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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.
A1524
Station checks performed after A1524 was completed. Pointing came back fine for all 3 and everything else seemed fine. One issue was with Hobart's iread: ifc and ifd power values were a lot higher than they should be. (Ellen)
Hobart
Module: HOB+0121 start pos 4128.7 GB
- 18:00 UT - Experiment started ok except that recording didn't start till it was meant to end and so 3 seconds of the first source we recorded. (Ellen)
- 02:30 UT - disk_pos seems to drift ahead. Now +100 GB. We had changed the recording in order to not loose so much recored data. Now the scans start on the right time, but they are recording too long. This causes several onsource SLEWING alarms. (Lucia)
- 08:08 UT - Disc pos ~ 170 GB ahead. (Ellen)
Katherine
Module HOB+0117 start pos 12610 GB
- 18:00 UT - Experiment started ok.
Yarragadee
Module: HOB+0123 start pos 10680 GB
- 18:00 UT - For some reason recording didn't start for the first scan until AFTER it was meant to finish (even though schedule rolled over perfectly from last experiment) and so stopped as soon as it started. So first scan 168-1800 missed essentially. (Ellen)
A1523
Hobart
Module: HOB+121, Start disk pos: 0 GB
- 1804 UT - Experiment started OK (JS)
- 2215 UT - 31GB deficit (JS)
- 0157 UT - Missed scans 168-0157b through 168-0211 due to module change and mark5 crash. Rebooted and reconfigured dbbc, and power cycled pcfs and mark5 (Ross).
- 15:05 UT - Disk pos ~100 GB behind. (Ellen)
Katherine
Module: HOB+0117, Start disk pos: 8450 GB
- 1804 UT - Experiment started OK (JS)
Yarragadee
Module: HOB+0123, Start disk pos: 7214 GB
- 1804 UT - Experiment started OK (JS)
- 0306 UT - Wind stowed, large storm in area (Ross)
- 0402 UT - Lost communication with antenna, dbbc, field system and mark5 no longer responding (Ross)
- 0456 UT - Schedule resumed, winds still high (40 km/h) but not currently wind stowed. Missed scans 168-0306 through 168-0455 (Ross)
R1692
Hobart 12m:
Disk VSN:OSOD-118 / IAA-0028
Data volume at beginning:0 / 0 GB, schedule at 730 GB.
- pointing: 329.4502 29.6346 -0.00238 0.00285 0.00262 0.00323 1 1 virgoa (Dave)
- Fringes found with Ke on source 3C273. (Dave)
- Fringes found with Ke and Yg on source 1921-293 (Dave)
- 04:00UT: mk5hb crashed after module swap of second bank. Missed scans 167-0333 to 167-0405b. From scan 0410a on recording to module IAA-0028 (0.0 GB). New clock synchronisation set. (Lucia)
- 06:50UT: communication to antenna lost (ERROR reading system clock; TCP/IP connection closed; Mbus error). Connection reset by “antenna=open”. Affected scan: 167-0645. (Lucia)
Katherine 12m:
Disk VSN:IAA-0014/1500
Data volume at beginning:0
- pointing: 336.3554 60.9888 -0.00033 -0.01518 0.00632 0.00260 1 1 virgoa (Dave)
- Fringes found with Hb on source 3C273. (Dave)
- Fringes found with Hb and Yg on source 1921-293 (Dave)
- NB: module is only 1500 GB, whereas expected size of experiment is 1580 GB. This was not noticed until data was on the module. Last 80 GB will need to be transported another way. (Dave) - Liza says the solution will be to swap to the other bank, since no one is a the station today (Lucia).
- 2015.167.11:43:34 ALARM: Delay through DBBC has changed. Monitor for stability and reset DBBC if it drifts.
- 11:56 UT - dbbc rebooted and recording resumed, missed scans 167-1143 through 167-1153 (Ross).
