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IRS-1A (18960)
COSPAR: 1988-021A | Alt Name: IRS-1A
Image
Additional Sources
Launch Details
Launch Date
March 17, 1988
Launch Site
Launch Pad
LC31
Launch Vehicle
Vostok 8A92M
Orbital Elements
NORAD ID
18960
International Designator
1988-021A
Epoch
Sat, 04 Jul 2026 03:59:12 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
98.85°
Right Ascension
239.23°
Eccentricity
Calculating...
Argument of Perigee
158.04°
Period
103.07 min
Mean Motion
13.97 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
IRS-1A
Alternative Name
IRS-1A
Type
Payload
Status
Non-operational
Owner
ISRO
Country
India
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 18960U 88021A 26185.16611152 .00000145 00000-0 13358-3 0 9991
2 18960 98.8497 239.2287 0014610 158.0366 220.5480 13.97175445855549
Source: Celestrak
Summary
IRS-1A is an Earth observation satellite launched by ISRO on March 17, 1988, from TYSMC using a Vostok 8A92M launch vehicle. It has dimensions of 1.6 meters in length and 1.1 meters in diameter with a span of 12 meters. The satellite features two deployable solar arrays for power and carries equipment such as LISS-I, LISS-IIA/B sensors. Its dry mass is recorded at 950 kilograms while the launch mass was 975 kilograms. IRS-1A operates within an Earth observation mission and has a box-shaped body with two panels. It is owned by ISRO and manufactured under the IRS-1 Bus configuration.
Physical Characteristics
Length
1.6
Diameter
1.1
Span
12
Dry Mass
950
Launch Mass
975
Shape
Box + 2 Pan
Radar Cross Section
3.5011
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
IRS-1A
Purpose
Earth observation
Mission
Earth observation
Manufacturer
ISRO
Life Expectancy
Unknown
Bus
IRS
Configuration
IRS-1 Bus
Motor
AOCS
Equipment
LISS-I, LISS-IIA/B
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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