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Aolani “heavenly cloud”
University of HawaiiShantel Hunt, Nick Fisher, Dan Fong,
James Ah Heong, Monica Umeda
Mission Overview:
The mission is to test our COM board, which is based on the MHX-2420 transceiver.
We plan to establish a real time link between the ballonsat and mobile ground station with which we will be monitoring satellite health conditions.
SHOT II / UN-6 Connection:
-UN-6 mission is to provide orbital radar calibration support to the Air Force by collecting and disseminating ephemeris data in response to radar interrogation
-UN-6 payload hardware is undergoing space environment testing provide by our customer
-COM subsystem supports interrogation schedule uplinks and ephemeris data downlinks
-SHOT II provides the COM subsystem with communication and operational testing in a near space environment
SHOT II Software Flow:
Aolani
dsPIC33fj128mc804
Microchip Technology Inc.
SHOT II Software Flow:Aolani
GROUND STATION
???
Aolani
RS-232
3 Commands:1. GPSD
a) Downlink ephemeris data.2. TEMP
a) Downlink temperature data.3. SCHD
a) Uplink schedule set.
>log rangecmp ontime 1
OKRANGECMP COM1 0 84.0 FINESTEERING 1581 433800.000 00040000 9691 3642 8 049c1018aaa0ff1ff11cf80ad6f1c8cbf3029a0700020000 0b9c3011b2b5ff5f231df80a9646dafef5029a0760010000 a49c1018d0140ac0e903820ab1595c99401ca02ba0030000 ab9c301105db07402204820a252e4dbb821cb02720020000 649d1018e31200701ddaed095dacaffa8008731d20030000 6b9d3011ba0e001047daed099ab72387c2088f1b20020000 849d100866d4f7efa67ae50a376b06d85004752020030000 8b9d30012aa2f92ff57ae50af8e86388c204752020020000
Sample GPS Data Packet
Howzit?
Just hanging…
SHOT II Design:
Flight Interface
External Power Switches
Mass of 1.150 kg
Expected Results:
• Establish a communication link
• Uplink commands
• Downlink data
• Ephemeris data
• Satellite state of health data
• Uplink schedule set
• Monitor ground station RSSI level
Demonstration:
Demonstration:
COM Board
Video Camera
Digital Camera
Batteries
3.3V & 5VConverters
Heater