2025 May¶
Daily observation notes published from the eovsadata canonical log.
May 01¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 08:01 | 79 | 1, 4-8, 12 | Successful Reference calibration for bands < 42. Analysis written to SQL @2025-05-01 08:26 UT. |
| 15:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 19:54 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 02¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 02:24 (May 03) | 60 | 1, 4-8, 12 | Successful Reference calibration for bands \>7 and < 42. Analysis written to SQL @2025-05-02 14:00 UT. |
| 19:54 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 23:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). | ||
| 5 | Ant5 got stuck in the morning. It's rebooted at 15:30 UT | |
| 5 | Ant5 rebooted again at 16:17 UT | |
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 03¶
Observer: Owen Giersch
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 12:32 | 78 | 1, 4-8, 12 | Successful Reference calibration for bands \> 4 and < 43. Analysis written to SQL @2025-05-03 12:57 UT. |
| 15:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 23:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 04¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 12:31 | 79 | 1, 4-8, 12 | Successful Reference calibration for bands < 42. Analysis written to SQL @2025-05-04 12:56 UT. |
| 15:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 19:50 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 05¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Observations
No Calibration due to windscram.
Antenna availability: automatic assessment.
May 06¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 02:15 (May 07) | 60 | 1, 4-8, 12 | Successful Reference calibration for bands < 40. Analysis written to SQL @2025-05-06 14:00 UT. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). / Gain problems in the morning. It's fixed restarting the adc_plot | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 07¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 01:55 (May 08) | 70 | 1, 4-8, 12 | Successful Reference calibration for bands < 41. Analysis written to SQL @2025-05-07 14:00 UT. |
| 23:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 08¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 01:55 (May 09) | 79 | 1, 4-8, 12 | Successful Reference calibration for bands < 40. Analysis written to SQL @2025-05-08 14:00 UT. |
| 15:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 19:34 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 23:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). / Late start this morning (missed morning refcal). | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 09¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 12:27 | 79 | 1, 4-8, 12 | Successful Reference calibration for bands < 42. Analysis written to SQL @2025-05-09 12:52 UT. |
| 15:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 20:24 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 02:17 (May 10) | 38 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 10¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 01:57 | 79 | 1, 4-8, 12 | Successful Reference calibration for bands < 33. Analysis written to SQL @2025-05-10 14:00 UT. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 11¶
Observer: Caius Selhorst
Solar activity: Solar activity is low.
Calibrations
| Start (UT) | Duration (min) | Antennas | Details |
|---|---|---|---|
| 02:19 | 60 | 1, 4-8, 12 | Successful Reference calibration for bands \>7 and < 33. Analysis written to SQL @2025-05-11 14:00 UT. |
| 12:46 | 59 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
| 15:14 | 16 | 1, 4-8, 12 | Successful Phase calibration. Analysis written to SQL. |
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Not too many antennas working today (2,3,9-11,13 are all down). | ||
| 00:00–23:59 | 2 | Ant2 drive is stuck. |
| 00:00–23:59 | 3 | Ant3 isn't working. EL motor failure. |
| 00:00–23:59 | 10 | Ant9-11, 13 are being replaced with an Alt-Az mount |
Antenna availability: automatic assessment.
May 12¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 13¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 14¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 15¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 16¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 17¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 18¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 19¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 20¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 21¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 22¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 23¶
Observer: Caius Selhorst
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 24¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 The Elevation drive gearbox had water in it and had rusted. The / motor has also seized. Awaiting spend permission to replacement gearbox | |
| 4 | Ant 4 FE Temp is sometimes out of range--no solution yet. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| 9-11 and 13 | Ant 9-11 and 13 are currently being replaced with a new antennas. | |
| Still testing new code. For some reason, we are losing antenna connections. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 25¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| Still testing new code. For some reason, we are losing antenna connections. / For some reason, we are losing antenna connections. Ant 1, 4, and 12 all / were in this mode. | ||
| 11 and 12 | Ants 11 and 12 have high hard limits for some reason, and cannot be driven off. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 26¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| Still testing new code. Ants 1 and 7 had the TCP error reported for / yesterday. I fixed Ant 1, but left Ant 7 for Gelu to have a look at. | ||
| 11 and 12 | Ants 11 and 12 have high hard limits for some reason, and cannot be driven off. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 27¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 drive is fixed, but FEM is not installed. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| Still testing new code. / Ant A is in an E-stop mode somehow this morning. No calibration. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 28¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 drive is fixed, but FEM is not installed. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| Ant 1 was down again this morning. We interrupted observing at about 19 UT / and Gelu worked on updating the crio code. At 22:10 UT we are back on the / Sun and I am doing a SOLPNTCAL. It seems to be working on all antennas / except 2 and 3, which are down. However, Ant 9 FEM is down. I can check the / pointing on all other ants (1, 4-8, 10-13). Ah, 7 and 8 stopped responding / in the middle of the SOLPNTCAL, with 2 VIs getting stuck. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 29¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 drive is fixed, but FEM is not installed. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| Normal startup today! Ants 2, 3, and 9 are still down, but others are working. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 30¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 drive is fixed, but FEM is not installed. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| Normal startup today! | ||
| 9-13 | Ant9-13 got stuck in the morning. | |
| 11-13 | Ant11-13 were back @16:00 UT | |
| 9-10 | Ant9-10 were back @17:00 UT / Discovered Ant A DCM was disconnected! No good data possible for past week... / Stopped solar schedule for calibration on 3C84 (18:12 UT) / Completed calibrations and returned to the Sun around 19:40 UT. / Big flare today (M9.8) at 23:30 UT or so. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.
May 31¶
Observer: Caius Selhorst
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 Drive is stuck. Reseated all of the drive control cables and this / cleared error on the controller LCD, but it is still not responding / to remote commands. Azimuth keeps reporting axis lock. | |
| 3 | Ant 3 drive is fixed, but FEM is not installed. | |
| 5 | Ant 5 has low VPOL power probably due to DCM issue | |
| Normal startup today! / Ah, but the 27-m focus mechanism is not moving. Rebooting the Brick did not / fix the problem--must be a hardware failure. Bad timing... / The schedule has been put to mode "No 27-m" | ||
| 10 | Ant10 was shutdown from 16:00 to 20:30UT for electrical rewiring. |
Observations
May 12 - June 05
No calibration during the period, due to the installation of the new antennas.
Antenna availability: automatic assessment.