DELTA 4 DEMO SPACECRAFT (28500)

COSPAR: 2004-050A | Alt Name: Demosat

Image
DELTA 4 DEMO SPACECRAFT Satellite Image
Additional Sources
Launch Details

Launch Date

December 21, 2004

Launch Pad

SLC37B

Launch Vehicle

Delta 4H

Orbital Elements

NORAD ID

28500

International Designator

2004-050A

Epoch

Thu, 02 Jul 2026 17:13:04 GMT

Apogee

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Perigee

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Inclination

13.87°

Right Ascension

296.77°

Eccentricity

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Argument of Perigee

26.32°

Period

1019.04 min

Mean Motion

1.41 rev/day

Latitude

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Longitude

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Altitude

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Velocity

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Polar Plot
3D Visualization
Basic Satellite Info

Name

DELTA 4 DEMO SPACECRAFT

Alternative Name

Demosat

Type

Payload

Status

Unknown

Owner

BLS

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 28500U 04050A   26183.71740870 -.00000099  00000-0  00000-0 0  9997
2 28500  13.8743 296.7681 2777237  26.3227 329.7779  1.41309956111105

Source: Celestrak

Summary
The DELTA 4 DEMO SPACECRAFT (Demosat) is an instrumented dummy payload satellite operated by BLS and manufactured by BOHB/PFAB for the United States. It was launched on December 21, 2004, from SLC37B at AFETR using a Delta 4H launch vehicle. The cylindrical spacecraft measures 2 meters in length with a diameter of 1.4 meters and span of 2 meters. Its dry mass is recorded as 5993 kg, which is identical to its launch mass. With no specified motor or power source provided, the satellite's primary purpose was to serve as an instrumented dummy payload.
Physical Characteristics

Length

2

Diameter

1.4

Span

2

Dry Mass

5993

Launch Mass

5993

Shape

Cyl

Radar Cross Section

8.8615

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

HLV-OLDSP

Purpose

Instrumented dummy payload

Mission

Instrumented dummy payload

Manufacturer

BOHB/PFAB

Life Expectancy

Unknown

Bus

Demosat

Configuration

Cylinder

Motor

None

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

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