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IRAS (13777)
COSPAR: 1983-004A | Alt Name: IRAS
Image
Additional Sources
Launch Details
Launch Date
January 26, 1983
Launch Site
AFWTR
Launch Pad
SLC2W
Launch Vehicle
Delta 3910
Orbital Elements
NORAD ID
13777
International Designator
1983-004A
Epoch
Fri, 03 Jul 2026 19:05:52 GMT
Apogee
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Perigee
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Inclination
99.06°
Right Ascension
6.29°
Eccentricity
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Argument of Perigee
280.43°
Period
102.79 min
Mean Motion
14.01 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
IRAS
Alternative Name
IRAS
Type
Payload
Status
Non-operational
Owner
JPL/NIVR
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 13777U 83004A 26184.79574713 .00000305 00000-0 23371-3 0 9991
2 13777 99.0579 6.2911 0017744 280.4269 79.4896 14.00931405888700
Source: Celestrak
Summary
The IRAS satellite, officially known as Infrared Astronomical Satellite, was launched by NASA on January 26, 1983, from Vandenberg Air Force Base using a Delta 3910 launch vehicle. The spacecraft has dimensions of 3.6 meters in length and diameter with a span of 3.6 meters. It had a dry mass of 954 kilograms and was launched with a total mass of 1027 kilograms. IRAS featured a 0.6-meter Ritchey-Chretien infrared telescope housed within a cryostat, enabling astronomical observations in the infra-red spectrum. The satellite's power system consisted of solar cells complemented by batteries for energy storage. Designed and manufactured by FOKKS/BALL under the ownership of JPL/NIVR, IRAS operated for approximately ten months, conducting significant infra-red astronomy missions before its deactivation.
Physical Characteristics
Length
3.6
Diameter
2
Span
3.6
Dry Mass
954
Launch Mass
1027
Shape
Cyl + Pan
Radar Cross Section
3.9914
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
IRAS
Purpose
Astronomy, Infra-Red
Mission
Astronomy, Infra-Red
Manufacturer
FOKKS/BALL
Life Expectancy
10 months
Bus
IRAS
Configuration
Unknown
Motor
None
Equipment
0.6 m Ritchey-Chretien IR telescope, cryostat
Power System
Solar cells, 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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