[atlas] Satellite based "last mile" and Atlas probes

Hi Eric,

This gives you the list of probes that have a last-mile median RTT 
(endpoint_type=LM&median__gte=495) higher than 495ms:
https://ihr.iijlab.net/ihr/api/network_delay/?timebin=2021-04-21T00%3A15&endpoint_type=LM&median__gte=495

Looks like probes 55562 and 1000244 are both in US and over satellite.
I don't see the probes tagged with 'Satellite' but some of these probes 
are <200ms to the K-root... 
https://atlas.ripe.net/api/v2/measurements/1001/results/?probe_ids=14943&start=1619136000&stop=1619222399&format=json

Romain

On 4/23/21 12:18 AM, Eric Kuhnke wrote:
> Hello all,
> 
> I am running what I believe to be the only probe on a Starlink satellite 
> connection right now:
> 
> https://atlas.ripe.net/probes/1001821/ 
> <https://atlas.ripe.net/probes/1001821/>
> 
> Is anyone aware of a list of probe ID numbers which are definitively 
> known to be on some form of satellite-based access technology? I am 
> thinking of, for instance, sites on consumer grade geostationary VSATs, 
> more serious VSATs, or in island nations which are not known to have any 
> submarine cables.
> 
> The reason why I am searching for such a list is that I intend to 
> consume some of my accumulated credits to run periodic one-off 
> measurements of latency, traceroutes and other things to quantify 
> improvements in satellite based latency and other performance metrics 
> over time. And to quantify what it looks like when an ISP previously 
> dependent on geostationary (min 495ms latency) gains access to either 
> terrestrial/submarine fiber, or a lower latency low earth orbit based 
> service.
> 
> The best information I can find right now is to manually pick probes 
> which never show below geostationary latency to a first hop in any 
> traceroute, and are located on the probes map in certain island 
> locations. It's a bit more time consuming to manually search for probes 
> in continental locations which are on a VSAT (for instance if anyone 
> knows of a probe on a VSAT terminal in a remote part of Wyoming, USA, 
> let me know...).
> 
>