ODERACS-2 (Orbital Debris Radar Calibration Sphere 2) was a series of six spheres deployed from the shuttle mission STS-63, ODERACS-2A through -2. The purpose of the Orbital Debris Radar Calibration Sphere experiment was to calibrate the radars and telescopes used for orbital debris measurements by putting passive objects of known size and shape into orbit. The objects were 2, 4, and 6 inch spheres and three wire dipoles.[1]
The ODERACS satellites launched aboard the Space Shuttle Discovery on 4 February 1995, at 04:57 from Kennedy Space Center's Launch Pad 39B alongside Spartan 204-F1. They were placed into a 51.6° orbit.
Specifications
[edit]| Satellite | COSPAR ID | SATCAT number | Shape |
|---|---|---|---|
| ODERACS-2A | 1995-004C | 23471 | 15 cm sphere |
| ODERACS-2B | 1995-004D | 23472 | 10 cm sphere |
| ODERACS-2C | 1995-004E | 23473 | 5 cm sphere |
| ODERACS-2D | 1995-004F | 23474 | 13.3 cm dipole |
| ODERACS-2E | 1995-004G | 23475 | 13.3 cm dipole |
| ODERACS-2F | 1995-004H | 23476 | 4.4 cm dipole |
References
[edit]
- ODERACS 2A National Space Science Data Center (NASA GSFC)
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction