SpaceX Hits 600 Rocket Landings, Wins $175M Mars Deal | KeepTrack X Report
SpaceX's 600th Falcon 9 booster landing coincides with a $175M NASA Mars contract win and the final GPS III satellite launch this week.
GFZ 1 (23558)
COSPAR: 1986-017JE | Alt Name: GFZ-1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
February 19, 1986
Launch Site
Launch Pad
LC1
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
23558
International Designator
1986-017JE
Decay Date
6/23/1999
Basic Satellite Info
Name
GFZ 1
Alternative Name
GFZ-1
Type
Payload
Status
Decayed
Owner
GFZ
Country
Germany
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
GFZ 1, also known as GFZ-1, is a geodesy satellite launched on February 19, 1986, from TYMSC Launch Pad LC1 using the Soyuz-U launch vehicle. The spacecraft has a spherical shape with a diameter of 0.2 meters and was manufactured by KTHR for the German Research Centre for Geosciences (GFZ). Weighing 20 kg at launch and in dry mass, it carries no motor or power systems but is equipped with 60 prism corner cube retroreflectors. The satellite's primary purpose is geodesy and its stable date is April 19, 1995. Its lifetime was four years.
Physical Characteristics
Length
0.2
Diameter
0.2
Span
0.2
Dry Mass
20
Launch Mass
20
Shape
Sphere
Radar Cross Section
0.1139
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
GFZ-1
Purpose
Geodesy
Mission
Geodesy
Manufacturer
KTHR
Life Expectancy
4 years
Bus
GFZ
Configuration
21 cm dia brass body
Motor
None
Equipment
60 prism corner cube retroreflectors
Power System
None
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Brief 19 Jul 2025
Today's highlights include a record-breaking high-altitude image of the sun, SpaceX's latest Starlink satellite launch, and various military developments. Stay informed with detailed updates on launches, reentries, and the latest advancements in drone technology.
Starship V3 Debut Slips as Booster 19 Rolls to Pad 2 | KeepTrack X Report
Starship V3's maiden flight is delayed as SpaceX rolls Booster 19 to Pad 2 for Flight 9, while Falcon 9 completes its 30th mission of 2026.
X Report 11 Jun 2025
SpaceX successfully launched 23 Starlink satellites while facing delays in launching the Axiom Space mission due to a propellant leak. Additionally, new US broadband rules favor Starlink's expansion into rural markets.
Falcon 9 Completes GPS III Constellation for Space Force | KeepTrack X Report
SpaceX's Falcon 9 delivered GPS III SV-10 at 0653 UTC, capping Lockheed Martin's 10-satellite series as SpaceX eyes a $60B AI coding acquisition pre-IPO.
Space Brief 27 Sep 2025
Today's brief covers next-generation missile defense strategies, NASA's Dream Chaser contract updates, and technological advances in Air Force cyber defense.
Space Domain Awareness (SDA)
The evolution from simply tracking objects in orbit to understanding the full strategic picture of who is doing what in space, and why
Space Brief 25 Jul 2025
Today's briefing covers Spire Global's new intelligence products, a significant military buildup in the Pacific, Space Force organizational changes, and more.