ASIASAT 3S (25657)

COSPAR: 1999-013A | Alt Name: Asiasat 3S

Image

Additional Sources

Launch Details

Launch Date

March 21, 1999

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC81/23

Launch Vehicle

Proton-K/DM-2M

Orbital Elements

NORAD ID

25657

International Designator

1999-013A

Epoch

Sat, 04 Jul 2026 01:35:48 GMT

Apogee

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Perigee

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Inclination

9.85°

Right Ascension

54.70°

Eccentricity

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Argument of Perigee

41.42°

Period

1456.41 min

Mean Motion

0.99 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

ASIASAT 3S

Alternative Name

Asiasat 3S

Type

Payload

Status

Non-operational

Owner

ASIA

Country

China(Hong Kong)

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 25657U 99013A   26185.06653071 -.00000125  00000-0  00000-0 0  9996

2 25657   9.8503  54.7030 0004483  41.4198 144.4006  0.98873157 99754

Source: Celestrak

Summary

ASIASAT 3S is a communication satellite, also known as Asiasat 3S, with the NORAD catalog ID of 25657 and OBJECT_ID 1999-013A. Launched on March 21, 1999, from the TYMSC launch site using the Proton-K/DM-2M launch vehicle from Launch Pad LC81/23, it was manufactured by HSES for ASIA (ASIA). The satellite operates in a Box + 2 Pan shape configuration with dimensions of 6 meters length and 3.4 meters diameter, and a span of 26 meters. It has a dry mass of 1300 kg and launch mass of 3463 kg. Equipped with 28 C-band and 16 Ku-band transponders, its power is supplied by two deployable solar arrays and batteries. The satellite's RCS (Reflective Coefficient Surface) value is 25.1189, indicating its reflective surface area. With a mission lifetime of 15 years, ASIASAT 3S serves communication purposes in the Asia region.

Physical Characteristics

Length

Diameter

3.4

Span

Dry Mass

1300

Launch Mass

3463

Shape

Box + 2 Pan

Radar Cross Section

25.1189

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Asiasat 3S

Purpose

Communication

Mission

Communication

Manufacturer

HSES

Life Expectancy

15 years

Bus

HS-601HP

Configuration

HS-601HP

Motor

R-4D-11-300

Equipment

28 C-band, 16 Ku-band transponders

Power System

2 deployable solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map

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