Start doing cell location estimates for single observations.
Start doing cell location estimates for single observations.

About 50k out of 970k cells have only a single observation. So far we
didn't do estimates for them at all.

therewillbecode/ichnaea,mozilla/ichnaea,therewillbecode/ichnaea,mozilla/ichnaea,mozilla/ichnaea,mozilla/ichnaea,therewillbecode/ichnaea