Key statistics
Satellite ISIS 1 DEB at a glance.
Uptime
20718
Days in orbit
Revolutions
≈ 12.3
Per day
Orbit
HEO
HEO
Inclination
88.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for ISIS 1 DEB.
Object identification
Identified? True
Debris? True
Object name: ISIS 1 DEB
International designator: 1969-009C
Object number (NORAD): 31999
Object ID (CCSDS): 31999
Country: CANADA (CA)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 117.401 minutes
Inclination: 88.3943 deg
SMA: 7942.196 km
Apoapsis: 2568.819 km
Periapsis: 559.303 km
RAAN: 123.9104 deg
Eccentricy: 0.12650884
Argument of periapsis: 336.4311 deg
Mean anomaly: 18.3342 deg
Mean motion: 12.26568635 rev/day
Mean motion (dot): 0.00017191 rev/day2
B* drag term: 0.0087399742 1/REarth
Two-line elements (TLE)
Creation date: Oct. 20, 2025, 6:08 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 20, 2025, 1:42 p.m. UTC
TLE line 0: 0 ISIS 1 DEB
TLE line 1: 1 31999U 69009C 25293.57120275 .00017191 00000-0 87400-2 0 9995
TLE line 2: 2 31999 88.3943 123.9104 1265088 336.4311 18.3342 12.26568635779399
Live tracking on map
Real-time ground track for satellite ISIS 1 DEB.
In-orbit conjunctions
There are no conjunctions computed for ISIS 1 DEB, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated 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 DEB 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
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Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
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