DELTA 2 R/B (25109)

COSPAR: 1997-082F | Alt Name: Delta 251
DECAYED

Image
DELTA 2 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

December 20, 1997

Launch Site

AFWTR

Launch Pad

SLC2W

Launch Vehicle

Delta 7920-10C

Orbital Elements

NORAD ID

25109

International Designator

1997-082F

Decay Date

6/24/1998

Basic Satellite Info

Name

DELTA 2 R/B

Alternative Name

Delta 251

Type

Rocket Body

Status

Space Junk

Owner

BOHB

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

6

Diameter

2.4

Span

9

Dry Mass

919

Launch Mass

6930

Shape

Cyl + Cone

Radar Cross Section

4.4806

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Delta SSPS AJ-10-118K

Purpose

Unknown

Mission

Unknown

Manufacturer

BOHB

Life Expectancy

Unknown

Bus

Delta/0020

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 2 Nov 2025

X Report 2 Nov 2025

SpaceX successfully completed its 100th Starlink mission of the year and launched the 'Haven Demo' private space station along with 17 other satellites. The company also made strides in lunar lander development for Artemis III.

China Opens 2026 With Yaogan and Guowang Satellite Launches | KeepTrack Space Brief

China Opens 2026 With Yaogan and Guowang Satellite Launches | KeepTrack Space Brief

China launches Yaogan spacecraft into unusual orbit and Guowang constellation satellites to start 2026. NASA and DOE plan lunar nuclear reactor by 2030. Space Force switches GPS launch rocket.

SpaceX Launches NROL-105 Spy Satellite in First 2026 National Security Mission | KeepTrack X Report

SpaceX Launches NROL-105 Spy Satellite in First 2026 National Security Mission | KeepTrack X Report

SpaceX launches NROL-105 spy satellite from Vandenberg — first national security mission of 2026. Crew-11 astronauts arrive in Houston after historic first-ever ISS medical evacuation.

X Report 24 Sep 2025

X Report 24 Sep 2025

SpaceX prepares for the launch of significant NASA and NOAA missions, while Starship's 11th test flight edges closer.

Musk Addresses Orbital Data Center Crowding Fears | KeepTrack X Report

Musk Addresses Orbital Data Center Crowding Fears | KeepTrack X Report

Elon Musk pushed back on orbital crowding concerns as SpaceX eyes data centers in space, with 10,584 Starlink satellites currently operational.

Pentagon Gives Anthropic Friday Deadline on AI Policy, Vulcan Still Grounded | KeepTrack Space Brief

Pentagon Gives Anthropic Friday Deadline on AI Policy, Vulcan Still Grounded | KeepTrack Space Brief

Pentagon gives Anthropic Friday deadline to loosen military AI policy. Space Force keeps Vulcan grounded over booster issue. Funding boost speeds missile-tracking satellites.

Lagrange Points

Lagrange Points

Five spots in the Earth-Sun system where the gravitational tug of two massive bodies and the pull of circular motion all cancel out, creating gravitational parking spaces where spacecraft can sit for decades with almost no fuel.

X Report 17 Jun 2025

X Report 17 Jun 2025

SpaceX successfully launched 26 Starlink satellites from California, preparing for upcoming crewed missions to the ISS.