ASTRA 1G (25071)

COSPAR: 1997-076A | Alt Name: Astra 1G

Image
ASTRA 1G Satellite Image
Additional Sources
Launch Details

Launch Date

December 2, 1997

Launch Pad

LC81/23

Launch Vehicle

Proton-K/DM-2M

Orbital Elements

NORAD ID

25071

International Designator

1997-076A

Epoch

Sat, 04 Jul 2026 01:24:51 GMT

Apogee

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Perigee

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Inclination

9.54°

Right Ascension

54.69°

Eccentricity

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Argument of Perigee

141.06°

Period

1454.02 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

ASTRA 1G

Alternative Name

Astra 1G

Type

Payload

Status

Non-operational

Owner

SES

Country

Luxembourg

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 25071U 97076A   26185.05893155 -.00000074  00000-0  00000-0 0  9994
2 25071   9.5422  54.6936 0007857 141.0607 207.0759  0.99036023104533

Source: Celestrak

Summary
ASTRA 1G is a communication satellite manufactured by HSES and owned by SES. It was launched on December 2, 1997, from Tyuratam Space Center (TYMSC) using the Proton-K/DM-2M launch vehicle from Launch Pad LC81/23. The satellite has a bus configuration of HS-601HP / BSS-601HP and is designed for direct broadcasting with 32 Ku-band transponders and 2 Ka-band transponders (only on #1H). It measures 4 meters in length, 3.2 meters in diameter, and has a span of 26.2 meters. The dry mass of the satellite is 1800 kg with a launch mass of 3388 kg. Astra 1G was stabilized on December 3, 1997, and its expected lifetime is 15 years. It uses two deployable solar arrays and batteries for power supply. The satellite has an RCS (Reaction Control System) value of 1.138 and a box + 2 wing shape.
Physical Characteristics

Length

4

Diameter

3.2

Span

26.2

Dry Mass

1800

Launch Mass

3388

Shape

Box + 2 Wing

Radar Cross Section

1.138

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Astra 1G

Purpose

Communication (Direct Broadcasting)

Mission

Communication (Direct Broadcasting)

Manufacturer

HSES

Life Expectancy

15 years

Bus

HS-601HP

Configuration

HS-601HP / BSS-601HP

Motor

R-4D-11-300

Equipment

32 Ku-band transponders (all), 2 Ka-band transponders (only #1H)

Power System

2 deployable solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

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