JAXA's SEDA-AP (Space Environment Data Acquisition Equipment - Attached Payload) was an International Space Station (ISS) based payload to observe and predict the space weather.
SEDA-AP measured space environment (neutrons, plasma, heavy ions, high-energy light particles, atomic oxyen, cosmic dust) In the ISS orbit and environmental effects on materials and electronic devices.
Instruments on board of SEDA-AP were:
SEDA-AP was removed from the JEM-EF to be deorbited in the trunk of Dragon CRS-16, but as the mast could not be retracted, it was eventually released on 21 December 2018 into orbit to reenter naturally.
|Type / Application:||Science, ionosphere|
|Configuration:||Attached ISS payload|
|Lifetime:||1 year (planned); 6 months reached|
|Orbit:||400 km × 400 km, 51.6° (typical)|
|SEDA-AP||1998-067||15.07.2009||CCK LC-39A||Shuttle||with Endeavour F23 (STS-127), JEF (JEM-EF), JLE (JEM-ELM-ES), MAXI, ICS, ANDE-2 AA, ANDE-2 PA, Bevo 1, AggieSat2|