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2026 May

Daily observation notes published from the eovsadata canonical log.

May 01

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Normal startup this morning. / ACC got stuck, no IDB files from 18:30 to 20:22UT
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / Mark and Charlie are trying to fix it. / Probably it'll take one week of work.
9, 12-13 Ant9, 12-13 need delay corrections.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 02

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 03

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 04

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Normal startup this morning.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / Mark and Charlie are trying to fix it. / Probably it'll take one week of work.
9, 12-13 Ant9, 12-13 need delay corrections.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 05

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Ant1 and Ant12 weren't tracking in the morning. / They started observing at 15:30UT
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / Mark and Charlie are trying to fix it. / Probably it'll take one week of work.
9, 12-13 Ant9, 12-13 need delay corrections.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 06

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 07

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 08

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
3 Ant3 wasn't tracking in the morning. $pcycle at 15:17UT
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / Mark and Charlie are trying to fix it. / Probably it'll take one week of work.
9, 12-13 Ant9, 12-13 need delay corrections.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 09

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Normal startup this morning.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / Mark and Charlie are trying to fix it. / Probably it'll take one week of work.
9, 12-13 Ant9, 12-13 need delay corrections.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 10

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Normal startup this morning.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / Mark and Charlie are trying to fix it. / Probably it'll take one week of work.
9, 12-13 Ant9, 12-13 need delay corrections.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 11

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Normal startup this morning. / Manlight and ROACH5 stopped at 17:50UT
New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / Mark and Charlie are trying to fix it. / Probably it'll take one week of work.
9, 12-13 Ant9, 12-13 need delay corrections.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 12

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Yesterday, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
13 Ant13 is showing completely wrong RA. / All, the other antennas are tracking.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 13

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 14

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 15

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
3 Ant3 got stuck in the morning. $pcycle at 15:28UT
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 16

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

Normal startup today.

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 17

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
5 Ant5 had Az axis lock. Rebooted at 15:10UT
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 18

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
1-6 Ant1-6 had Az axis lock due to high winds overnight. Rebooted at 15:30UT / To test LWA noise interference:
12 and 13 Ant12 and 13 were turned off at 23:20 UT / The other antennas were turned off after the Sunset.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 19

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
12 and 13 Ant12 and 13 aren't working due to an solar power inverter problem. / The inverter problem fixed at 23:00 UT, but
13 Ant13 didn't point correctly, it's showing 00:00 for RA and Dec
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 20

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Normal startup this morning.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 21

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Schedule did not start at sunrise. Observing started at 15:15UT.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 22

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

Normal startup today.

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 23

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

Normal startup today.

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 24

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 25

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
Normal startup today. / Manlight and ROACH5 stopped at 17:30UT
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 26

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 27

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
On May 25th, Manlight and ROACH5 stopped at 17:30UT / ADC boards were swapped between ROACHs 5 and 6 / New delays were set and the solar observations started at 20:05UT
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 28

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 29

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
On May 25th, Manlight and ROACH5 stopped at 17:30UT / ADC boards were swapped between ROACHs 5 and 6.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

Normal startup today.

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 30

Observer: Caius Selhorst

Configuration: ATA feed is on Ant6.

Issues and outages

Time (UT) Antennas Details
2 Ant 2 still out with Dec controller problem.
On May 25th, Manlight and ROACH5 stopped at 17:30UT / ADC boards were swapped between ROACHs 5 and 6.
On May 11th, Manlight and ROACH5 stopped at 17:50UT / New delays were set by the end of the day using Ant1 as reference.
On April 15th, the 27m has a leak in the cryogenic pump / that drained all the helium. / We're waiting for parts.

Observations

Normal startup today.

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.

May 31

Observer: Caius Selhorst

Observations

April 16 to June 5

No Calibrations between April 16th and June 5th due to problems with the 27 m (Leak in the cryogenic pump lines.)

Antenna availability: automatic assessment.