Key statistics
Satellite ATLAS 28E R/B at a glance.
Uptime
12930
Days in orbit
Revolutions
≈ 14.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
89.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for ATLAS 28E R/B.
Object identification
Identified? True
Debris? False
Object name: ATLAS 28E R/B
International designator: 1990-031D
Object number (NORAD): 20563
Object ID (CCSDS): 20563
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 97.334 minutes
Inclination: 89.8571 deg
SMA: 7009.225 km
Apoapsis: 674.111 km
Periapsis: 588.07 km
RAAN: 261.3407 deg
Eccentricy: 0.00613771
Argument of periapsis: 124.7348 deg
Mean anomaly: 235.9676 deg
Mean motion: 14.79441268 rev/day
Mean motion (dot): 0.0000215 rev/day2
B* drag term: 0.00027679754 1/REarth
Two-line elements (TLE)
Creation date: Sept. 3, 2025, 10:15 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 3, 2025, 1:22 a.m. UTC
TLE line 0: 0 ATLAS 28E R/B
TLE line 1: 1 20563U 90031D 25246.05705242 .00002150 00000-0 27680-3 0 9997
TLE line 2: 2 20563 89.8571 261.3407 0061377 124.7348 235.9676 14.79441268328087
Live tracking on map
Real-time ground track for satellite ATLAS 28E R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object ATLAS 28E R/B.
Associated space launch
POGS & SSR was a satellite designed to measure the Earth's magnetic field. TEX and SCE studied ionospheric effects on RF transmissions.
ATLAS 28E R/B was lifted into orbit during the mission ‘Atlas E Altair | POGS & SSR, TEX, SCE’, on board a Atlas E Altair space rocket.
The launch took place on April 11, 1990, 3 p.m. from Space Launch Complex 3W.
For more information about the launch, click the button.
Atlas E Altair | POGS & SSR, TEX, SCE
Agency: N/A
Status: Launch Successful
Launch date: April 11, 1990, 3 p.m. UTC
Rocket: Atlas E Altair
Launch pad: Space Launch Complex 3W
Location: Vandenberg SFB, CA, USA
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