ALOS4
Overview
Advanced Land Observing Satellite-4 (ALOS-4)
The Advanced Land Observing Satellite-4 (ALOS-4) is a successor of the SAR mission of ALOS and ALOS-2. ALOS-4 will be equipped with the phased array type L-band synthetic aperture radar (PALSAR-3).
The observation swath of ALOS-4 will be drastically increased from 50 km (ALOS-2) to 200 km while keeping the high resolution.
Specifications
| Launch | JFY2023 - by H3 launch vehicle |
|---|---|
| Orbit |
Same orbit as ALOS-2
Sun-synchronous sub-recurrent orbit
Altitude: 628km
Inclination angle: 97.9 degree
Local sun time at descending: 12:00 ± 15min.
Revisit time: 14 day (15-3/14 rev/day)
|
| Life time | 7 years |
| Size | X 10.0m x Y 20.0m x Z 6.4m |
| Satellite Mass | ~ 2,990kg |
| Downlink | 1.8/3.6 Gbps (Ka-band) |
| Mission Instruments |
PALSAR-3(Phased Array type L-band Synthetic Aperture Radar-3)
SPAISE3 (SPace based AIS Experiment 3)
|
Coverage of 1 repeat cycle (14days)
ALOS-4 PALSAR-3(200km)
ALOS-2 PALSAR-2(50km)