Yarragadee 12m:
Disk VSN:SHAO-010/2000
Data volume at beginning: 0
- pointing: 7.7708 48.3299 0.00370 0.01332 0.01095 0.00600 1 1 virgoa (Dave)
- Fringes found with Hb and Ke on source 1921-293 (Dave)
A1522
Hobart
Module: HOB+130, Start disk pos: 11098 GB
- 19:00 UT - Experiment started OK (vk)
- 23:03 UT - disk_pos already drifting with a 32 GB deficit. This was the same shortage noted at the same time for a1521 (vk)
- 23:53 UT - Restarted Rxmon (vk)
- 06:20 UT - 81 GB deficit (increase from 32 GB at 23:03UT) (JS)
Katherine
Module: HOB+0117, Start disk pos: 4183 GB
- 19:00 UT - Experiment started OK (vk)
- 23:19 UT - All sky cam keeps freezing. I've restarted it 3 times since yesterday (vk)
- 04:09 UT - pps_delay change (6196 to 6195) Keeping an eye on it for now (JS)
Yarragadee
Module: HOB+0123, Start disk pos: 3624 GB
- 19:00 UT - Experiment started OK (vk)
A1521
Hobart
Module: HOB+130, Start disk pos: 7048.2 GB
- Experiment started ok. (JS)
- 00:38 UT - Disk pos drifting. Now ~50GB short (vk)
- 01:47 UT - Mbus error. Fixed with antenna=open, antenna=status. Affected scans: 164-0147 to 164-0152 (vk)
- 02:38 UT - Now 61 GB short (vk)
Katherine
Module: HOB+0117, Start disk pos: 0 GB
- Experiment started ok. (JS)
- 2153UT Antenna stuck alarm. Has to turn drives back on! (JS)
- 2200UT Tracking new source missed/corrupted scans 163-2152 to 163-2200a (JS)
- 2202UT Noticed that generator status is “Not in Auto, off” (JS)
- 2211UT Antenna stuck alarm. Has to turn drives back on! (JS)
- 2200UT Tracking new source missed/corrupted scans 163-2210, 163-2213 (JS)
- 0710UT Alarm: DBBC pps_delay changed; only the last digit. I'll leave it for now. (Lucia)
- DBBC pps signal is slowly drifting over the whole duration of the experiment. (Lucia)
- 1734UT Alarm: DBBC pps_delay changed; only the last digit. I'll leave it for now. (Vasaant)
Yarragadee
Module: HOB+0123, Start disk pos: 0 GB
- Experiment started ok. (JS)
R4691
Hobart
Module VSN: USN-0111 starting disc pos 0 GB
- Experiment started ok. (Ellen)
- 10:43 UT - ALARM: error s5 -104 rfpcn: time-out, connection closed; Monica restarted. (Lucia)
- high Tsys in last two sband channels (Lucia)
Katherine
Module VSN: USN-0042 starting disc pos 0 GB
- Experiment started. (Ellen)
- 8:30 UT; DBBC internal pps was drifting. power-cycled DBBC & fmset. Missed scans 163-0825a and 163-0831a. (Lucia)
- 1328 UT; DBBC internal pps was drifting. power-cycled DBBC & fmset. Missed scans 163-1325 and 163-1331 (JS)
- 1621 UT; DBBC internal pps was drifting. power-cycled DBBC & fmset. Missed scans 163-1613 163-1616 163-1620(JS)
Yarragadee
Module VSN: BKG-0064 starting disc pos 0 GB
- Experiment started. (Ellen)
- 19:25 UT - Windstowed until 21:45. Scans affected: 162-1925 to 162-2145b. It didn't release itself (something I didn't notice earlier because I slept through the alarm :\) but when I tried to release it, the field system stowed again because it thought the wind was too high even though it was only 9km/h. So I had to terminate the field system. Missed scan: 162-2149b (13 GB missing). (Ellen)
- high Tsys in last two sband channels (Lucia)
