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// optical imaging · 2018

SSTL-S1 4

Earth observation satellite. SSTL-S1 4 was launched on September 16, 2018 aboard a PSLV from Sriharikota. Latest status in GCAT: in orbit.

COSPAR 2018-071ANORAD 43618United Kingdom

Identity

Name in GCAT
S1-4
Common name
SSTL-S1 4
Payload designation
SSTL S1-4
International designator
2018-071A
NORAD catalog number
43618
GCAT identifier
S43618
UN registration
ST/SG/SER.E/876

Mission

Mission type
Optical imaging
Use
Commercial
Program
SSTL
Owner
SSTL (Astrium)
Country
United Kingdom
Builder
Surrey Satellite Technology Ltd/Astrium
Platform (bus)
SSTL-300S1

Launch

Date
September 16, 2018 · 16:38 UTC
Launch record
2018-071Success
Rocket
PSLV
Spaceport
Sriharikota · pad FLP

Orbit and fate

Orbit class (GCAT)
LLEO/S
Perigee
574 km
Apogee
591 km
Inclination
97.82°
Status
In orbit
Last known active
February 2023

Size

Mass
444 kg
Dry mass
400 kg
Length
2.5 m
Diameter
1.00 m
Span
2.5 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q60982412 (CC0).