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TDF 1 (19621)
COSPAR: 1988-098A | Alt Name: TDF 1
Image
Additional Sources
Launch Details
Launch Date
October 28, 1988
Launch Site
FRGUI
Launch Pad
ELA1
Launch Vehicle
Ariane 2
Orbital Elements
NORAD ID
19621
International Designator
1988-098A
Epoch
Fri, 03 Jul 2026 20:33:21 GMT
Apogee
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Perigee
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Inclination
14.72°
Right Ascension
350.21°
Eccentricity
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Argument of Perigee
247.35°
Period
1451.69 min
Mean Motion
0.99 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
TDF 1
Alternative Name
TDF 1
Type
Payload
Status
Unknown
Owner
FTEL
Country
France
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 19621U 88098A 26184.85650338 -.00000246 00000-0 00000-0 0 9994
2 19621 14.7174 350.2150 0008794 247.3461 306.2619 0.99195063134014
Source: Celestrak
Summary
TDF 1 is a communication satellite launched on October 28, 1988, from the Guiana Space Centre using an Ariane 2 launch vehicle. The spacecraft has dimensions of 6.2 meters in length and 2 meters in diameter with a span of 19.3 meters due to its solar arrays. It was manufactured by AESPC and equipped with 5 (+1) 230 W Ku-band transponders for communication purposes. TDF 1 weighs 1,034 kilograms dry and had an initial launch mass of 2,077 kilograms. The satellite is powered by two deployable solar arrays and batteries and has a shape described as Box + 2 Pan with an RCS value of 10.0237. It was owned and operated by FTEL (French Telecom) for communication purposes and had a planned lifetime of eight years.
Physical Characteristics
Length
6.2
Diameter
2
Span
19.3
Dry Mass
1034
Launch Mass
2077
Shape
Box + 2 Pan
Radar Cross Section
10.0237
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
TDF 1
Purpose
Communication
Mission
Communication
Manufacturer
AESPC
Life Expectancy
8 years
Bus
Spacebus 300
Configuration
Spacebus-300
Motor
S400
Equipment
5(+1) 230 W 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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