| Experiment | End date |
Friend | Result | Problem |
Text |
| EA058B | 2017-10-31 | Jun Yang | Success | None | There were some strong RFIs in the band. Tsys data had large variability. After 18:30 UT, Tsys became stable maybe due to high elevation and/or less human activity. |
| EB063A | 2017-11-01 | Jun Yang | Minor failures | WIND | A problem with Onsala Astro-Flexbuff OS disk was found. To solve the problem during the day time, we stopped the observations shortly at 12:30 UT. This problem should have no impact on the recording after checking the output of scan_check. Due to the strong winds, the 25m radio telescope was stowed during 14:05 - 14:55 UT. |
| EB063B | 2017-11-02 | Jun Yang | Success | None | No known problems. |
| EB063C | 2017-11-03 | Jun Yang | Success | None | No known problems. |
| EC061A | 2017-10-26 | Jun Yang | Success | None | No observations due to a broken chip in the antenna communication system. |
| EC061B | 2017-10-27 | Jun Yang | Failure | ANT | No observations because of a broken chip in the antenna communication system |
| EC062A | 2017-10-26 | Jun Yang | Success | None | After 18:36, Onsala had problem with the antenna control system. This was due to a broken chip. The bad chip was not tracked down until the beginning of the L band part. Thus, Onsala also failed to run all the rest C-band experiments. |
| EC062B | 2017-10-27 | Jun Yang | Success | ANT | No observations due to a broken chip in the antenna communication system. |
| EG078F | 2017-10-31 | Jun Yang | Success | None | No known problems. |
| EG078G | 2017-11-08 | Jun Yang | Success | None | No known problems. |
| EG099A | 2017-10-22 | Onsala | Success | None | No known problems. |
| EG099B | 2017-11-04 | Jun Yang | Success | None | No known problems. |
| EM128C | 2017-11-08 | Jun Yang | Success | None | No known problems. |
| EM130A | 2017-11-01 | Jun Yang | Success | None | No known problems. |
| EM130B | 2017-11-02 | Jun Yang | Minor failures | WIND | No observations after 2:25 UT due to the high winds. |
| EP103E | 2017-10-28 | Jun Yang | Failure | ANT | No chance to run the 25m telescope due to a broken chip in the antenna communication system. |
| EP103F | 2017-11-04 | Jun Yang | Success | None | No known problems. |
| EP107A | 2017-11-07 | Jun Yang | Minor failures | None | The narrow band filter (130 MHz bandwidth) was not used until the morning (7h20m UT). During the earlier part, there were strong RFIs and Tsys data looked quite poor. |
| EP107B | 2017-11-09 | Jun Yang | Minor failures | WIND | No observations after 8:16 UT due to the strong winds. |
| EP107B | 2017-11-09 | Jun Yang | Minor failures | WIND | No observations after 8:16 UT due to the strong winds. |
| ES083 | 2017-11-07 | Jun Yang | Success | None | No observations for about 20 minutes (15h07m - 15h35m)due to an accident click of the button of "stow". |
| ES084A | 2017-10-29 | Jun Yang | Success | None | Used LO=21000 GHz. No known problems. |
| ES084A | 2017-10-29 | Jun Yang | Success | None | Correction: LO=21.000 GHz at Onsala |
| EY029 | 2017-11-06 | Jun Yang | Success | None | No known problems |
| GV023 | 2017-10-20 | Jun Yang | Success | None | The sub-reflector for dual S and X band observations were used. No known problems in the FS log file. |
| N17C3 | 2017-10-25 | Jun Yang | Success | None | No known problems. |
| N17K2 | 2017-10-29 | Jun Yang | Minor failures | None | This NME observations and the next scientific user experiment requested to run the observations at about 21.7 GHz. With the default LO=21.5 GHz, this observing frequency is outside of the valid bandwidth (IF filter: 500 - 1000 MHz). The problem was found after the first ftp-fringe test. To get the right observing window, a new LO value of 21 GHz was used and the schedule was restarted. The telescope was on source again at 13:43:37 UT. After that, fringes to Onsala were found. |
| N17L3 | 2017-10-30 | Jun Yang | Minor failures | ANT | After an intensive investigation, a broken chip was found in the antenna communication system. After replacing the chip at the beginning of the observations, the 25m radio telescope was successfully unstowed. Fringes to Onsala were found right away after the source was tracked. |
| N17SX1 | 2017-10-19 | Jun Yang | Success | None | Fringes to Onsala at 2.3 GHz were weak due to a room temperature receiver. |
| EC061A | 2017-10-26 | JIVE | Failure | None | Could not participate due to technical issues |
| EC061B | 2017-10-27 | JIVE | Failure | None | Could not participate due to technical issues |
| N17L3 | 2017-10-30 | JIVE | Minor failures | None | Communication problem. Joined from scan 6. |
| EY029 | 2017-11-06 | JIVE | Minor failures | None | Slope across band in LCP mostly, increasing with frequency. |
| EC062A | 2017-10-26 | JIVE | Failure | None | Affected strongly by the E-series firmware amplitude issues - LCP band slopes in general, more severe in LCP with jump. |
| EC062B | 2017-10-27 | JIVE | Failure | None | Broken chip in antenna control system meant O8 could not participate. |
| EG078G | 2017-11-08 | JIVE | Failure | None | Affected strongly by the E-series firmware amplitude issues. LCP lower half of band slopes up with increasing frequency. |
| EG078F | 2017-10-31 | JIVE | Minor failures | None | EVN amplitude calibration issue affects this station somewhat here. LCP slopes up with increasing frequency in LCP. |
| EM130B | 2017-11-02 | JIVE | Minor failures | None | Stopped after 2:25UT due to strong winds. |