lördag 9 april 2022

Isat - Inmarsat

Innovative Space-based Radar Antenna Technology

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ISAT
ISAT.jpg
ISAT computer model
Mission typeTechnology demonstration
OperatorAFRLDARPASTP
Spacecraft properties
SpacecraftISAT
ManufacturerBoeingLockheed Martin
DimensionsAntena: 300 m (980 ft)
Start of mission
Launch date25 June 2019
RocketFalcon Heavy[1]
Launch siteKSC LC-39A
ContractorSpaceX
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
 

ISAT (Innovative Space-based radar Antenna Technology) is a spacecraft developed by the U.S. Air Force Research Laboratory's Space Vehicles Directorate to test technology for intelligence, surveillance, and reconnaissance spacecraft.[2]

The ISAT program is developing technologies that enable the deployment of extremely large electronically scanning antennas in space, and the metrology and calibration technologies necessary for coherent beamforming from such large antennas. These huge antennas enable the revolutionary performance required to conduct tactical sensing from space, including missions like continuous reliable tracking of surface targets.[3]


https://en.wikipedia.org/wiki/Innovative_Space-based_Radar_Antenna_Technology

GomSpace Sweden

GomSpace to Ship Propulsion Systems to Astrocast

By  | July 13, 2018
Astrocast satellite network. Photo: Astrocast

Astrocast satellite network. Photo: Astrocast

GomSpace Sweden signed a contract with Astrocast, a Swiss nanosatellites provider, to deliver a propulsion system for each of the 10 nanosatellites in the first orbital plane of the new Astrocast constellation. This will be the first propulsion system operating on a constellation of 3U cubsesats.

The contract is a follow-on order to the delivery of propulsions systems for the two precursor satellites, which will be launched this fall. The system will allow Astrocast to more rapidly deploy each satellite to its intended position and will assist in collision avoidance maneuvers.

Astrocast has been deploying nanosatellites to create a global Internet of Things (IOT) network. The order is valued at 450,000 euros and the propulsion systems will be delivered in Q4 2018 and Q1 2019.

Via satellite