2026 September¶
Daily observation notes published from the eovsadata canonical log.
September 01¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 still out with Dec controller problem. | |
| 12 | Ant12 got stuck due to a bad fuse | |
| 13 | Ant13 lost communications switch/rabbit board | |
| 15 | 04:30 UT Ant 15 star pointing was initiated and ran until 06:00 UT. The / Aug. 31 evening refcal was skipped due to this. |
Antenna availability: automatic assessment.
September 02¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 13 | Antenna 13 was repaired and resumed tracking at 17:30 UT, but its delay calibration was not performed until Sept 4, 2026. | |
| 2 | Ant 2 still out with Dec controller problem. | |
| 12 | Ant12 got stuck due to a bad fuse | |
| 13 | Ant13 lost communications switch/rabbit board | |
| Normal startup today. | ||
| 13 | Ant13 fixed (bad fuse replaced). Back to work at 17:30 UT |
Antenna availability:
| Antenna | Status |
|---|---|
| 1 | used |
| 2 | not_used |
| 3 | used |
| 4 | used |
| 5 | used |
| 6 | used |
| 7 | not_used |
| 8 | used |
| 9 | used |
| 10 | used |
| 11 | used |
| 12 | not_used |
| 13 | not_used |
| 14 | not_used |
| 15 | used |
September 03¶
No observation notes recorded.
Antenna availability: automatic assessment.
September 04¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant 2 still out with Dec controller problem. | |
| 12 | Ant12 got stuck due to a bad fuse | |
| 13 | Ant13 lost communications switch/rabbit board | |
| Normal startup today. / PHASECALs skipped @19:54 UT and 23:14 UT |
Antenna availability: automatic assessment.
September 05¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 12 | Ant12 got stuck due to a bad fuse |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 07¶
A coarse EOVSA baseline correction was applied before the morning refcal. Ant15’s baseline error correction is large—over 7 ns.
Antenna availability: automatic assessment.
September 08¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 12 | Ant12 got stuck due to a bad fuse |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 09¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 12 | Ant12 bad fuse replaced. It's back tracking at 15:46 UT; Ant12 back tracking, bad fuse replaced. | |
| 11 | Ant11 stopped after PHASECAL, $pcycle at 22:35UT | |
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| Normal startup today. | ||
| 11 | Ant11 stopped at 22:30UT after PHASECAL |
Antenna availability: automatic assessment.
September 10¶
Ant12’s new fuse was upside down and blew.
A fine EOVSA baseline correction was applied before the morning refcal. Ant15 received a correction of up to 0.3 ns.
Antenna availability: automatic assessment.
September 11¶
Ant12 fuse was replaced again, it worked for a while but blowed again at 23:30UT.
A fine EOVSA baseline correction was applied before the morning refcal. Ant15 received a correction of up to 0.4 ns.
Antenna availability: automatic assessment.
September 13¶
Ant15 got stuck in EL in the morning.
Antenna availability: automatic assessment.
September 14¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 12 | Ant12 AZ got stuck and blowed the fuse | |
| 15 | Ant15 got stuck in EL in the morning. |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 15¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 12 | Ant12 problem fixed and it started tracking at 17:45UT | |
| 15 | Ant15 came back by itself and it started tracking at 16:05UT |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 16¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber |
Observations
Normal startup today.
Multiple SOLPNTCAL during the morning to find Ant15 focus position.
ROACH2 failed at 22:30UT
Antenna availability: automatic assessment.
September 17¶
No observations due to the ROACH2 failure on Oct 16th.
Antenna availability: automatic assessment.
September 18¶
No observations due to the ROACH2 failure on Oct 16th.
Antenna availability: automatic assessment.
September 19¶
No observations due to the ROACH2 failure on Oct 16th.
Antenna availability: automatic assessment.
September 20¶
No observations due to the ROACH2 failure on Oct 16th.
Antenna availability: automatic assessment.
September 21¶
No observations due to the ROACH2 failure on Oct 16th.
Antenna availability: automatic assessment.
September 22¶
No observations due to the ROACH2 failure on Oct 16th.
Antenna availability: automatic assessment.
September 23¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 12 | Ant12 started tracking at 16:00UT |
Observations
The ROACH2 was fixed. Normal startup today.
Antenna availability: automatic assessment.
September 24¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 13 | Ant13 FEM communication problem. It stopped tracking at 20:30UT |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 25¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 13 | Ant13 FEM communication was fixed. It started tracking at 16:10UT |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 26¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 27¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 28¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 29¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber |
Observations
Normal startup today.
Antenna availability: automatic assessment.
September 30¶
Configuration: ATA feed is on Ant6.
Issues and outages
| Time (UT) | Antennas | Details |
|---|---|---|
| 2 | Ant2 still out with Dec controller problem. | |
| 7 | Ant7 FEM broken fiber | |
| 13 | Ant13 TEC was fixed in the morning. It was back tracking at 17:45 UT |
Observations
Normal startup today.
Antenna availability: automatic assessment.