Hi Eric!

I'm not aware about such list but I would use API to get list of all probes and 
look for tags with "satellite" or "sat" in name. Checking first hop can be 
tricky because this first hop can be local router with RTT <1ms and second hop 
can indicate that we are on satellite connectivity. For that API for sure API 
must be used. Here is the full list of build in measurements: 
https://beta-docs.atlas.ripe.net/built-in/reference.html#traceroute-5-000-6-999 
+ build in ping tests for 1st and 2nd hop are respectively measurement #1 and 
#2.

Regards,
Grzegorz

From: Eric Kuhnke <[email protected]>
Date: Thursday 2021-04-22 at 17:19
To: "[email protected]" <[email protected]>
Subject: [atlas] Satellite based "last mile" and Atlas probes

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://urldefense.com/v3/__https:/atlas.ripe.net/probes/1001821/__;!!GjvTz_vk!DI_IF58ljPZGyBfvrBuCqzI_b8BjXFQYsN5iY-b4H4cWPot9HcTFhbGD3LIld6o$>

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...).


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