IARU Amateur Satellite Frequency Coordination

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KickSat Updated: 26 Aug 2013   Responsible Operator Zachary Manchester KD2BHC
Supporting Organisation Cornell University  
Contact Person zrm3@cornell.edu.nospam  
Headline Details: KickSat is a CubeSat technology demonstration mission designed to demonstrate the deployment and operation of prototype Sprite “ChipSats” (femtosatellites) developed at Cornell University. ChipSats like the Sprite represent a disruptive new space technology that will both open space access to hobbyists and students and enable new types of science missions. A significant portion of the KickSat mission has been financed by over 300 individual sponsors through the crowd-source funding website Kickstarter. The Sprite is a tiny spacecraft that includes power, sensor, and communication systems on a printed circuit board measuring 3.5 by 3.5 cm with a thickness of 2.5 mm and a mass of about 5 grams. It is intended as a general-purpose sensor platform for micro-electro-mechanical (MEMS) or other chip-scale sensors with the ability to downlink data to ground stations from LEO. KickSat is a 3U CubeSat being built to carry and deploy 200 Sprites. A 1U avionics bus will provide power, communications, and command and data handling functions. A 2U deployer has been developed to house the Sprites. Approximately 200 will be stacked atop a spring-loaded pusher and secured by a nichrome burn wire system. After being released from the P-POD, KickSat will perform a de-tumble maneuver and establish communication with Cornell’s ground station. After check-out, the spacecraft will be put in a sun-pointing attitude and spun up to maintain that attitude. A command signal from the ground station will then trigger the deployment and the Sprites will be released as free-flying spacecraft. After deployment, telemetry and sensor measurements from the individual Sprites will be received through Cornell’s ground station in Ithaca, NY, as well as several other amateur ground stations throughout the world. The Sprites are expected to reenter the atmosphere and burn up within a few days or weeks depending on atmospheric conditions. Their worst-case maximum orbital lifetime is estimated at 6 weeks. We are currently investigating uses for the KickSat bus after the Sprite deployment and are seeking collaborators who could make use of its capabilities as part of an extended mission. Proposed Downlink Frequency: 2.4-2.45 GHz RF Output Power: 1W ITU Emission Designator: 350KF1D Description: AX.25 over FSK.Frequency Band: 435-438 MHz. Output Power: 10 mW ITU Emission Designator: 50K0G1D. Description: MSK modulated binary data with each data bit modulated as a 511 bit PRN sequence. All Sprites operate on a single frequency and use CDMA.Several CubeSats are being launched together on ELaNa-5 / CRS-3. Besides KickSat, they are: DragonSat-1 - USNA and Drexel Univ.Trailblazer - U. of New Mexico. PrintSat - Montana State University. All-Star/THEIA - University of Colorado. UNP-6 Radar Calibration CubeSat - U. of Hawaii.PhoneSat - NASA ARC. MisST - NASA ARC. Launch parameters are 325x315km 51.5 degree inclination on a launch from Cape Canaveral. More information from www.spacecraftresearch.com ** Frequencies of 437.240MHz for the Sprite beacons, 437.505MHz for the Kicksat beacon and 2401-2436.2MHz for the Kicksat downlink have now been coordinated**
Application Date: 20 Sep 2012   Freq coordination completed on 02 Dec 2012

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