IO-117 continues to provide a lot of DX fun for amateur satellite operators. Numerous satellite operators have reported receiving the ARRL’s Worked All States and DX Century Club Satellite awards lately as well as CQ Magazine’s Worked All Zones Satellite award (25 of 40 zones are required for the satellite award). For an example about the distances that can be worked via this satellite in Medium Earth Orbit (MEO), two QSOs got very near the 13,000 km mark recently.

On 11th February 2023, Dave Fisher, KG0D, worked Lucky Bijanki, VU2LBW. The distance between KG0D in CN88kd and VU2LBW in MK82tv is 12,939 km.

Unfortunately for this claim, Hector Martinez Sis, W5CBF, worked Oleg Vakochine, A65BR, on 29th January 2023 at 21:00 UTC. The distance between W5CBF and A65BR is 12,996 km.

Note that only real-time QSOs will be considered for distance records. Under the ARRL’s current interpretation of their award rules, satellite QSOs involving delayed messaging or store-and-forward systems are not valid for WAS, DXCC, or VUCC. Thus, QSOs made over multiple orbits using this method will not be considered for inclusion in the AMSAT Satellite Distance Records archive.

Also please note that the distance calculator at k7fry.com/grid is used to calculate all distances for AMSAT records purposes. This may not provide the most accurate distance under the most recent geodetic datum standards, but it is a consistent reference.

Satellite Records - https://www.amsat.org/satellite-distance-records/