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RockSat-C 2012
LRR
Launch Readiness Review
Harding UniversityDrew Cancienne, Josh Griffith, David
Stair, Will Waldron and Ed Wilson5-22-2012
RockSat-C 2012
LRR
Fiber Optic Cable Integration
2
RockSat-C 2012
LRR
Final Payload
3
All parts of payload shown except possible conditioning circuit.
RockSat-C 2012
LRR
Team Photo with Payload
4
RockSat-C 2012
LRR
Completed CG Apparatus
5
RockSat-C 2012
LRR
User Guide Compliance
6
Requirement Payload Requirement StatusMass allotment: 6 lbs .4 Over
Volume allotment: Top 4.5” Passes
The payload’s center of gravity (CG):
In 1”X1”X1” envelope of centroid (or in area designated
for sharing teams?
Developing Method to
Test
Activation met under requirement: (either 1.SYS.1 or 1.SYS.2)
1.SYS.2 Tested - Passed
Structure mounts: Top and bottom bulkheads. No mounts to sides of cans.
Passed
Sharing: Fully developed? No Response from NW Nazarene
RockSat-C 2012
LRR
Integration Plan and Procedure
• Integration Update– Payload all but Fully Integrated
• All but a few components integrated• Must have self starting microcontroller• May want to amplify CCD and photodiode
signals– Very close to complete and final
integration
7
RockSat-C 2012
LRR
Integration Plan and Procedure
• Procedure Written?– Procedure Written in PowerPoint with
pictures for each step– Example on next slide
8
Wire CCD Array to Micro Controller.
White – GroundGreen – VOUTBlack – PowerRed – ROGBlue - CLK
RockSat-C 2012
LRR
Integration Plan and Procedure
• Concerns– Broke new shorter fiber optic cable
• Fix: Use last year’s longer fiber optic cable• Note: Fixed
– No response from Northwestern Nazarene College about integration
RockSat-C 2012
LRR
Testing Results
• Activation– G-Switch Circuit – Tested: Passed– Microcontroller – Just about
• Must load TERN onto a 32-bit computer to load startup program onto microcontroller
• Testing Updates– Spectrum taken with payload on next
slide– Full Mission Test Tuesday or Wednesday
11
RockSat-C 2012
LRR
12
Oxygen
Water
Water
RockSat-C 2012
LRR
Testing Results
• Mission Requirements Met1. An optical port is mandatory2. An adequate, stable and reliable power
supply3. A robust, responsive G-Switch4. A sensitive, rugged spectrometer
operating in the 200 – 1000 nm wavelength range
5. A photodiode sensitive to the same wavelengths as the spectrometer
13
RockSat-C 2012
LRR
Testing Results
• Mission Requirements Met (cont.)6. A microprocessor with two
programmable clocks, high speed analog to digital converters, and memory to store the acquired spectra
7. Software program to operate the payload
14
RockSat-C 2012
LRR
Testing Results
• Mission Requirements Met (cont.)8. Mounting hardware for the payload
that will withstand the g-forces imposed during testing and flight and will not interfere with the NW Nazarene payload
15
RockSat-C 2012
LRR
Testing Results
• Mission Requirements not met1. Signal conditioning board to insure the
electrical inputs and outputs between the sensors and the microprocessor match in terms of voltage ranges, currents and impedances
16
RockSat-C 2012
LRR
Level of Readiness
• Are you ready? We could fly today• What is ready?
– Software to fly– Hardware
• What is not ready?– Conditioning Circuit
17
RockSat-C 2012
LRR
Level of Readiness
• Action items between now and June 15th?– Finish conditioning circuit– Full Missions Simulation completed this
week– Make the existing software better– Test Possibility of Neutral Density Filter
• Filter that blocks out wavelengths equally
18
RockSat-C 2012
LRR
Check-In Inspections
• Are there any remaining questions about check-in?
• Have you tried it yet? – Check Procedure run? No
19
RockSat-C 2012
LRR
Final Questions
• Do you have any questions about how this week will go?– Any environmental test day questions?
No– Any integration day questions? No– Any launch day questions? No– Food questions? No– Have you received your final payment
check?
20