UPR-R(river) P(rock) University of Puerto Rico Ro Piedras
Campus October 16, 2010 CoDR Ver 0.1
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Team Members Lisandra Cordero Pedro J. Davila Jose Fuentes Luis
Garcia Rafael Gavilane Laura Oben Marilena Ortiz Javier Rodriguez
Esteban Romero Luis M. Rodriguez Noel Sanchez Veronica Zayas
Students: Faculty Support: Vladimir Makarov Geraldo Morell Gladys
Munoz Rafael Velazquez Benjamin Bolao Oscar Resto
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1) Mission objectives a) Brief explanation b) Expected findings
c) Related research/experimentation 2) Design a) Hardware i) Parts
ii) Functional block diagrams 3) RockSat Payload Canister
Construction Compliance 4) Integration Mission Overview
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Objectives Measurement of selected gases in near-space
conditions. Inorganic and Microorganism aerosols survey in
near-space conditions.
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Measurement of gases Why gases? Measuring gases is an important
part of the mission since they can be the building blocks of
polypeptides. There is also an interest in measuring the gases that
cause the greenhouse effect.
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Greenhouse Effect
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Finding microorganisms What type of microorganism? a)
Extremophiles: b) Psychrophiles (Below freezing temperatures) c)
Piezophiles (High-pressure environments ) d) Radioresistant
(Resistant to Ionizing radiation, UV) e) Endospore (Dormant stage
)
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Why these specimens?
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Expected results Microorganisms or endospores which can resist
extremely high levels of radiation. This includes: UV
(ultraviolet), X-rays and Gamma rays. Also capable of surviving in
low pressures and temperatures. Polypeptides or amino acids could
also be obtained because the Miller and Urey components could be
readily available.
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Related research Most of the studies related to atmospheric
gases which have been collected at altitudes of 3 km have
identified and measured the following: N 2, O 2, Ar, O, CO x, CH 4,
H 2 S, SO 2, O 3, NO x, CFC, and H 2 O
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Supporting Analysis Research Identification of gases during the
flight Semiconductor gas sensor Collection of aerosols Polymer
nano-scale filter (25 to1000 nm) Bio-Sample Culture Collection and
Survey Sterilized adhesive collector and Microbiology standard
procedures Inorganic particles analysis Auger, XPS, SIMs and Time
of Flight Mass Spectroscopy Size distribution and element
characterization Electron Microscopy (TEM, SEM, EDS, ELLS) Laser
spectroscopy analysis
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Collection and Detection Diagram AVR Controller and Data
Storage Computer Controlled Flow Valves Microorganism and Aerosol
Battery Filters Multiple Semiconductor Gas Sensors Gas Canister
Sampler Bernoulli Gases Exhaust Port Ram Air Atmospheric Sampling
Intake 100 nm 50 nm 1000 nm 500 nm 200 nm 100 nm 50 nm 1000 nm 500
nm 200 nm 100 nm 50 nm 1000 nm 500 nm 200 nm Bleeder Computer
Controlled Flow Line Full Flow Diaphragm Pressure Regulator
Exhaust
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Functional Payload
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Functional Block Diagram Power 2x9V Supply Batteries G-Switch
RBF (Wallops) 5V Regulator X / Y Acceleromet er Z Acceleromet er
Temperatur e Sensor AVR Board AirCore Board Flash Memory 6 channel
ADC Control Circuit (NPN) AVR Microcontroller ADC Intake Solenoid
Valves Exhaust at Rocket unpressurized section Intake Solenoid
Valve Nano-Filters Sequential Controlled Valves Exhaust Solenoid
Valve Data Airflow Power Interface RAM Air Intake from Outside of
the Rocket Gas Semiconductor Sensor 5 Gas Semiconductor Sensor 3
Gas Semiconductor Sensor 1 2x9 V Supply Gas Semiconductor Sensor 2
Gas Semiconductor Sensor 4 Gas Semiconductor Sensor 6 Notice
Electrical Compliance with Wallops Sequential Controlled
Valves
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AVR Schematic Wallops Compliance
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Parts: 1) 3/8 PTFC tubing 2) Sequential Valves 3) Polymer type
membrane filters 4) Discrete Semi-Conductor Sensors 5) TE Grids 6)
Power and controls wiring 7) AVR 8) Gas Flow Control Diaphragms
Part List AVR Board 9) ATMega 32L Microprocessor 10) 16 MB Flash
Memory 11) 0-15 Psi Pressure Sensor 12) 3-Axis Acceleration 13)
Temperature Sensor 14) In-System-Programming 15) Attached Geiger
Counter 16) 9 Volt Bus 17) RBF pin on each kit 18) G-switch on each
kit
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Special Requirements Dynamic Port
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Dynamic Port (Ram Air)
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Air Intake and Bernoulli Exhaust Exhaust Ram Air Intake
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RockSat Payload Canister User Guide Compliance Type of
RestrictionRestrictionStatus Mass allotment:Payload w/canister
Volume allotment:Full canister The payloads center of gravity (CG):
tested In 1X1X1 envelope of centroid? Wallops No-Volt Requirement
Compliance:Yes Structure mounts: Hoses are Required Top and bottom
bulkheads. No mounts to sides of cans. Sharing:Full Can
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References Miller, Stanley L. (May 1953). "Production of Amino
Acids Under Possible Primitive Earth Conditions". Science 117: 528.
Thomas, Gary E. (1987) Trace Constituents in the Mesosphere Physica
Scrypta T18: 281-288 Philbrick,Charles R. ; Faucher,Gerard A. ;
Wlodyka,Raymond A. (December 1971). Neutral Composition
Measurements of the Mesosphere and Lower Thermosphere National
Technical Information ServiceNational Technical Information Service
Nicholson, W, Munakata, N, Horneck, G, Melosh,H, and Setlow, P,
(2000). Resistance of Bacillus Endospores to Extreme Terrestrial
and Extraterrestrial Environments Microbiology and Molecular
Biology Reviews, p. 548-572. Satyanarayana, T.; Raghukumar, C.;
Shivaji, S. (July 2005). "Extremophilic microbes: Diversity and
perspectives". Current Science 89 (1): 7890.Extremophilic microbes:
Diversity and perspectives