Spaceborne Architecture

AOS orbits
Spacecraft: AOS-Polar | AOS-Inclined | HAWCsat | PMM

NASA-led Spacecraft:
  • AOS-P - Space Segment Polar
  • AOS-I – Space Segment GPM
    • 55° 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-Polar
Ka + W Doppler RadarMedium satellite radarW-band Doppler nadir only, 1.9X1 km horizontal resolution; Ka-band Doppler, 15 km swath, 300-500 m vertical resolution, 2.4 km horizontal resolution
Microwave RadiometerSmall satellite radiometer89-113, 183, 325, 640-700 GHz, 10 km resolution, 750 km swath
HSRL LidarMedium satellite lidar532nm HSRL, 1064nm backscatter lidar, 30 m vertical resolution, 100 m footprint
Multi-angle PolarimeterSmall-medium satellite polarimeter9 bands in the 380 to 1570 nm wavelength range, 0.5 km resolution, 300 km swath, multi-angle
FIR Imaging RadiometerSmall satellite imaging radiometer8 bands in the 4 - 73 µm wavelength range with 1 km resolution, 100 km swath
AOS-Inclined
Microwave RadiometerSmall satellite radiometer89, 183, 325 GHz, 3-10 km resolution, 700 km swath
Backscatter LidarSmall satellite lidar532 nm, 1064 nm backscatter lidar, 60 m vertical resolution, 350 m footprint
HAWCsat
Aerosol Limb ImagersSmall satellite limb imager10 bands in the 610 - 1560 nm wavelength range with 0.25 km vertical resolution, 200 km swath
Water Vapor Limb ImagerSmall satellite limb imager1362.00 – 1368.32 nm wavelength range with 0.13 km vertical resolution, 63 km swath
PMM
Ku Wide-Swath Radar with DopplerSmall satellite radarKu-band Doppler, 500 m vertical resolution, 250 km swath, 5 km horizontal resolution
Microwave RadiometerSmall satellite radiometer89, 183, 325 GHz, 3-10 km resolution, 700 km swath
Launch: AOS-I will launch mid-2028, followed by AOS-P in December 2031. PMM will launch in 2028 and HAWCsat will launch in 2030.