Key statistics
Satellite SECOR 4 (EGRS 4) at a glance.
Uptime
21951
Days in orbit
Revolutions
≈ 12.9
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
90.2
Latest
Satellite identification and parameters
Extended collection of information and parameters for SECOR 4 (EGRS 4).
Object identification
Identified? True
Debris? False
Object name: SECOR 4 (EGRS 4)
International designator: 1965-027B
Object number (NORAD): 1315
Object ID (CCSDS): 1315
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 111.398 minutes
Inclination: 90.2453 deg
SMA: 7669.134 km
Apoapsis: 1314.949 km
Periapsis: 1267.049 km
RAAN: 6.4978 deg
Eccentricy: 0.0031229
Argument of periapsis: 173.4874 deg
Mean anomaly: 241.4309 deg
Mean motion: 12.92656947 rev/day
Mean motion (dot): 0.00000072 rev/day2
B* drag term: 0.00023718 1/REarth
Two-line elements (TLE)
Creation date: May 9, 2025, 2:46 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 8, 2025, 4:01 p.m. UTC
TLE line 0: 0 SECOR 4 (EGRS 4)
TLE line 1: 1 01315U 65027B 25128.66763389 .00000072 00000-0 23718-3 0 9999
TLE line 2: 2 01315 90.2453 6.4978 0031229 173.4874 241.4309 12.92656947834661
Live tracking on map
Real-time ground track for satellite SECOR 4 (EGRS 4).
In-orbit conjunctions
A list of the most updated potential collisions computed for object SECOR 4 (EGRS 4).
Associated space launch
Experimental satellite equipped with a nuclear power system and a cesium ion engine.
SECOR 4 (EGRS 4) was lifted into orbit during the mission ‘Atlas SLV-3 Agena D | SNAPSHOT-1’, on board a Atlas SLV-3 Agena D space rocket.
The launch took place on April 3, 1965, 9:25 p.m. from Space Launch Complex 4E.
For more information about the launch, click the button.
Atlas SLV-3 Agena D | SNAPSHOT-1
Agency: N/A
Status: Launch Successful
Launch date: April 3, 1965, 9:25 p.m. UTC
Rocket: Atlas SLV-3 Agena D
Launch pad: Space Launch Complex 4E
Location: Vandenberg SFB, CA, USA
...
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