I think you can see these vessel detections at https://app.skylight.earth/ ("Try out a limited version as a guest") but they seem to be delayed by 48 hours.
VIIRS is very low resolution but you can make out vessels with reasonable accuracy in the night-time images.
VIIRS covers most locations at least once per day, but the other sensors capture a given location only once per 5-10 days (although when combined, Sentinel-1/Sentinel-2/Landsat should provide close-to-daily coverage).
Their motivation is self-serving but I don't think it's so nefarious. They use OpenStreetMap in check-in posts to display map data around locations that Facebook users have visited, so improving OpenStreetMap in turn improves the quality of this feature.
Very cool that they are integrating it with HOT tasking manager and making it easy for anyone to use the editor with the ML-generated proposed objects in several countries. I think the ML has been there for a couple years but currently it's not easy to take advantage of it.
Hopefully they eventually release the ML pipeline itself as well.
It seems like they're just renting OVH dedicated servers (https://www.ovh.com/us/dedicated-servers/hosting/) and selling virtual machines on them. You could get cheaper pricing and more reliable servers by purchasing VPS from OVH directly, or going through a more reputable provider that resells OVH like My Custom Hosting or Luna Node.
- Sentinel-2 (10 m/pixel): https://github.com/allenai/rslearn_projects/blob/master/docs...
- Landsat (15-30 m/pixel): https://github.com/allenai/rslearn_projects/blob/master/docs...
- VIIRS Nighttime Lights: https://github.com/allenai/vessel-detection-viirs
I think you can see these vessel detections at https://app.skylight.earth/ ("Try out a limited version as a guest") but they seem to be delayed by 48 hours.
VIIRS is very low resolution but you can make out vessels with reasonable accuracy in the night-time images.
VIIRS covers most locations at least once per day, but the other sensors capture a given location only once per 5-10 days (although when combined, Sentinel-1/Sentinel-2/Landsat should provide close-to-daily coverage).