Spaceborne Architecture

AOS orbits
Spacecraft: AOS-P1 | AOS-I1 | AOS-I2

Spacecraft acronyms:
  • AOS-P1 - Space Segment Polar
    • 98° inclination (i.e., polar) orbit
    • Sun synchronous
    • 1:30 AM/PM equatorial crossing
  • AOS-I (1 and 2) – Space Segment GPM
    • 65° inclined orbit, similar to GPM (final inclination may be different)
International contributions are marked with flags. Other elements will be provided by NASA/US. Information regarding other candidate architectures considered for this mission.
InstrumentSizeDescription
AOS-P1
Ka + W Doppler RadarMedium satellite radarW band Doppler, Ka band Doppler, 15km swath
Microwave RadiometerSmall satellite radiometer118, 183, 240, 310, 380, 660, 880 GHz
HSRL LidarMedium satellite lidar532nm HSRL, 1064nm backscatter
Multi-angle PolarimeterSmall-medium satellite polarimeter550km swath, 0.5km resolution
TIR SpectrometerSmall satellite spectrometerLong wave infrared
UV-VIS SpectrometerSmall satellite spectrometerShort wave infrared
AOS-I1
W, Ku Doppler RadarSmall satellite radarW band Doppler, Ku band Doppler
CameraSmall satellite cameraStereo camera visible imaging
AOS-I2
Backscatter LidarSmall satellite lidar532nm, 1064nm backscatter
Microwave RadiometerSmall satellite radiometer118, 183, 240, 310, 380, 660, 880 GHz
Multi-angle PolarimeterSmall satellite polarimeter1130km swath, 1km resolution
CameraSmall satellite cameraStereo camera visible imaging
Launch: AOS-I1 and AOS-I2 will launch mid-2028, followed by AOS-P1 in early 2030. Acronyms: HSRL: High Spectral Resolution Lidar; TIR: Terminal Imaging Radar; UV/VIS: Ultraviolet/Visible.