Key statistics
Satellite ISIS 1 at a glance.
Uptime
20675
Days in orbit
Revolutions
≈ 11.3
Per day
Orbit
HEO
HEO
Inclination
88.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for ISIS 1.
Object identification
Identified? True
Debris? False
Object name: ISIS 1
International designator: 1969-009A
Object number (NORAD): 3669
Object ID (CCSDS): 3669
Country: CANADA (CA)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 127.401 minutes
Inclination: 88.4598 deg
SMA: 8387.025 km
Apoapsis: 3441.728 km
Periapsis: 576.052 km
RAAN: 175.2446 deg
Eccentricy: 0.17083984
Argument of periapsis: 98.2597 deg
Mean anomaly: 281.4889 deg
Mean motion: 11.30292565 rev/day
Mean motion (dot): 0.00000284 rev/day2
B* drag term: 0.00018579213 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 8:30 p.m. UTC
TLE line 0: 0 ISIS 1
TLE line 1: 1 03669U 69009A 25250.85471527 .00000284 00000-0 18579-3 0 9998
TLE line 2: 2 03669 88.4598 175.2446 1708398 98.2597 281.4889 11.30292565327874
Live tracking on map
Real-time ground track for satellite ISIS 1.
Associated space launch
ISIS 1 (International Satellite for Ionosphere Studies) was an ionospheric observatory instrumented with sweep- and fixed-frequency ionosondes, a VLF receiver, energetic and soft particle detectors, an ion mass spectrometer, an electrostatic probe, an electrostatic analyzer, a beacon transmitter, and a cosmic noise experiment.
ISIS 1 was lifted into orbit during the mission ‘Thor Delta E1 | Isis 1’, on board a Thor Delta E1 space rocket.
The launch took place on Jan. 30, 1969, 6:46 a.m. from Space Launch Complex 2E.
For more information about the launch, click the button.
Thor Delta E1 | Isis 1
Agency: N/A
Status: Launch Successful
Launch date: Jan. 30, 1969, 6:46 a.m. UTC
Rocket: Thor Delta E1
Launch pad: Space Launch Complex 2E
Location: Vandenberg SFB, CA, 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.
