DELTA 1 DEB (21287)

COSPAR: 1975-052Y | 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

21287

International Designator

1975-052Y

Epoch

Fri, 03 Jul 2026 16:27:44 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

99.73°

Right Ascension

328.66°

Eccentricity

Calculating...

Argument of Perigee

217.54°

Period

109.26 min

Mean Motion

13.18 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 21287U 75052Y   26184.68592778  .00000000  00000-0  99383-4 0  9998

2 21287  99.7346 328.6630 0130432 217.5428 212.6543 13.17957708691715

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

0.242

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.

Pentagon Seeks Commercially Built GEO Spy Satellites | KeepTrack Space Brief

Pentagon's DIU seeks commercial partners for GEO spy satellites. SpaceX unveils space traffic management system. Bahamas rocket landings resume. GPS III falls short in modern warfare.

Space Brief 7 Nov 2025

Today's brief highlights a landmark cooperation between NASA and China to prevent satellite collision, strategic steps in American space leadership through nuclear energy, a U.S. military missile test, and more.

Space Brief 12 Nov 2025

Today's brief covers China's ongoing assessments following a potential debris strike on Shenzhou-20, SpaceX's record-breaking Starlink launch, Rocket Lab's delay of the Neutron rocket, and more.

Lagrange Points

Five spots in the Earth-Sun system where the gravitational tug of two massive bodies and the pull of circular motion all cancel out, creating gravitational parking spaces where spacecraft can sit for decades with almost no fuel.

ESA Buys Dedicated Crew Dragon Mission for 4 Astronauts | KeepTrack X Report

ESA is purchasing a dedicated SpaceX Crew Dragon flight to send 4 European astronauts to the ISS ahead of the station's planned retirement.

X Report 22 Jul 2025

Critical updates from SpaceX include a scrubbed satellite launch and a busy launch schedule for the week, featuring multiple Falcon 9 missions.

Space Force Eyes Space Tugs, On-Orbit Refueling by 2030 | KeepTrack Space Brief

Space Force commits to operational space tugs and on-orbit refueling by 2030. New capabilities will complicate conjunction analysis for GEO and MEO satellite tracking.

SpaceX Targets 600th Falcon Booster Landing, X Report 19 Apr 2026

SpaceX targets its 600th Falcon 9 booster landing on Starlink 17-22, lofting 25 satellites from Vandenberg. Plus a 2028 SpaceX ride for ESA's Mars rover.