I'm looking at the performance of the IMC during ER5 (58.5 days spanning from Jan 15 12:00 - March 15 00:00 UTC) and thought I'd share some stats. I know it's only the IMC, but I think the numbers are quite good since work was continuing at the sites as normal. 

I'm looking at times during this period where the IMC ODC reports the IMC was in a good state. One reason we cared about the state of the IMC during ER5 is because we were using recoloured IMC-F data as GW data in our search pipelines. 

Below I've listed the percentage of time during this 58.5 day period where the IMC was 1) in a good state 2) in a good state for more than 60s 3) in a good state for more than 2048s. This last number corresponds to the length of data we need to run a CBC search. I've listed the time for LHO, LLO and Joint which means 2 detector coincidence (i.e. both were on at the same time). 

|  Segment Length (seconds) | LHO | LLO | Joint |
|          > 0              |89.1%|66.1%| 57.7% |
|          > 60             |88.8%|65.9%| 57.3% |
|          > 2048           |80.7%|63.4%| 50.2% |

Punchline - for ~50% of ER5 we had sufficient coincident IMC data to run a CBC search.