THORAD DELTA 1 R/B(1) (07550)

COSPAR: 1974-094D | Alt Name: Delta 105
DECAYED

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

Launch Date

November 23, 1974

Launch Pad

LC17B

Launch Vehicle

Delta 2313

Orbital Elements

NORAD ID

07550

International Designator

1974-094D

Decay Date

12/8/1989

Basic Satellite Info

Name

THORAD DELTA 1 R/B(1)

Alternative Name

Delta 105

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

6

Diameter

1.4

Span

6

Dry Mass

845

Launch Mass

845

Shape

Cyl + Skirt + Nozzle

Radar Cross Section

21.8638

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Delta SSPU DSV-3P-4

Purpose

Unknown

Mission

Unknown

Manufacturer

MDAC

Life Expectancy

Unknown

Bus

Delta/TR-201

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.

Starship All 6 Engines Fire for 60 Seconds Before Flight 13 | KeepTrack X Report

Starship All 6 Engines Fire for 60 Seconds Before Flight 13 | KeepTrack X Report

SpaceX ignited all 6 Starship engines for a full minute at Starbase, while a Falcon 9 added 24 more Starlinks from Vandenberg on July 1.

X Report 23 Feb 2025

X Report 23 Feb 2025

SpaceX faces a setback with a Falcon 9 upper stage reentry issue, while NASA selects SpaceX for a new mission. Starlink expansions continue with multiple satellite launches.

Space Brief 3 Nov 2024

Space Brief 3 Nov 2024

Today focuses on Blue Origin's preparation for New Glenn's debut, SpaceX Crew-9's ISS maneuver, the importance of U.S.-China cooperation in space, and breathtaking ISS photography.

Space Brief 31 Oct 2024

Space Brief 31 Oct 2024

SpaceX achieves a new launch record with its Starlink mission, NASA's Perseverance rover captures eerie Martian winds, and Buzz Aldrin endorses Trump. Plus, discussions around space debris and military space tech agreements.

X Report 19 Nov 2024

X Report 19 Nov 2024

Starship Flight 6 approaches with a daring booster catch, while SpaceX ramps up satellite launches and navigates regulatory challenges.

SpaceX Launches CAS500-2 and 44 Rideshares, Space Brief 3 May 2026

SpaceX Launches CAS500-2 and 44 Rideshares, Space Brief 3 May 2026

SpaceX CAS500-2 launch success: Falcon 9 flew May 3 at 0700 UTC from Vandenberg with South Korea's imaging satellite and 44 rideshare payloads.

X Report 31 Dec 2025

X Report 31 Dec 2025

Vandenberg Space Force Base opens a new launch site that may accommodate SpaceX's Starship. Meanwhile, Starlink continues to expand its service capabilities.

Jonathan's Space Report

Jonathan's Space Report

Jonathan's Space Report is a comprehensive resource for space launch and satellite data, compiled by astrophysicist Dr. Jonathan McDowell.