DELTA 1 DEB (21548)

COSPAR: 1975-052HC | Alt Name: deb Delta 111

Image

Additional Sources

Launch Details

Launch Date

June 12, 1975

Launch Site

AFWTR

Launch Pad

SLC2W

Launch Vehicle

Delta 2910

Orbital Elements

NORAD ID

21548

International Designator

1975-052HC

Epoch

Sat, 04 Jul 2026 04:56:29 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

99.81°

Right Ascension

263.93°

Eccentricity

Calculating...

Argument of Perigee

351.28°

Period

111.13 min

Mean Motion

12.96 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot

3D Visualization

Basic Satellite Info

Name

DELTA 1 DEB

Alternative Name

deb Delta 111

Type

Debris

Status

Space Junk

Owner

GSFC

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 21548U 75052HC  26185.20589809  .00000345  00000-0  11787-2 0  9990

2 21548  99.8099 263.9262 0245754 351.2769  31.7867 12.95766861661664

Source: Celestrak

Summary

Space debris, also known as space junk, encompasses all non-functional objects orbiting Earth such as defunct satellites, spent rocket stages, and fragments from collisions or disintegrations. Over time, this debris can accumulate and create an increasingly hazardous environment in orbit. Even tiny fragments, traveling at extremely high velocities, can inflict significant damage on operational satellites and spacecraft. If left unmanaged, the density of debris raises the risk of catastrophic collisions and further fragmentation, compounding the problem and threatening the safety and sustainability of space activities.

Physical Characteristics

Length

Diameter

Span

Dry Mass

Launch Mass

Shape

N/A

Radar Cross Section

0.0466

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Unknown

Purpose

Unknown

Mission

Unknown

Manufacturer

Unknown

Life Expectancy

Unknown

Bus

Unknown

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.

Latitude

Longitude

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.

Firefly Alpha Returns to Flight After Anomaly | KeepTrack Space Brief

Firefly Aerospace launches return-to-flight Firefly Alpha on March 10 after Flight 6 anomaly. SpaceX also launches EchoStar 25 GEO satellite and multiple Starlink batches this week.

SpaceX Launches 2 Starlink Batches in 48 Hours, Both Coasts | KeepTrack X Report

SpaceX launched Starlink batches from Vandenberg and Cape Canaveral within 48 hours, pushing the active constellation toward 10,000 operational satellites.

Space Brief 28 Dec 2025

Exploring the future of space with concerns on space debris, rapid growth in orbital data centers, and new developments at launch sites.

Space Brief 4 Mar 2025

Today's brief covers the historic lunar touchdown by Firefly Aerospace's Blue Ghost lander, highlights in military space activity, and a reflection on Pearl Young's pioneering legacy at NASA.

Space Brief 21 Oct 2025

Today's brief covers the latest in satellite technology contracts, China's rocket launch ambitions, and new launch authorizations paving the way for space exploration advancements.

X Report 24 Oct 2025

SpaceX achieves a new milestone with its record 139th launch of the year while competition heats up in satellite communications.

Space Brief 7 May 2025

Today's briefing focuses on key developments in military space activities, technological advancements, and strategic challenges faced by the U.S. in space dominance. Notably, the Space Force is expanding its missile warning capabilities, and significant funding discussions are underway.

SpaceX Hits 600th Falcon 9 Launch, NASA SLS Leak Tests Struggle | KeepTrack Space Brief

SpaceX reaches 600th Falcon 9 launch with Starlink 17-13 from Vandenberg. NASA SLS hydrogen leak repairs only partially successful. New book explores forces shaping space.