Evan Akselrad, Chris Anaya, Natalie Bixler, Melanie Dubin, Logan Finch, Ted Maritz, and Scott Williams

September 23, 2008

Fall 2008 R

ev A

09-23-08

Mission Overview

The Balloon Sat Flight Club shall ascend to an altitude of 30 kilometers in order to: Image the curvature of the earth and the

celestial sky in the daylight Measure the light intensity as a function of

altitudes.

Mission Purpose The team shall image the curvature of the

earth and the celestial sky in order to demonstrate the capacities of high altitude imaging.

The team shall measure light intensity as a function of altitude to determine whether there is a discontinuity at the flight level of commercial aircraft. troposphere and the surface of the earth. Search for a correlation between commercial

aviation and global warming, which is known to be caused by increased light intensity.

Design: Hardware Foam Core- lightweight outer layer Thermal Sheets- gold colored foil to assist in overcoming the subzero

temperatures Hobo Data Logger- 4 channel data collection and processing system to

perform the science mission during the flight. External/Internal Temperature Probe- To take internal and external

temperature readings during flight Cannon Digital Camera- Will be used to image the curvature of the earth Heating System- To keep the payload above 0 degrees Celsius Timing Circuit- Circuit that commands camera to take pictures Batteries- Powers satellite Solar Panel- The solar panel is a sheet of solar cells that attaches to the

outside of the satellite in order to measure the voltage created by the varying intensities of light as a function of altitude. The voltage data can be interpreted as a measure of light intensity.

Design: Illustration Heater

HOBO Data Recorder

External Temperature Sensor

Light Intensity Experiment (solar panel)

Digital Camera

Attachment Tube

Design: Functional Block Diagram

External Temperature Probe

External Temperature Probe

Internal Temperature Probe

Internal Temperature Probe

Light Intensity Sensor

Light Intensity Sensor

Hobo Data Logger

4 Channel

Hobo Data Logger

4 Channel

Digital CameraDigital Camera

Switch 1Switch 1

Timing CircuitTiming Circuit

Switch 2Switch 2

Heating SystemHeating System

Power SystemsPower Systems

ManagementProject Manager

Natalie Bixler

Structures Thermal ADCS C&DH Power Electrical Science

Melanie Dubin

Natalie Bixler Chris Anaya

C&DH

Scott Williams

Logan Finch Evan Akselrad

Ted Maritz

ScheduleItem Start Date Finish/Due Date Location

Proposal and Conceptual Design Review Presentation 9/11/08 9/23/08 5pm Baker Study Room/ECCR 200

Build Timing Circuit and Heaters 9/16/08 9/18/08 Baker Study Room

Team Meetings Sundays Every Week Baker Study Room

Complete Design 9/11/08 9/27/08 ITLL/Baker

Design Document Revision A 10/2/08 10/9/08 Baker Study Room

Design Document Revision B 10/9/08 10/14/08 Baker Study Room

Acquire all hardware 10/2/08 10/10/08 ITLL

Critical Design Review 10/1/08 10/14/08 Baker Study Room

Prototyping design 10/10/08 10/23/08 ITLL/Baker

Design Document Revision C 10/16/08 11/06/08 Baker Study Room

Demo of Balloon Sat 10/23/08 10/23/08 ITLL

Whip Test 10/23/08 11/1/08 Outside of ITLL

Stair Test 10/23/08 11/1/08 ITLL

Drop Test 10/23/08 11/1/08 Outside of ITLL

Cold Test 10/28/08 11/1/08 ITLL

In-Class Mission Simulation test 11/4/08 11/4/08 ITLL

Launch Readiness Review Cards 10/30/08 11/06/08 Baker Study Room

Pre-Launch Inspection 11/11/08 11/11/08 ITLL

Launch Day 11/15/08 11/15/08 Windsor, Colorado

Budget: Weight

Objects Weight Per Unit (grams) Number of Units Weight Overall (grams)

Foam Core 5.95 1.45 8.6275

Thermal Sheets 1 1 1

Hobo H08-004-02 29 1 29

External Temperature Cable 20 1 20

Canon A570IS Digital Camera and Accessories 220 1 220

Heating System 202.7 1 202.7

9v Batteries 45.36 4 181.44

Timing Circuit 44.6 1 44.6

Solar film 3 1 3

Pipe for balloon attachment 50 1 50

Anti Abrasion Bushings 22.68 2 45.36

Paper clips 1 2 2

Total Weight 807.7275

Budget: Money

Objects Unit Price Number of Units Price overall ($)

Foam Core Provided 1.45 n/a

Thermal Sheets Provided 1 n/a

Hobo H08-004-02 Provided 1 n/a

External Temperature Cable Provided 1 n/a

Canon A570IS Digital Camera and Accessories Provided 1 n/a

Heating System Provided 1 n/a

9v Batteries Provided 4 n/a

Timing Circuit Provided 1 n/a

Solar film $5.75 1 5.75

Pipe for balloon attachment $4.00 1 4.00

Anti Abrasion Bushings $1.49 2 3.98

Paper clips $0.02 2 0.04

Total $13.77

Biggest Worries

Biggest Worries…Hobo Data Logger will not take complex

enough data for light intensity science experiment.

Solar Panels will malfunction, become detached, or break

Digital Camera will not work at altitude

Questions…?