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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.
Only 52 of 4,300 images of Japan could be updated based on data from ALOS. [4] [5] Then, JAXA announced the problem was solved. [6] ALOS was used to analyze several disaster sites. [7] [8] [9] Images of the devastated Japanese coast following the 2011 Tōhoku earthquake and tsunami were among the last major contributions from ALOS. [10] [11]
Although the predecessor ALOS satellite had featured 2 optical cameras in addition to L-band (1.2 GHz/25 cm) radar, ALOS-2 had optical cameras removed to simplify construction and reduce costs. The PALSAR-2 radar is a significant upgrade of the PALSAR radar, allowing higher-resolution (1 x 3 m per pixel) spotlight modes in addition to the 10 m ...
Maria Alos (1973–2011), interdisciplinary artist; Ricardo Alós (1931 – 2024), Spanish professional footballer; Carlos Alós-Ferrer (born 1970), Spanish neuroeconomist, decision theorist, and game theorist
ALOS 2 SAR (Synthetic Aperture Radar) satellite was launched in May 2014. The ALOS-3 satellite was aboard a H3 rocket in March 2023, but the satellite was lost in a launch failure when the second stage failed to ignite. ALOS-4, 2's SAR successor, was launched successfully in July 2024. A true successor to ALOS-3 is planned to launch around 2027.
Changed from the originally manifested ALOS-4 due to the launch failure of H3-TF1 / ALOS-3. First successful flight of the H3 launch vehicle. Separation of VEP-4 was performed after the deorbit burn of the second stage. 17 February 12:05 [44] GSLV Mk II: F14: Satish Dhawan SLP: ISRO: INSAT-3DS [45] ISRO: Geosynchronous: Meteorology: In orbit ...
ALOS-3 carried OPS (OPtical Sensor), a multi-band optical camera which is an upgrade from the PRISM sensor. [2] OPS was capable of observing a 70-kilometer (43 mi) wide strip of land on Earth. [ 5 ] In addition to the RGB and infrared band covered by the predecessor ALOS satellite, ALOS-3 has two additional bandwidths: coastal and red edge.
ALOS-4 (Daichi 4) JAXA: Low Earth Earth observation: In orbit: Operational First Operational flight of H3 rocket. ALOS-4 (Daichi 4) will replace the ALOS-2 (Daichi 2) satellite, which was launched in 2014. 3 July 08:55 [3] Falcon 9 Block 5: Starlink Group 8-9 Cape Canaveral SLC-40: SpaceX: Starlink × 20 SpaceX: Low Earth: Communications: In ...