ALOS-4
| Names | ALOS-4 · Daichi 4 |
|---|---|
| Mission type | Remote sensing |
| Operator | JAXA |
| COSPAR ID | 2024-123A |
| SATCAT no. | 60182 |
| Website | www |
| Mission duration | 351 days, 21 hours, 27 minutes (elapsed) |
| Spacecraft properties | |
| Manufacturer | Mitsubishi Electric |
| Start of mission | |
| Launch date | 1 July 2024, 03:06:00 UTC |
| Rocket | H3-22S |
| Launch site | Tanegashima, LA-Y2 |
| Contractor | Mitsubishi Heavy Industries |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Sun-synchronous |
| Instruments | |
| PALSAR-3: Phased Array Type L-band Synthetic Aperture Radar-3 SPAISE3: SPace based AIS Experiment 3rd | |
Advanced Land Observing Satellite 4 (ALOS-4), also called Daichi 4 (daichi is a Japanese word meaning "great land"), is a 3,000 kg (6,600 lb) Japanese L-band synthetic-aperture radar (SAR) satellite that was launched on July 1, 2024. It carries PALSAR-3 (Phased Array type L-band Synthetic Aperture Radar-3), which is a successor to the PALSAR-2 on ALOS-2 satellite. ALOS-4 is the fourth satellite which carries L-band SAR operated by JAXA, following JERS-1, ALOS, and ALOS-2.