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SEDA-AP

SEDA-AP [NASA]

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:

  • AOM (Atmospheric Oxygen Monitor)
  • EDEE (Electronic Device Evaluation Equipment)
  • HIT/PLAM (heavy Ion Telescope / Plasma Monitor)
  • MPAC & SEED (Micro Particle Capturer and Space-Environment Exposure Device)
  • NEM-E (Neutron Monitor Sensor)
  • NEM-S (Neutron Monitor Sensor)
  • PLAM-S (Plasma Monitor)
  • SDOM (Standard Dose Monitor)

SEDA-AP was launched with JEM-EF on Space Shuttle mission Endeavour F23 (STS-127) to the ISS on 15 July 2009, where it was installed on the JEM-EF.

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.

Nation: Japan
Type / Application: Science, ionosphere
Operator: JAXA
Contractors: JAXA
Equipment: GSC, SSC
Configuration: Attached ISS payload
Propulsion: None
Power: Via ISS
Lifetime: 1 year (planned); 6 months reached
Mass: 450 kg
Orbit: 401 km × 407 km, 51.64°
Satellite COSPAR Date LS Launch Vehicle Remarks
SEDA-AP 1998-067PU 15.07.2009 CCK LC-39A Shuttle with Endeavour F23 (STS-127), JEF (JEM-EF), JLE (JEM-ELM-ES), MAXI, ICS-EF, ANDE-2 AA, ANDE-2 PA, Bevo 1, AggieSat2

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