APRIZESAT 4 (35684)

COSPAR: 2009-041D | Alt Name: AprizeSat-4

Image

Additional Sources

Launch Details

Launch Date

July 29, 2009

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC109/95

Launch Vehicle

Dnepr

Orbital Elements

NORAD ID

35684

International Designator

2009-041D

Epoch

Fri, 03 Jul 2026 18:39:53 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

98.14°

Right Ascension

260.43°

Eccentricity

Calculating...

Argument of Perigee

267.68°

Period

97.04 min

Mean Motion

14.84 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot

3D Visualization

Basic Satellite Info

Name

APRIZESAT 4

Alternative Name

AprizeSat-4

Type

Payload

Status

Operational

Owner

SPQ

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 35684U 09041D   26184.77770608  .00000830  00000-0  10555-3 0  9993

2 35684  98.1409 260.4287 0041893 267.6843  91.9574 14.83901692913820

Source: Celestrak

Summary

APRIZESAT 4, also known as AprizeSat-4, is a communication satellite launched on July 29, 2009, from the Tsimlyansky (TYMSC) launch site using the Dnepr launch vehicle. The spacecraft has dimensions of 0.2 meters in length, diameter, and span with a dry mass of 12 kg and was manufactured by SPQ. It is equipped with solar cells and batteries for power supply and features a store-dump payload (all), including an AIS-receiver (#3-10). The satellite's mission involves M2M/IoT communication and traffic monitoring (#3-10). Its operational lifetime is expected to be 5 years, and it was owned by SPQ at the time of launch.

Physical Characteristics

Length

0.2

Diameter

0.2

Span

0.2

Dry Mass

Launch Mass

Shape

Box + Ant

Radar Cross Section

0.1099

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Unknown

Purpose

Communication M2M/IoT (all), traffic monitoring (#3-10)

Mission

Communication M2M/IoT (all), traffic monitoring (#3-10)

Manufacturer

SPQ

Life Expectancy

5 years

Bus

Aprize

Configuration

Unknown

Motor

None

Equipment

Store-dump payload (all), AIS-receiver (#3-10)

Power System

Solar cells, batteries

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.

Vulcan Booster Anomaly Under Scrutiny After USSF-87 Launch | KeepTrack Space Brief

ULA Vulcan faces scrutiny after solid booster anomaly on USSF-87 mission. ThinKom wins portable satellite ground station contract. Space Force starts Project Hecate for GPS past 2040.

The Day America Entered the Space Age

Sixty-seven years ago, a slender rocket carried America's first satellite into orbit, discovering a mysterious feature of our planet that would change our understanding of space forever

X Report 16 Sep 2025

SpaceX continues to make headlines with successful launches and advancements in satellite technology. Notably, a Falcon 9 rocket delivered an upgraded Cygnus spacecraft to the ISS amid a busy launch schedule this week.

X Report 12 Jan 2025

SpaceX concludes a wet dress rehearsal for Starship Flight 7, aiming for the largest rocket launch on January 15 after weather delays.

X Report 26 Dec 2024

Launch of 21 new Starlink satellites, featuring cell phone connectivity, and updates on NASA and SpaceX collaborative missions.

Falcon 9 to Lift Cygnus as Artemis II Hits Midpoint | KeepTrack X Report

Falcon 9 targets ISS Cygnus resupply as Artemis II reaches its halfway mark and SpaceX HLS commitment draws NASA praise.

SpaceX IPO Terms Strip Investor Rights | KeepTrack X Report

SpaceX's reported IPO structure grants Elon Musk unchecked control and forces 220,000-GPU Colossus AI deal into the spotlight.

Space Brief 16 Apr 2025

Today's highlights include Pulsar Fusion's groundbreaking nuclear rocket plans, partnerships for the Haven-1 space station, and a spotlight on military collaboration in quantum technology.