INSAT-1D (20643)

COSPAR: 1990-051A | Alt Name: Insat 1D

Image

Additional Sources

Launch Details

Launch Date

June 12, 1990

Launch Site

Cape Canaveral Space Force Station

Launch Pad

LC17B

Launch Vehicle

Delta 4925-8

Orbital Elements

NORAD ID

20643

International Designator

1990-051A

Epoch

Fri, 03 Jul 2026 22:52:40 GMT

Apogee

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Perigee

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Inclination

14.61°

Right Ascension

353.83°

Eccentricity

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Argument of Perigee

191.98°

Period

1436.14 min

Mean Motion

1.00 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

INSAT-1D

Alternative Name

Insat 1D

Type

Payload

Status

Non-operational

Owner

ISRO

Country

India

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 20643U 90051A   26184.95324106 -.00000162  00000-0  00000-0 0  9991

2 20643  14.6062 353.8289 0016485 191.9809 160.6590  1.00268596118919

Source: Celestrak

Summary

INSAT-1D was a communication and meteorology satellite launched by ISRO on June 12, 1990, from Cape Canaveral Air Force Station using the Delta 4925-8 launch vehicle. The spacecraft had dimensions of 2.2 meters in length, 1.6 meters in diameter, and a span of 19.4 meters. It featured a dry mass of 550 kilograms and a launch mass of 1190 kilograms. INSAT-1D was equipped with 12 C-band transponders and 2+1 S-band transponders for its communication payload, powered by deployable solar arrays and batteries. The satellite's shape consisted of a box, panel, and antenna configuration. It had a mission lifetime of 7 years, operated by ISRO, and was manufactured by FORDA. Its purpose was to provide both communication services and meteorological observations from orbit.

Physical Characteristics

Length

2.2

Diameter

1.6

Span

19.4

Dry Mass

550

Launch Mass

1190

Shape

Box + Pan + Ant

Radar Cross Section

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Insat 1D

Purpose

Communication / Meteorology

Mission

Communication / Meteorology

Manufacturer

FORDA

Life Expectancy

7 years

Bus

Insat 1

Configuration

Insat-1 Bus

Motor

R-4D-11

Equipment

12 C-band transponder, 2+1 S-band transponders

Power System

Deployable solar array, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map

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