VSN: NRAO-180/2400 | Data volume at beginning: 1050.093 GB
- 1800UT- Experiment started OK (mas).
Yarragadee 12m
Disk VSN: HOB+0025/6000 | Data volume at beginning: 1038.459 GB
- 1800UT - Experiment started OK (mas).
OHG114
Hobart 26m
Disk VSN: CURT+101/6000/1024 | Data volume at beginning: 4952.454147264 GB
- The ifc and ifd were not on default values which lead to a 'error di -101 no default for if input' when 'setupsx' was entered during the setup. Values from the earlier (ohg113) summary file were copied onto the current one to resolve the issue (Prad).
- 1607UT - Large difference between formatter and maser delays (Prad).
- 1730UT - Experiment started OK (Prad).
- 1800UT - Formatter to FS time difference 0.5 seconds or greater. Scan 310-1800 may have been affected (Prad).
- 1914UT - Formatter to fs time difference 0.5 seconds or greater (Prad).
- 2010UT - Formatter to fs time difference 0.5 seconds or greater. Scan 210-2010b may have been affected (Prad).
- 2031UT - error qo -301 warning: Onsource status is slewing (Prad).
- 2111UT - Formatter to fs time difference 0.5 seconds or greater. Scan 310-2111 might be affected (Prad).
- 0207 - Source not reached due to windstow (JMc)
- 0336 - Back on source (JMc) Scans between 0207 and 0336 will not be useful.
- ~0330 Receiver cryogenic pressure high, vacuum pump started (JMc)
- No Tsys readings, reason unclear (JMc)
- Schedule halted at 05:35 due to high winds (JMc)
Katherine 12m
Disk VSN: NRAO-180/2400 | Data volume at beginning: 0 GB
* 1730UT- Experiment started OK (Prad).
Yarragadee 12m
Disk VSN: HOB+0025/6000 | Data volume at beginning: 0 GB
- 1730UT - Experiment started OK (Prad).
- 03:55 - Network laggy, probably running on 3G backup. maser PC inaccessible (JMc)
R1867
Katherine
Disk VSN: | Data volume at beginning: 0.7 GB
- 1530 UT - Large delay has happened again, fixed using 'counter' command (Tiege)
- 1700 UT - Experiment started OK (Tiege)
- 1705 UT - Large delay has happened again, resetting DBBC software now. (Tiege)
- 1710 UT - Back on schedule, first scan 309-1717c (Tiege)
- 1718 UT - Has happened again, resetting DBBC software yet again. Might need to escalate further if it keeps happening. Back on source for 309-1727b (Tiege)
Yarragadee
Disk VSN: | Data volume at beginning: 0.256 GB
- 1700T - Experiment started OK (Tiege)
r4866
Katherine
Disk VSN: USN-0917/2007 | Data volume at beginning: 0 GB
- 1830 UT Experiment started OK (Katie).
- 1130 UT Alarm: Large difference between formatter and maser delays. Have to reconfigure the dbbc. Affected scans: 304-1130 to 304-1151a (Simin)
Yarragadee
Disk VSN: NRAO-175/2400 | Data volume at beginning: 0 GB
- 1830 UT Experiment started OK (Katie).
R1866
Katherine 12m
Disk VSN: USN-0049 | Data volume at beginning: 0 GB
- 1700UT Experiment started okay (JS)
- 2010UT small clock jump, monitoring for stability (JS)
- 2057UT clock offset fluttering around 0.50us. Stable, but this is the alarm threshold. Waiting for scan gap to reset dbbc (JS)
- 2135UT DBBC reset. new offset below alarm threshold (JS)
- scan 302-2134 missing initial 30sec
- 0513UT - Delay drift, going to keep an eye on it to see if it stabilises. (Tiege)
- 0525UT - Continued to drift, have reset DBBC software etc. (Tiege)
- 0530UT - Back on schedule and tracking (Tiege)
Yarragadee 12m
Disk VSN: USN-0036 | Data volume at beginning: 0 GB
- 1700UT Experiment started okay (JS).
