DELTA 1 R/B (04903)

COSPAR: 1971-009B | Alt Name: Delta 82 Stage 3

Image
DELTA 1 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

February 3, 1971

Launch Pad

LC17A

Launch Vehicle

Thor Delta M

Orbital Elements

NORAD ID

04903

International Designator

1971-009B

Epoch

Mon, 20 Jul 2026 06:13:42 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

25.60°

Right Ascension

111.98°

Eccentricity

Calculating...

Argument of Perigee

357.07°

Period

337.59 min

Mean Motion

4.27 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

DELTA 1 R/B

Alternative Name

Delta 82 Stage 3

Type

Rocket Body

Status

Space Junk

Owner

GSFC

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 04903U 71009B   26201.25952131  .00002396  00000+0  92770-3 0  9999
2 04903  25.5975 111.9754 5823129 357.0663   0.6409 04.26558895598787

Source: Celestrak

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

Diameter

0.9

Span

1

Dry Mass

65

Launch Mass

718

Shape

Sphere + Cone

Radar Cross Section

1.7682

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Star 37D S/N 022

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

Map
This tool will help you track the satellite's position and predict its upcoming passes over your location. Simply input the coordinates or click the geolocation button to get started.
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Starship Launch Site Construction Advances at Kennedy Space Center | KeepTrack X Report

Starship Launch Site Construction Advances at Kennedy Space Center | KeepTrack X Report

Starship launch site construction progresses at Kennedy Space Center and Cape Canaveral. Elon Musk trolls Ryanair after budget airline refuses to install Starlink on its fleet.

Space Brief 27 Sep 2025

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 Brief 14 Dec 2024

Space Brief 14 Dec 2024

Today’s Space Brief covers significant developments such as SpaceX’s latest Starlink launch, the US Space Force testing modular satellite technology, and key long-range missile tests by the Pentagon.

Space Brief 30 Aug 2025

Space Brief 30 Aug 2025

Today's briefing covers the latest satellite communications advancements, a secretive military launch by SpaceX, and new space defense organizational structures.

Space Force Cancels OCX GPS Ground System, Space Brief 21 Apr 2026

Space Force Cancels OCX GPS Ground System, Space Brief 21 Apr 2026

Space Force cancels the OCX GPS ground system after RTX failures and stands up a cislunar task force. SpaceX launches the 10th and final GPS III.

Space Brief 2 Apr 2025

Space Brief 2 Apr 2025

DARPA's accidental SpaceX detection highlights Earth as a natural sensor, while SpaceX's Fram2 launches into a polar orbit. Helsinki's defense budget rise hints at increased military satellite activity.

Space Brief 27 Feb 2025

Space Brief 27 Feb 2025

Today's highlights include Rocket Lab's progress on the Space Force's VICTUS HAZE mission, BlackSky's new government contract, and AEI's policy recommendations for Space Force restructuring.

Starship V3 Flight 12 Succeeds Despite Engine Shutdown | KeepTrack X Report

Starship V3 Flight 12 Succeeds Despite Engine Shutdown | KeepTrack X Report

Starship V3 completed Flight 12 on May 22 despite one vacuum Raptor shutting down early, with SpaceX's IPO filing revealing bold Starlink Mobile ambitions.