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ALOS-4

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Advanced Land Observing Satellite 4
NamesDaichi 4
Mission typeRemote sensing
OperatorJAXA
COSPAR ID2024-123A Edit this at Wikidata
SATCAT no.60182Edit this on Wikidata
Websitewww.jaxa.jp/projects/sat/alos4/index_j.html
Spacecraft properties
ManufacturerMitsubishi Electric
Start of mission
Launch date1 July 2024 UTC (planned)[1]
RocketH3-22S
Launch siteTanegashima LP2
ContractorMitsubishi Heavy Industries
Orbital parameters
Reference systemGeocentric
RegimeSun-synchronous
Instruments
PALSAR-3: Phased Array Type L-band Synthetic Aperture Radar-3
SPAISE3: SPace based AIS Experiment 3rd
← ALOS-3

Advanced Land Observing Satellite 4 (ALOS-4), also called Daichi 4, is a 3,000 kg (6,600 lb) Japanese synthetic-aperture radar (SAR) satellite planned to be launched in July 2024. It is a successor to the ALOS-2 satellite, which carries the PALSAR-2 sensor. ALOS-4 will be the fourth SAR satellite operated by the Japanse space agency, following JERS-1, ALOS, and ALOS-2.

Monitoring of disasters

Following the 2024 Noto earthquake, ALOS-2 conducted observation of the Noto Peninsula, which took one week to complete. ALOS-4 meanwhile will be capable of observing the same swath by passing overhead of the area only once.[2]

See also

References

  1. ^ "Launch Time and Launch window of the Advanced Land Observing Satellite-4 "DAICHI-4" (ALOS-4) aboard the third H3 Launch Vehicle (H3 F3) [Rescheduled]" (Press release). JAXA. June 29, 2024. Retrieved July 1, 2024.
  2. ^ "Advanced Land Observing Satellite-4 PRESS KIT" (PDF) (in Japanese). JAXA. June 28, 2024. Retrieved 2024-07-01.
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