Space Brief 21 Apr 2025
Today's briefing highlights SpaceX's recent launch of spy satellites, a US Space Force contract for deep space tracking, and advancements in quantum communications in space.
PROGRESS 7 (11421)
COSPAR: 1979-059A | Alt Name: Progress-7
DECAYED
Image
Additional Sources
Launch Details
Launch Date
June 28, 1979
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
11421
International Designator
1979-059A
Decay Date
7/20/1979
Basic Satellite Info
Name
PROGRESS 7
Alternative Name
Progress-7
Type
Payload
Status
Decayed
Owner
NPOE
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
PROGRESS 7, also known as Progress-7, is an unmanned supply spacecraft designed for resupply missions to space stations. It was launched on June 28, 1979, from the TYMSC launch site using a Soyuz-U launch vehicle at LC31. The satellite has a bus configuration of 7K-TG and measures 7.9 meters in length with a diameter and span of 2.7 meters each. It had a dry mass of 4800 kg and a launch mass of 7250 kg, manufactured by NPOE. The spacecraft's shape consists of a sphere combined with cone, cylinder, and panel elements. Its primary purpose was to carry the Progress 7K-TG No. 107 payload to its destination in space.
Physical Characteristics
Length
7.9
Diameter
2.7
Span
7.9
Dry Mass
4800
Launch Mass
7250
Shape
Sphere + Cone + Cyl + Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Progress 7K-TG No. 107
Purpose
Unknown
Mission
Unknown
Manufacturer
NPOE
Life Expectancy
Unknown
Bus
7K-TG
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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