DELTA 1 R/B(2) (09864)

COSPAR: 1977-018B | Alt Name: Delta 129 Stage 3
DECAYED

Image
DELTA 1 R/B(2) Satellite Image
Additional Sources
Launch Details

Launch Date

March 10, 1977

Launch Pad

LC17A

Launch Vehicle

Delta 2914

Orbital Elements

NORAD ID

09864

International Designator

1977-018B

Decay Date

6/10/2019

Basic Satellite Info

Name

DELTA 1 R/B(2)

Alternative Name

Delta 129 Stage 3

Type

Rocket Body

Status

Space Junk

Owner

GSFC

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics

Length

1.7

Diameter

0.9

Span

1.7

Dry Mass

83

Launch Mass

1123

Shape

Sphere + Cone

Radar Cross Section

2.017

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Star 37E S/N 40044

Purpose

Unknown

Mission

Unknown

Manufacturer

THKE

Life Expectancy

Unknown

Bus

Star 37

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

X Report 16 Dec 2025

X Report 16 Dec 2025

SpaceX successfully launched its 100th Falcon 9 flight, deploying 29 Starlink satellites, while NASA plans to test SpaceX’s Starshield. Additionally, SpaceX engages in social media commentary regarding American Airlines' interest in Amazon's Starlink rival.

Space Brief 17 Sep 2025

Space Brief 17 Sep 2025

Highlights include China's recent satellite launch, advancements in nuclear propulsion, non-kinetic tech developments for maritime defense, SpaceX's direct-to-device spectrum tests, and maneuvering satellites for Space Force missions.

Space Brief 25 Jan 2025

Space Brief 25 Jan 2025

Today's Space Brief covers pivotal updates in military space capabilities, defense acquisitions, the UK's nuclear enhancements, and Boeing's financial challenges.

Space Force Modernizes Networks Across 14 Bases, SDA Expands $3.5B Satellite Program | KeepTrack Space Brief

Space Force Modernizes Networks Across 14 Bases, SDA Expands $3.5B Satellite Program | KeepTrack Space Brief

Space Force initiates cybersecurity network upgrades across 14 bases. SDA expands $3.5B Tracking Layer with 72 new satellites. SpaceX and China drive record orbital launches in 2025.

X Report 12 Nov 2025

X Report 12 Nov 2025

SpaceX breaks records with its 94th launch of the year while planning to ramp up Starship production to unprecedented levels.

Space Brief 27 Aug 2025

Space Brief 27 Aug 2025

Today's key space events include SpaceX's launch of the secretive X-37B military drone, XTAR's U.S. defense market strategy, and China's space station AI upgrade.

Northrop Grumman Books $71M Charge on Vulcan Booster Anomaly | KeepTrack Space Brief

Northrop Grumman Books $71M Charge on Vulcan Booster Anomaly | KeepTrack Space Brief

Northrop Grumman takes $71M charge over Vulcan solid rocket booster anomaly, grounding ULA's vehicle. Vulcan manifest timelines now in holding pattern pending resolution.

X Report 21 May 2025

X Report 21 May 2025

SpaceX successfully launched 23 Starlink satellites using a new Falcon 9 rocket, marking a significant milestone for the company as it expands its satellite internet constellation.