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LDPE-1 (49818)
COSPAR: 2021-118B | Alt Name: LDPE 1
Image
Additional Sources
Launch Details
Launch Date
December 7, 2021
Launch Site
Launch Pad
SLC41
Launch Vehicle
Atlas V 551
Orbital Elements
NORAD ID
49818
International Designator
2021-118B
Epoch
Fri, 03 Jul 2026 22:25:35 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
5.72°
Right Ascension
63.02°
Eccentricity
Calculating...
Argument of Perigee
84.82°
Period
1454.75 min
Mean Motion
0.99 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
LDPE-1
Alternative Name
LDPE 1
Type
Payload
Status
Operational
Owner
AFRL
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49818U 21118B 26184.93444214 -.00000211 00000-0 00000-0 0 9990
2 49818 5.7218 63.0228 0001265 84.8230 97.2952 0.98986283 16807
Source: Celestrak
Summary
The satellite LDPE-1, also known as LDPE 1, was launched on December 7, 2021, from Cape Canaveral Air Force Station's SLC41 launch pad using an Atlas V 551 launch vehicle. It is a technology mission satellite owned by AFRL and operated with a deployable solar array and batteries for power. The spacecraft measures 0.6 meters in length, 1.6 meters in diameter, and has a span of 3.6 meters. It weighs 500 kilograms both at launch and dry mass. The satellite is based on the Eagle-Bus ESPA (ESPAStar-D) configuration manufactured by NGIS and is expected to have a lifetime of approximately one year. Its shape is described as cylindrical with panels, and it was launched for technology purposes under the BUS designation of ESPAStar.
Physical Characteristics
Length
0.6
Diameter
1.6
Span
3.6
Dry Mass
500
Launch Mass
500
Shape
Cyl+panel
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
LDPE-1
Purpose
Technology
Mission
Technology
Manufacturer
NGIS
Life Expectancy
1 year
Bus
ESPAStar
Configuration
Eagle-Bus ESPA (ESPAStar-D)
Motor
?
Equipment
Unknown
Power System
Deployable solar array, 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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