L-36 Atlas V launch vehicle • Orbit
− Altitude 470km – 780km − Inclination 64 degrees
• Date − Delivery January 2012 − Flight September 2012
World’s largest deployable from a NanoSat and first attempt at ground point tracking
Accomplished to date
J.Tim Barrett, Dr. Mike Obal, Mike Aherne, Dr. Tatiana Kitchkaylo, Jeff Sachs, Lucy Hoag, Will Bezouska, Craig Ward, Emin Vartanians, Alexader Shim, Siamak Hesar, Eric Teegarden, Rohan Ramadas, Melissa Christensen, Michael Ortega, Melissa Jawaharlal, Omair Rahman, Amit Shah, Anthony Shao, Nate White, John Razzano, Sara Gramling, Rahul Karkhanis, Chunyih Hsu, Dayung Koh, Neha Rathore, Carson Vogt, Erin Fowler, Amparo Romero, Desiree Webster, Xiaodan Wu, Maria Guzman, Amit Shah, Pezhman Zarifian, Andrew Laskowski, Mike Zarem, Michael Martin, Joe Parsons, Sammi Westall, Rafael Nuguid, Josh Fogel and Anubhav Thakur.
Aeneas Got Aperture?
Aeneas Got Aperture?
The Aeneas Mission
• Space based tag tracking experiment
− Space implementation of Marine Asset Tag Tracking System
(MATTS) by iControl Inc. − Bi-directional 2.4GHz comm. link
for Wireless Sensor Network − Ultra sensitive receiver to
communicate with low power, small, earth based sensors
− System currently uses ground stations ~ 1 mile range from ports
• Proof-of-concept: Satellite-based receivers for open ocean or cross
country • iControl data format selected for DHS
“Secure Corridors” Program
Various Publications: AIAA Space - Caerus Concept to Flight 11 months, SERC Engineering Teaching Hospital, Aeneas Three-Axis Pointing , Doppler-Based TLE Prediction and Correction and Current USU Small Sat Submissions
The authors wish to thank: David Barnhart for mission conception and guidance, the Cubesat Program Office for Colony I and access to launch, Prof. Joe Kunc and Maurice Martin at ORS/AFRL, Congresswoman Jane Harman’s office and ISI Executive Office for funding support.
Mission Enabler ½ meter deployable parabola
Bus: Colony I -USC Enhanced Three axis stabilized for sun and
ground tracking ±1.5° pointing accuracy Mems Gyros Sunsensor
Deployable Arrays with 22 watts full sun
Primary radio 115/248kbps 437.0 MHz spread
spectrum radio Secondary radio
1200 baud AFSK AX.25 Beacon @ 437.6 MHz Amateur Band
Dual Processor (FSW - C&HD) Payload: 0.5 m Deployable
parabolic antenna 18 dbi at 2.4GHz Space based implementation of
Marine Asset Tag Tracking System (MATTS)
Bi-directional 2.4GHz communication link for Wireless Sensor Network
Ultra sensitive receiver to communicate with low power, small, earth based sensors
The Colony I Bus Becomes Aeneas
World’s first – ½ Meter Deployable Antenna from CubeSat Filed invention disclosures for the device & processes with USC Stevens Institute
USC/ISI plans to provide advanced antenna to others
Stowed Antenna Link and Plug
LinkVespel- .25” dia x 3.5” long
#5 heli-coil
Rub plugMaterial TBD
Requirements Concepts/Prototype
Design/Implementation
Deployment Shock – Wyle Labs Anechoic RF – USC UltraLab
Closing the Link Required 18 dB gain on SV
Mobile Asset Tracking Tag
Frame from Stereolith Model Deployment Video
Solidworks Rendering
Metrology Testing - JPL
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step 0 z=0 deg
step 0 z=0 deg -90
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Helix Alone
Helix Alone
Helix alone -55 dBm (l.) with Parabola -40 dBm (r.) yields 15 dBm gain
JPL collaboration Mark Thomson Spacecraft Antennas
March 2013
Antenna Stowage
10x10x16.5 cm Payload Bay
Hand wound Bifilar Tx & RX Helix(es) and test board
Field RF Testing
Los Angeles Basin -20 Miles Malibu to Playa Del Rey ground station
iGate Receiver and sector antenna in 3 m dish at Barrett Range
Experiment Ground WebSite and Results
iGate page shows WLAN LQI iTag page shows association and RSSI
Aluminum Hub, ribs, hinges, springs, on assembly mandrel Aluminum canister holds stowed antenna
Before assembly into payload bay
Internet
Navigation Flight Controls iControl payload & mission com
Aeneas mission control at ISI
Hurricane mission hub, data storage Aeneas web
server
Rigel backup mission Hub
Novawurks Inc. Barrett range USC Ham Shack
SRI range
Local LA antennas primarily for amateur band beacon collect
Worldwide antennas amateur band beacon collect
CA antennas Primarily for MHX primary radio
Launch – Vandenberg AFB
Integration Jan 2012 Launch
NROL 36 Sept 13, 2012
P-POD Integration at Cal Poly
Deployment Testing
Full Launch and Early Ops test
antenna downward Subsequent test antenna upward
Integrated and Stowed at USC/ISI
Mission Operations Overview
Amateur Radio QSL card back
~640g Maximum at Feed
Stowage Fixture
Mysql search of 28652 shows handful of Non-Zero LQI At least two of were observed during AOS Indicates RF activity consistent with WiFi MATTS Tag Operational
