Diadem-1C and -1D
Jump to: Mission Objectives, Mission Instrumentation, Mission Parameters, Additional Information
Mission Photos:

Courtesy of CNES
Mission Objectives:
Diadème-1 D1C and Diadème-2 D1D were launched by CNES,
one week apart in February 1967 into elliptical orbits.
Both Diadème satellites were geodetic missions. These satellites were magnetically stabilized which
limited their trackability in the southern hemisphere.
Mission Instrumentation:
Diadème has the following instrumentation onboard:
- Dual frequency Doppler transmitters
- Retroreflector array
Mission Parameters:
| Diadème Parameters |
|
Diademe-C |
Diademe-D |
| Sponsor: |
CNES
(France) |
CNES
(France) |
| Expected Life: |
decades |
decades |
| Primary Application: |
geodesy |
geodesy |
| Primary SLR Application: |
geodesy |
geodesy |
| COSPAR ID: |
6701101 |
6701401 |
| SIC Code: |
6703 |
6704 |
| NORAD SSC Code: |
2674 |
2680 |
| Launch Date: |
February
08, 1967 |
February
15, 1967 |
| RRA Diameter: |
50 cm |
50 cm |
| RRA Shape: |
2
flattened truncated cones |
2
flattened truncated cones |
| Reflectors: |
144
corner cubes |
144
corner cubes |
| Orbit: |
Elliptical |
Elliptical |
| Inclination: |
39.9
degrees |
39.5
degrees |
| Eccentricity: |
0.037 |
0.076 |
| Perigee: |
550 km |
570 km |
| Period: |
101
minutes |
108
minutes |
| Weight: |
23 kg |
23 kg |
Additional Information:
|