Optical Intersatellite Link (OISL)
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INTELSAT 804 (IS-804) (25110)
COSPAR: 1997-083A | Alt Name: INTELSAT 804
Image
Additional Sources
Launch Details
Launch Date
December 21, 1997
Launch Site
FRGUI
Launch Pad
ELA2
Launch Vehicle
Ariane 42L
Orbital Elements
NORAD ID
25110
International Designator
1997-083A
Epoch
Fri, 03 Jul 2026 19:50:55 GMT
Apogee
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Perigee
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Inclination
13.17°
Right Ascension
17.50°
Eccentricity
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Argument of Perigee
30.81°
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
INTELSAT 804 (IS-804)
Alternative Name
INTELSAT 804
Type
Payload
Status
Non-operational
Owner
INTEL
Country
INTELSAT
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 25110U 97083A 26184.82703659 -.00000085 00000-0 00000-0 0 9991
2 25110 13.1679 17.5008 0009090 30.8145 335.7796 1.00268447104500
Source: Celestrak
Summary
INTELSAT 804 (IS-804), also known as INTELSAT 804, is a communication satellite launched on December 21, 1997, from the ELA2 launch pad at Kourou, French Guiana, using an Ariane 42L launch vehicle. The spacecraft has dimensions of 5.2 meters in length and 2.2 meters in diameter with a span of 10.8 meters when fully deployed. It was manufactured by LMTEW (Lockheed Martin Telecommunications & Electronics West) and operated by INTEL (Intelsat). With a launch mass of 3455 kg and a dry mass of 1601 kg, the satellite is equipped with 2 deployable solar arrays for power generation. The payload includes 38 C-band transponders and 6 Ku-band transponders, enabling robust communication capabilities. Its design consists of a box-shaped body with two panels and it is powered by batteries in addition to its solar arrays. INTELSAT 804 has an expected operational lifetime of between 14-17 years depending on the launch vehicle. The satellite's motor system includes 2x Leros 1B engines for maneuvering.
Physical Characteristics
Length
5.2
Diameter
2.2
Span
10.8
Dry Mass
1601
Launch Mass
3455
Shape
Box + 2 Pan
Radar Cross Section
10
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
INTELSAT 804
Purpose
Communication
Mission
Communication
Manufacturer
LMTEW
Life Expectancy
14-17 years, depending on the launch vehicle
Bus
AS7000
Configuration
AS-7000
Motor
2x Leros 1B
Equipment
38 C-band transponders, 6 Ku-band transponders
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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