ATLAS 2A CENTAUR R/B (25674)

COSPAR: 1999-018B | Alt Name: Centaur AC-154
DECAYED

Image
ATLAS 2A CENTAUR R/B Satellite Image
Additional Sources
Launch Details

Launch Date

April 12, 1999

Launch Pad

SLC36A

Launch Vehicle

Atlas IIAS

Orbital Elements

NORAD ID

25674

International Designator

1999-018B

Decay Date

9/27/2001

Basic Satellite Info

Name

ATLAS 2A CENTAUR R/B

Alternative Name

Centaur AC-154

Type

Rocket Body

Status

Space Junk

Owner

LMA

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

10.1

Diameter

3.1

Span

10.1

Dry Mass

1840

Launch Mass

18600

Shape

Cyl

Radar Cross Section

17.7827

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Centaur IIA AC-154

Purpose

Unknown

Mission

Unknown

Manufacturer

LMA/DENV

Life Expectancy

Unknown

Bus

Centaur

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.

Falcon 9 Booster Sets 33-Flight Reuse Record, X Report 23 Feb 2026

Falcon 9 Booster Sets 33-Flight Reuse Record, X Report 23 Feb 2026

Falcon 9 booster reuse record: SpaceX's most-flown booster flew a 33rd flight Feb 21 with 28 Starlink V2 Minis. Two launches in a day; 9,779 on orbit.

Crew-11 Emergency Evacuation Raises Space Rescue Alarm | KeepTrack X Report

Crew-11 Emergency Evacuation Raises Space Rescue Alarm | KeepTrack X Report

SpaceX Crew-11 made an emergency return from the ISS on Jan. 15 after a medical crisis, spotlighting gaps in space rescue infrastructure.

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.

X Report 9 Mar 2025

X Report 9 Mar 2025

SpaceX reveals plans for Florida Starship launches, NASA teams up for dual missions, and FCC boosts satellite connectivity.

Crew-11 Preps for First-Ever ISS Medical Evacuation, Lufthansa Orders Starlink for 850 Jets | KeepTrack X Report

Crew-11 Preps for First-Ever ISS Medical Evacuation, Lufthansa Orders Starlink for 850 Jets | KeepTrack X Report

Crew-11 prepares for historic first ISS medical evacuation via Crew Dragon. Lufthansa Group to equip all 850 aircraft with Starlink. Starship infrastructure advances at Starbase and Cape Canaveral.

Shimizu's Luna Ring - The Plan to Wrap the Moon in Solar Panels

Shimizu's Luna Ring - The Plan to Wrap the Moon in Solar Panels

A 220-year-old Japanese construction company wants to build an 11,000-kilometer belt of solar cells around the lunar equator and beam the power back to Earth. The physics checks out. Everything else is another story.

Blue Origin's New Glenn Explodes During Ground Test | KeepTrack Space Brief

Blue Origin's New Glenn Explodes During Ground Test | KeepTrack Space Brief

Blue Origin's New Glenn rocket exploded during ground testing May 28, visible from hundreds of miles across Florida. Fireball halts vehicle pending failure investigation.

Space Brief 6 Sep 2025

Space Brief 6 Sep 2025

Today's brief covers China's latest experimental launch to GEO and new commercial satellites, insights from hyperspectral imagery on underground structures, and the Space Force's material testing for Mars missions.