The Day Electric Propulsion Changed Spaceflight Forever
Fifty-five years ago, a revolutionary spacecraft launched from California carrying technology that would transform how we explore the solar system
PROTOMETHEE (58321)
COSPAR: 2023-174BT | Alt Name: ProtoMethee
Image
Additional Sources
Launch Details
Orbital Elements
NORAD ID
58321
International Designator
2023-174BT
Epoch
Sun, 19 Jul 2026 19:30:21 GMT
Apogee
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Perigee
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Inclination
97.38°
Right Ascension
279.07°
Eccentricity
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Argument of Perigee
58.95°
Period
94.01 min
Mean Motion
15.32 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
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Basic Satellite Info
Name
PROTOMETHEE
Alternative Name
ProtoMethee
Type
Payload
Status
Operational
Owner
PROM
Country
France
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 58321U 23174BT 26200.81274910 .00001521 00000+0 52191-4 0 9998
2 58321 97.3761 279.0735 0008990 58.9524 301.2599 15.31697822149968
Source: Celestrak
Summary
PROTOMETHEE (also known as ProtoMethee) is a 16U CubeSat satellite designed for Earth observation, manufactured by NANAV and owned by PROM. It was launched on November 11, 2023, from AFWTR SLC4E using a Falcon 9 launch vehicle. The spacecraft measures 0.4 meters in length with a diameter of 0.2 meters and spans 0.4 meters across. Its dry mass is 30 kg, the same as its launch mass. It is equipped with a Simera Sense MultiScape200 CIS imager for capturing Earth images and uses solar cells along with batteries for power generation. The satellite's shape consists of a box structure with two panels.
Physical Characteristics
Length
0.4
Diameter
0.2
Span
0.4
Dry Mass
30
Launch Mass
30
Shape
Box + 2 pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
ProtoMethee
Purpose
Earth observation
Mission
Earth observation
Manufacturer
NANAV
Life Expectancy
Unknown
Bus
Cubesat 16U
Configuration
CubeSat (16U)
Motor
None
Equipment
Simera Sense MultiScape200 CIS imager
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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