IRS-1D (24971)

COSPAR: 1997-057A | Alt Name: IRS-1D

Image

Additional Sources

Launch Details

Launch Date

September 29, 1997

Launch Site

SRILR

Launch Pad

FLP

Launch Vehicle

PSLV

Orbital Elements

NORAD ID

24971

International Designator

1997-057A

Epoch

Sat, 04 Jul 2026 06:38:51 GMT

Apogee

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Perigee

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Inclination

98.84°

Right Ascension

180.12°

Eccentricity

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Argument of Perigee

176.48°

Period

100.31 min

Mean Motion

14.36 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

IRS-1D

Alternative Name

IRS-1D

Type

Payload

Status

Non-operational

Owner

ISRO

Country

India

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 24971U 97057A   26185.27698252  .00000161  00000-0  71044-4 0  9992

2 24971  98.8434 180.1186 0052113 176.4795 183.6767 14.35519730505069

Source: Celestrak

Summary

IRS-1D is an Earth observation satellite operated by ISRO (Indian Space Research Organisation). Launched on September 29, 1997, from Sriharikota Launch Pad using the PSLV launch vehicle, IRS-1D has a dry mass of 1150 kg and carries equipment such as LISS-III, WiFS, and PAN. Its dimensions include a length of 2.3 meters, diameter of 1.6 meters, and span of 12 meters. The satellite is powered by two deployable solar arrays and batteries. It was designed for a 3-year mission but achieved a lifespan of 12 years. IRS-1D's shape consists of a box with two pans and has an RCS value of 3.912 square meters.

Physical Characteristics

Length

2.3

Diameter

1.6

Span

Dry Mass

1150

Launch Mass

1250

Shape

Box + 2 Pan

Radar Cross Section

3.912

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

IRS-1D

Purpose

Earth observation

Mission

Earth observation

Manufacturer

ISAC/HAL

Life Expectancy

3 years (design); 12 years (achieved)

Bus

IRS

Configuration

IRS-1 Bus

Motor

AOCS

Equipment

LISS-III, WiFS, PAN

Power System

2 deployable solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map

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Latitude

Longitude

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