Key statistics
Satellite ATLAS 28E R/B at a glance.
Uptime
12980
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: 97.319 minutes
Inclination: 89.8617 deg
SMA: 7008.485 km
Apoapsis: 669.995 km
Periapsis: 590.706 km
RAAN: 260.4438 deg
Eccentricy: 0.00565663
Argument of periapsis: 306.0407 deg
Mean anomaly: 53.5582 deg
Mean motion: 14.79675618 rev/day
Mean motion (dot): 0.00002491 rev/day2
B* drag term: 0.00032112326 1/REarth
Two-line elements (TLE)
Creation date: Oct. 24, 2025, 2:48 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 23, 2025, 10:01 p.m. UTC
TLE line 0: 0 ATLAS 28E R/B
TLE line 1: 1 20563U 90031D 25296.91752047 .00002491 00000-0 32112-3 0 9996
TLE line 2: 2 20563 89.8617 260.4438 0056566 306.0407 53.5582 14.79675618335601
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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