Key statistics
Satellite DIAPASON (D1-A) at a glance.
Uptime
21804
Days in orbit
Revolutions
≈ 12.7
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
34.1
Latest
Satellite identification and parameters
Extended collection of information and parameters for DIAPASON (D1-A).
Object identification
Identified? True
Debris? False
Object name: DIAPASON (D1-A)
International designator: 1966-013A
Object number (NORAD): 2016
Object ID (CCSDS): 2016
Country: FRANCE (FR)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 113.754 minutes
Inclination: 34.0875 deg
SMA: 7776.851 km
Apoapsis: 2300.601 km
Periapsis: 496.831 km
RAAN: 230.0972 deg
Eccentricy: 0.11597044
Argument of periapsis: 33.6827 deg
Mean anomaly: 333.2333 deg
Mean motion: 12.65893226 rev/day
Mean motion (dot): 0.00003897 rev/day2
B* drag term: 0.0011204025 1/REarth
Two-line elements (TLE)
Creation date: Oct. 28, 2025, 7:11 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 28, 2025, 11:30 a.m. UTC
TLE line 0: 0 DIAPASON (D1-A)
TLE line 1: 1 02016U 66013A 25301.47928215 .00003897 00000-0 11204-2 0 9991
TLE line 2: 2 02016 34.0875 230.0972 1159704 33.6827 333.2333 12.65893226711066
Live tracking on map
Real-time ground track for satellite DIAPASON (D1-A).
Associated space launch
Diapason was a small cylindrical satellite, 20 cm long and 50 cm in diameter which was used for making geodetic measurements.
DIAPASON (D1-A) was lifted into orbit during the mission ‘Diamant A | Diapason D-1A’, on board a Diamant A space rocket.
The launch took place on Feb. 17, 1966, 8:33 a.m. from Brigitte.
For more information about the launch, click the button.
Diamant A | Diapason D-1A
Agency: N/A
Status: Launch Successful
Launch date: Feb. 17, 1966, 8:33 a.m. UTC
Rocket: Diamant A
Launch pad: Brigitte
Location: Interarmy Special Vehicles Test Centre, French Algeria
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