DELTA 1 R/B (07946)

COSPAR: 1975-052B | Alt Name: Delta 111

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

Launch Date

June 12, 1975

Launch Site

AFWTR

Launch Pad

SLC2W

Launch Vehicle

Delta 2910

Orbital Elements

NORAD ID

07946

International Designator

1975-052B

Epoch

Sat, 04 Jul 2026 03:40:15 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

99.64°

Right Ascension

79.00°

Eccentricity

Calculating...

Argument of Perigee

328.76°

Period

106.37 min

Mean Motion

13.54 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 111

Type

Rocket Body

Status

Space Junk

Owner

GSFC

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 07946U 75052B   26185.15296090 -.00000010  00000-0  49418-4 0  9991
2 07946  99.6438  79.0007 0045165 328.7569 188.9593 13.53819018737448

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

6

Diameter

1.4

Span

6

Dry Mass

845

Launch Mass

845

Shape

Cyl + Skirt + Nozzle

Radar Cross Section

5.482

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

TR-201

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.

X Report 27 Apr 2025

X Report 27 Apr 2025

SpaceX gears up for two major Starlink launches, while regulatory challenges slow progress in India.

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.

X Report 7 Nov 2025

X Report 7 Nov 2025

SpaceX successfully launched 28 Starlink satellites while EchoStar enhances its stake in the company through a $2.6 billion spectrum deal, amid growing demands for space domain awareness.

X Report 8 Aug 2025

X Report 8 Aug 2025

SpaceX celebrates its 100th launch of the year with a Falcon 9 mission carrying Amazon's Project Kuiper satellites, while Crew-10 prepares for its return from the ISS and the company expands its interplanetary ambitions with new Mars partnerships.

X Report 16 May 2025

X Report 16 May 2025

Today's brief highlights the launch of United Airlines' Starlink Wi-Fi on passenger flights, updates on Starship development, and SpaceX's push to position Starlink as a GPS alternative in recent FCC discussions.

2nd Starlink Debris Event in 3 Months Raises Alarm | KeepTrack X Report

2nd Starlink Debris Event in 3 Months Raises Alarm | KeepTrack X Report

A second Starlink satellite has generated on-orbit debris in just over 3 months, threatening SpaceX's 10,151-satellite working constellation.

Space Brief 10 May 2025

Space Brief 10 May 2025

Today's brief covers Rocket Lab's Neutron being selected for military tests, Space Force's strategic updates, Germany's SAR satellite plans, and a significant NASA nomination.

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.