Mission type | Communications |
---|---|
Operator | U.S. Navy[1] |
COSPAR ID | 2015-025D[1] |
SATCAT no. | 40654[1] |
Spacecraft properties | |
Bus | 1.5U Cubesat |
Manufacturer | Aerospace Co. |
Launch mass | 1.3 kilograms (2.9 lb) |
Dimensions | 10 by 10 by 15 centimetres (3.9 in × 3.9 in × 5.9 in) |
Start of mission | |
Launch date | 20 May 2015, 15:05 UTC |
Rocket | Atlas V 501 AV-054 |
Launch site | Cape Canaveral SLC-41 |
Orbital parameters | |
Reference system | Geocentric |
Regime | Low Earth |
Semi-major axis | 6,822 kilometres (4,239 mi)[2] |
Eccentricity | 0.160974[2] |
Perigee altitude | 341.5 kilometres (212.2 mi)[2] |
Apogee altitude | 561.1 kilometres (348.7 mi)[2] |
Inclination | 54.9919°[2] |
Period | 93.5 minutes[2] |
RAAN | 18.1944°[2] |
Argument of perigee | 119.1910°[2] |
Mean motion | 15.40667422[2] |
Epoch | 26 June 2018[2] |
Transponders | |
Band | FM |
ParkinsonSAT, PSat or Naval Academy OSCAR 84 is a U.S. technology demonstration satellite and an amateur radio satellite for Packet Radio. It was built at the U.S. Naval Academy and was planned as a double satellite (ParkinsonSAT A and B). The name ParkinsonSAT was chosen in honor of Bradford Parkinson, the father of the GPS system. After successful launch, the satellite was assigned the OSCAR number 84.
Mission
[edit]The satellite was launched on May 20, 2015, with an Atlas V rocket along with the main payload X-37B OTV-4 and 9 other CubeSat satellites (X-37B OTV-4, GEARRS 2, LightSail A, OptiCube 1, OptiCube 2, OptiCube 3, USS Langley, AeroCube 8A, AeroCube 8B and BRICSat-P) from Cape Canaveral AFS, Florida.
ParkinsonSAT is a student satellite project. It was partly funded by the Aerospace Corporation. It has a transponder for transmitting telemetry from remote measuring points (eg drifting buoys). This telemetry is to be transmitted to a network of ground stations. A second transponder enables multi-user text transmission in PSK31 mode. This transponder was built by the Brno University of Technology.[3]
Originally, the project consisted of 2 identical satellites: PSat-A and PSat-B, 2 identical 1.5U Cubesats, which should be brought together in a 3U starter into space. During the long wait for a launch opportunity in 2014, the construction of the satellite was changed again. The solar cells have been replaced by new, more efficient cells. The other originally named PSat-B CubeSat was rebuilt and started as BRICSat-P.
Frequencies
[edit]- 406 MHz Ocean Data Telemetry Microsat Link (ODTML)
- 145.825 MHz APRS Uplink and Downlink (1200 Band AX.25)
- 435.350 MHz PSK31 Downlink (FM, 300 mW)
- 28.120 MHz PSK31 Uplink (SSB, 25 W)
See also
[edit]References
[edit]External links
[edit]- Psat (ParkinsonSAT) Design Page
- ParkinsonSAT Archived 2015-09-21 at the Wayback Machine. U.S. Naval Academy Satellite Lab
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