X Report 14 Jul 2025
SpaceX successfully launched the Dror 1 satellite for Israel Aerospace Industries, marking another step forward in their launch capabilities.
STSS DEMO 1 (USA 208) (35937)
COSPAR: 2009-052A | Alt Name: STSS 1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
September 25, 2009
Launch Site
Launch Pad
SLC17B
Launch Vehicle
Delta 7920-10C
Orbital Elements
NORAD ID
35937
International Designator
2009-052A
Decay Date
Unknown
Basic Satellite Info
Name
STSS DEMO 1 (USA 208)
Alternative Name
STSS 1
Type
Payload
Status
Non-operational
Owner
MDA
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
STSS DEMO 1 (USA 208), also known as STSS 1, is an early warning satellite operated by MDA and manufactured by NGAS. It was launched on September 25, 2009, from the AFETR launch site using a Delta 7920-10C launch vehicle at SLC17B. The spacecraft has dimensions of 1 meter in length, 2 meters in diameter, and spans 9 meters. It weighs 1022 kg both at launch and dry mass. Equipped with an AOCS motor for attitude control, the satellite is powered by two deployable solar arrays and batteries. STSS DEMO 1 was designed to last for a planned 2 years but achieved a lifespan of 12 years. Its primary purpose involves early warning through its acquisition sensor and track sensor equipment. The satellite has a box plus pan shape configuration.
Physical Characteristics
Length
1
Diameter
2
Span
9
Dry Mass
1022
Launch Mass
1022
Shape
Box + 2 Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
STSS-Demo 1
Purpose
Early warning
Mission
Early warning
Manufacturer
NGAS
Life Expectancy
2 years (planned); 12 years (achieved)
Bus
T310
Configuration
Unknown
Motor
AOCS
Equipment
Acquisition Sensor, Track Sensor
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Brief 14 Nov 2024
Today's brief covers potential shifts in Space Force's strategy, new milestones in military satellite programs, and advancements in ground systems for missile defense. We'll also highlight Rocket Lab's latest contract win and critical design reviews in drone technology.
Space Brief 13 May 2025
China expands its classified satellite series, Space Force advances cloud-based ground station marketplaces, and the Pentagon grows its satellite network partner list. Highlighting new roles for sensor technology in tracking space debris.
Space Brief 7 Jun 2025
Today's brief covers the latest in satellite launches, military implications in space funding, and notable reentry delays.
X Report 7 Sep 2025
SpaceX launches 24 Starlink satellites, pushing its 2025 total beyond 2,000, while facing community pushback in Florida for its Starship operations.
SaxaVord Spaceport
The UK's orbital ambitions rest on a remote Shetland island. How SaxaVord became Europe's first fully licensed vertical launch spaceport - and why, despite being ready for years, it's still waiting for a rocket that works.
Space Brief 14 Dec 2024
Today’s Space Brief covers significant developments such as SpaceX’s latest Starlink launch, the US Space Force testing modular satellite technology, and key long-range missile tests by the Pentagon.
X Report 2 Dec 2024
SpaceX continues its Starship testing while advancing Starlink deployments, and collaborates on satellite missions with industry partners.