Key statistics
Satellite SCOUT X-4 R/B at a glance.
Uptime
21923
Days in orbit
Revolutions
≈ 14.9
Per day
Orbit
LEO
Low Earth Orbit
Inclination
75.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for SCOUT X-4 R/B.
Object identification
Identified? True
Debris? False
Object name: SCOUT X-4 R/B
International designator: 1965-101B
Object number (NORAD): 1815
Object ID (CCSDS): 1815
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 96.597 minutes
Inclination: 75.8419 deg
SMA: 6973.806 km
Apoapsis: 600.987 km
Periapsis: 590.355 km
RAAN: 320.0536 deg
Eccentricy: 0.00076231
Argument of periapsis: 264.8476 deg
Mean anomaly: 95.1847 deg
Mean motion: 14.90726431 rev/day
Mean motion (dot): 0.00005773 rev/day2
B* drag term: 0.00058931558 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 8:38 a.m. UTC
TLE line 0: 0 SCOUT X-4 R/B
TLE line 1: 1 01815U 65101B 25347.36016960 .00005773 00000-0 58932-3 0 9992
TLE line 2: 2 01815 75.8419 320.0536 0007623 264.8476 95.1847 14.90726431 40527
Live tracking on map
Real-time ground track for satellite SCOUT X-4 R/B.
Associated space launch
The FR 1 (France 1) spacecraft was a small spacecraft carrying two experiments. One was designed to observe VLF signals from earth-based transmitters, and the other was an electron density probe measuring electron concentration at the satellite.
SCOUT X-4 R/B was lifted into orbit during the mission ‘Scout X-4 | FR-1’, on board a Scout X-4 space rocket.
The launch took place on Dec. 6, 1965, 9:05 p.m. from Space Launch Complex 5.
For more information about the launch, click the button.
Scout X-4 | FR-1
Agency: N/A
Status: Launch Successful
Launch date: Dec. 6, 1965, 9:05 p.m. UTC
Rocket: Scout X-4
Launch pad: Space Launch Complex 5
Location: Vandenberg SFB, CA, USA
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