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ALOS-4 is further enhanced from ALOS-2 by equipping the new PALSAR-3 synthetic aperture radar, which employs the new digital beamforming SAR technology. While the observation range in spotlight mode with a resolution of 1 m x 3 m was 25 km square for ALOS-2, ALOS-4 enables observation over a 35 km square area.
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 TÅhoku earthquake and tsunami were among the last major contributions from ALOS. [10] [11]
A motor control center (MCC) is an assembly to control some or all electric motors in a central location. It consists of multiple enclosed sections having a common power bus and with each section containing a combination starter, which in turn consists of motor starter , fuses or circuit breaker , and power disconnect . [ 1 ]
Spacecom paid US$100 million for AMOS-4. The Israeli government paid Spacecom US$265 million generated from a pre-launch deal to supply it with services on AMOS-4 over the satellite's full 12 year life span. AMOS-4 was originally considered as a candidate for launch on a SpaceX Falcon-9 launch vehicle.
The satellite contains a 1.2 GHz synthetic-aperture radar (SAR) sensor that is intended to be used for cartography, monitoring of naval traffic and disaster monitoring of Asia and the Pacific. [3] JAXA initially hoped to be able to launch the successor to ALOS during 2011, but these plans were delayed until 2014 because of budget restrictions.
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.
Universal Satellites Automatic Location System (USALS), also known (unofficially) as DiSEqC 1.3, Go X or Go to XX is a satellite dish motor protocol that automatically creates a list of available satellite positions in a motorised satellite dish setup. It is used in conjunction with the DiSEqC 1.2 protocol.
The cables are wrapped around the final stage and/or satellite, in the manner of a double yo-yo. When the weights are released, the spin of the rocket flings them away from the spin axis. This transfers enough angular momentum to the weights to reduce the spin of the satellite to the desired value. Subsequently, the weights are often released.