SSTL S1-4

Launch data:

Spacecraft data:

Description:

• SSTL S1-4 (Surrey Satellite Technology Ltd) is designed, together with other satellites part of DMC3 constellation to provide unparalleled 1 metre high resolution imagery with high speed downlink and 45 degrees off-pointing. The orbiter has a mass of 450 kg and is capable of acquiring multiple targets in one pass, utilizing spot, strip and mosaic imaging modes and 45 degree off-pointing agility for a range of applications including urban planning, agricultural monitoring, land classification, natural resource management and disaster monitoring.

Mission details:

• India launched a PSLV Core-Alone variant on Sep 16, 2018 carrying two commercial payloads built by Surrey Satellite Technology. NovaSar-S is a 445 kg experimental imaging radar satellite; it carries a 3m x 1m S-band (3 GHz) radar and a xenon ion propulsion system.
• The S1-4 satellite uses the same design as the earlier DMC3 imaging constellation and will supplement it; they operate in almost the same orbital plane. The data from the constellation is used by the Beijing-based company 21AT.

External links:

• Satellite tracking (n2ya.com): Real time satellite tracking