Key statistics
Satellite EXPLORER 27 at a glance.
Uptime
22094
Days in orbit
Revolutions
≈ 13.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
41.2
Latest
Satellite identification and parameters
Extended collection of information and parameters for EXPLORER 27.
Object identification
Identified? True
Debris? False
Object name: EXPLORER 27
International designator: 1965-032A
Object number (NORAD): 1328
Object ID (CCSDS): 1328
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 107.551 minutes
Inclination: 41.1842 deg
SMA: 7491.507 km
Apoapsis: 1295.438 km
Periapsis: 931.307 km
RAAN: 303.7685 deg
Eccentricy: 0.02430294
Argument of periapsis: 162.8837 deg
Mean anomaly: 198.0288 deg
Mean motion: 13.38902465 rev/day
Mean motion (dot): -0.00000028 rev/day2
B* drag term: 0.000084589093 1/REarth
Two-line elements (TLE)
Creation date: Oct. 25, 2025, 3:11 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 24, 2025, 10:59 p.m. UTC
TLE line 0: 0 EXPLORER 27
TLE line 1: 1 01328U 65032A 25297.95813824 -.00000028 00000-0 84589-4 0 9994
TLE line 2: 2 01328 41.1842 303.7685 0243029 162.8837 198.0288 13.38902465956808
Live tracking on map
Real-time ground track for satellite EXPLORER 27.
In-orbit conjunctions
There are no conjunctions computed for EXPLORER 27, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
The BE (Beacon Explorer) satellites provided Laser reflectors for geodetic measurements as well measured the electron density in the ionosphere.
EXPLORER 27 was lifted into orbit during the mission ‘Scout X-4 | Beacon Explorer C’, on board a Scout X-4 space rocket.
The launch took place on April 29, 1965, 2:17 p.m. from Launch Area 3A.
For more information about the launch, click the button.
Scout X-4 | Beacon Explorer C
Agency: N/A
Status: Launch Successful
Launch date: April 29, 1965, 2:17 p.m. UTC
Rocket: Scout X-4
Launch pad: Launch Area 3A
Location: Wallops Flight Facility, Virginia, USA
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
