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OBS (General)
takahiro.sawada - 23:57 Friday 06 June 2025 (34099) Print this report
Set observing bit
At around 18:38 JST on June 6, 2025, Ushiba, Miyoki, and Sawada turned K1:OBS-INTENT on and began our first OBSERVING of the ER17 period.
Comments to this report:
takafumi.ushiba - 19:56 Monday 09 June 2025 (34128) Print this report

We recovered the IFO and turning on the OBS INTENT flag around 19:53 JST.

takafumi.ushiba - 17:47 Tuesday 10 June 2025 (34145) Print this report

We recovered the IFO and turning on the OBS INTENT flag around 17:47 JST.

takafumi.ushiba - 14:24 Wednesday 11 June 2025 (34158) Print this report

We recovered the IFO and turning on the OBS INTENT flag around 14:23 JST.

takafumi.ushiba - 12:02 Thursday 12 June 2025 (34172) Print this report

We recovered the IFO and turning on the OBS INTENT flag around 12:01 JST.

takafumi.ushiba - 18:53 Friday 13 June 2025 (34220) Print this report

We recovered the IFO and turning on the OBS INTENT flag around 18:52 JST.

takafumi.ushiba - 19:53 Tuesday 17 June 2025 (34273) Print this report

We recovered the IFO and turning on the OBS INTENT flag around 19:53 JST.

kenta.tanaka - 23:28 Wednesday 18 June 2025 (34282) Print this report

As discussed in today's report meeting, I left IFO in "READY" state (not CALIB NOT READY because we didn't change any guardian scripts and any foton files and SDFs was already reverted)

takafumi.ushiba - 19:52 Thursday 19 June 2025 (34297) Print this report

We recovered the IFO and turning on the OBS INTENT flag around 19:51 JST.

takahiro.sawada - 9:19 Friday 20 June 2025 (34299) Print this report
We turned off the OBS INTENT flag around 09:11 JST, June 20, 2025.
takahiro.sawada - 19:31 Friday 20 June 2025 (34314) Print this report
We turned on the OBS INTENT flag around 19:29 JST, June 20, 2025.
takahiro.sawada - 15:50 Saturday 21 June 2025 (34330) Print this report
We recovered the IFO and turning on the OBS INTENT flag around 15:22 JST.
shinji.miyoki - 4:22 Monday 23 June 2025 (34343) Print this report

I turned off the OBS INTENT flag around 03:57 JST because of timing lost error issue again reported by Yamamoto-kun. 

dan.chen - 18:52 Friday 27 June 2025 (34397) Print this report

We turned ON the OBS INTENT flag around 18:49 JST, June 27, 2025 after the approval of Ushiba-san.

takahiro.sawada - 19:20 Tuesday 01 July 2025 (34433) Print this report
We turned ON the OBS_INTENT bit at around 17:17 JST on July 1, 2025, following an update to the calibration parameters. There was a lock loss around one minute prior to this due to an earthquake.
takahiro.sawada - 20:16 Friday 04 July 2025 (34472) Print this report
We turned on the OBS INTENT around 18:53 JST, after Friday CAL.
takafumi.ushiba - 10:53 Wednesday 09 July 2025 (34494) Print this report

We turned off the OBS INTENT around 9:09 JST and on it around 10:49 JST for SR3 GAS offload work (klog34492).

takafumi.ushiba - 14:46 Saturday 12 July 2025 (34540) Print this report

We turned on the OBS INTENT around 14:37 JST.
IFO guardian request state was somehow changed to READY around the noon yesterday, so we requested OBSERVING state to IFO guardian.

Since IFO guardian state should be changed according  with the other guardian state and channel values, please do not change IFO guardian state manually.

kenta.tanaka - 14:34 Tuesday 15 July 2025 (34564) Print this report

We turned on the OBS INTENT around 14:29 JST after today's calibration check by Hido-kun.

takafumi.ushiba - 15:37 Thursday 17 July 2025 (34580) Print this report

We turned on the OBS INTENT around 15:35 JST after the commissioning work today.

shinji.miyoki - 8:01 Friday 18 July 2025 (34585) Print this report

We turned off the OBS INTENT around 08:00 JST for CAL work.

takafumi.ushiba - 19:30 Friday 18 July 2025 (34602) Print this report

We turned on the OBS INTENT around 19:29 JST after the weekly calibration work.

shinji.miyoki - 23:28 Sunday 20 July 2025 (34608) Print this report

We turned off the OBS INTENT around 23:27 JST because of troubles of KAGRA locking process.

takafumi.ushiba - 10:22 Monday 21 July 2025 (34613) Print this report

We turned on the OBS INTENT around 10:21 JST after IFO was recovered.

takafumi.ushiba - 14:50 Tuesday 22 July 2025 (34623) Print this report

We turned on the OBS INTENT around 14:50 JST after IFO was recovered.

dan.chen - 17:28 Wednesday 23 July 2025 (34642) Print this report

We turned ON the OBS INTENT around 17:26 JST with Sawada-san.

takafumi.ushiba - 17:50 Friday 25 July 2025 (34673) Print this report

We turned on the OBS INTENT around 17:49 JST after weekly calibration work.

shinji.miyoki - 18:38 Friday 25 July 2025 (34674) Print this report

The earliest start time of OBS ever on Friday. Desirable tendency.

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