Eric Bellm, it looks like Chris Morrison wrote the following metrics:

• numTotalSolarSystemObjects – the total number of SolarSystemObjects within a detectorVisit
• numAssociatedSsObjects – number of SolarSystemObjects that were associated with new DiaSources for this detectorVisit

Do we need any others?

That seems like a reasonable start. Eventually it would be worthwhile to estimate how many known, detectable SSObjects were actually detected--but that will require more information about the intrinsic brightness of the SSObject that we don't have fully integrated now, I think.

The metrics are now displayed on Chronograf, and have two interesting results:

• There have been no successful associations since solar system data was added on March 1. This is true for both CI datasets.
• The number of solar system objects registered as in-field (and therefore detectable) has fluctuated for HiTS twice, on March 30 [switch to Piff?] and May 4; those for COSMOS have been stable since March 1.

Hi Eric Bellm, can you take a look? In addition to the updates on SQuaSH, there's some docstring fixes in ap_association.

The docstring updates in ap_association look fine. I did not find Squash-related code changes to review, but I can take another look if you point me to the right place.

The catalog metrics dashboard has four new graphs below the fakes metrics. Note that "number of detectable objects" does vary over months-long timescales (different WCS processing?).

From Ian Sullivan on Slack:

I had seen those plots before, and was happy with them. I think it's fine that they are per-CCD, since that will allow us to see in more fine-grained detail whether we are picking up the SSOs.