Young Engineers Satellite sponsored by the European Space Tech. Centre, Noordwijk, with several technology experiments. YES-2/Fotino conducted the space tether for re-entry experiment.

Typical orbit: 544 km x 26625 km at 8 degrees inclination.

• 1997 October 30 - YES - Launch Site: Kourou. Launch Complex: ELA3. Launch Vehicle: Ariane 5. Perigee: 558 km (346 mi). Apogee: 26,604 km (16,530 mi). Inclination: 7.60 deg. Period: 467.70 min.
  Young Engineers Satellite with several technology experiments. Ejected from MAQSAT-H/TEAMSAT.

• 2007 September 14 - YES-2 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 5.00 kg (11.00 lb).
  YES-2/Fotino space tether for re-entry experiment. The YES-2 tether was deployed from the Nauka module at the front end of Foton at 04:47 on 25 September, and releaed at 07:20 after reaching only 8.5 km of the planned 30 km tether length. The 5 kg Fotino reentry capsule separated from the MASS data support system at the end of the tether at around 07:30. The idea was to toss the Fotino against the direction of orbital motion to push it into a lower orbit and re-entry without the need for a retrorocket. Unfortunately the final outcome of the experiment remained unknown.