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StriX α

StriX α [Synspective]

StriX α is Japanese synthetic aperture radar satellite built by Synspective as a demonstrator for their planned 25 satellite constellation. It features an X-band synthetic aperture radar.

StriX α is a 150 kg satellite, larger than the planned 100 kg operational satellites. The satellite features two deployable panes, one side carrying solar cells, the other carrying the X-band radar antenna.

the StriX satellite constellation can target data with a ground resolution of 1-3 m, single polarized (VV), and a swath width of more than 10-30 km. The StriX observation modes are Stripmap and Sliding Spotlight mode and each satellite has an SAR antenna that is 5 meters in length and stowed during launch. The simple design of the satellites allows for affordable development of the constellation.

The launch of the StriX α prototype was originally planned for 2020 on an Arianespace Vega booster on a shared mission. The lauch was moved to a Rocket Labs Electron KS in late 2020. The Electron payload fairing required modifications to accomodate the satellite.

Synspective is planning a constellation of 25 satellites called StriX, comprised of 100-kilogram satellites capable of imaging at a resolution of one to three meters. By 2022 the company plans to have six satellites in orbit. The company has not set a date by which it hopes to achieve 25 satellites.

Nation: Japan
Type / Application: Earth observation, radar
Operator: Synspective
Contractors: Synspective
Equipment: X-band Radar
Configuration:
Propulsion:
Power: 2 deployable solar arrays, batteries
Lifetime:
Mass: 150 kg
Orbit: 489 km × 511 km, 97.4
Satellite COSPAR Date LS Launch Vehicle Remarks
StriX α 2020-098A 15.12.2020 OnS LC-1A Electron KS

References:

Further StriX missions: