TELEOS-1 (41169)

COSPAR: 2015-077D | Alt Name: TeLEOS-1
DECAYED

Image
TELEOS-1 Satellite Image
Additional Sources
Launch Details

Launch Date

December 16, 2015

Launch Site

SRILR

Launch Pad

FLP

Launch Vehicle

PSLV

Orbital Elements

NORAD ID

41169

International Designator

2015-077D

Decay Date

6/27/2025

Basic Satellite Info

Name

TELEOS-1

Alternative Name

TeLEOS-1

Type

Payload

Status

Decayed

Owner

AGILS

Country

Singapore

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
TELEOS-1, also known as TeLEOS-1, is an Earth Observation satellite operated by AGILS and manufactured by STESS. It was launched on December 16, 2015, from the SRILR launch site using a PSLV launch vehicle. The satellite has dimensions of 2 meters in length, 1.6 meters in diameter, and spans 4 meters with its deployable components. Its configuration is described as Hex cyl+4 pan, and it weighs 400 kilograms at launch, the same as its dry mass. Equipped with a single electro-optical camera for Earth observation, TELEOS-1 uses four fixed solar arrays to generate power along with onboard batteries. The satellite's mission lifespan is projected to be five years.
Physical Characteristics

Length

2

Diameter

1.6

Span

4

Dry Mass

400

Launch Mass

400

Shape

Hex cyl+4 pan

Radar Cross Section

2.6853

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

TeLEOS-1

Purpose

Earth Observation

Mission

Earth Observation

Manufacturer

STESS

Life Expectancy

5 years

Bus

SS-400

Configuration

Unknown

Motor

Unknown

Equipment

electro-optical camera

Power System

4 deployable fixed solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

X Report 23 Sep 2025

X Report 23 Sep 2025

SpaceX successfully launched the NROL-48 mission, growing the National Reconnaissance Office's satellite fleet. Additionally, NASA introduced ten new astronaut candidates, increasing female representation in its ranks.

Space Brief 5 Dec 2025

Space Brief 5 Dec 2025

Focusing on military satellite initiatives, defense strategies, and advancements in air and cyber capabilities

X Report 5 Aug 2025

X Report 5 Aug 2025

SpaceX successfully launched 28 Starlink satellites while returning to form with Starship testing at Starbase. Meanwhile, preparations for upcoming launches are underway.

Space Brief 4 Jul 2025

Space Brief 4 Jul 2025

Explore today's key space events including China's satellite launch, ULA's Vulcan rocket preparations, significant budget bills from Congress, and discussions on lunar business prospects.

Second Starlink Debris Anomaly in 3 Months | KeepTrack X Report

Second Starlink Debris Anomaly in 3 Months | KeepTrack X Report

A second Starlink satellite malfunction in just over three months has generated on-orbit debris, raising fresh questions about SpaceX's 10,151-strong working constellation.

X Report 20 Mar 2025

X Report 20 Mar 2025

SpaceX successfully rotates Crew-9 and Crew-10 on the ISS and launches new Starlink satellites with direct-to-cell capability.

Falcon Heavy Returns After 18-Month Hiatus, Lofts ViaSat-3 F3 | KeepTrack X Report

Falcon Heavy Returns After 18-Month Hiatus, Lofts ViaSat-3 F3 | KeepTrack X Report

Falcon Heavy completed its 12th flight ever on April 29, ending an 18-month stand-down by lofting the 6-ton ViaSat-3 F3 comsat to GTO.

Space Brief 14 Aug 2025

Space Brief 14 Aug 2025

Today's brief covers the Vulcan Centaur's first mission, military space automation insights, and the retirement reflections of a Space Force leader.