Hubble Jr. Conceptual Design Review Holly Zaepfel, Rachel Small, Kyle Norman, Ryan Del Gizzi, Chris Everhart, Evan Levy September 21, 2006

Mission Statement and Goals Primary Mission: The primary mission of Team Hubble Jr. is to collect data on the amount of sunlight present in various stages of the atmosphere by use of a photometer, thereby demonstrating that the amount of sunlight present varies with altitude. We also hope to recover data pertaining to temperature and humidity from our HOBO data logger as to see the relationship between these factors and the levels of the atmosphere. Secondary Mission: To successfully integrate a small field telescope with a video camera and create a device that will cause the telescope to constantly zoom in and out, therefore providing our team with video footage from which we can obtain close-up, clear pictures. This experiment will also allow our team to discover the functionality of a monocular lens as a telescope in near space.

Team Hubble Jr. Building and Testing Holly & Rachel BudgetScheduling Organization and management PowerPoint and document integration Ryan & Kyle Design and assembly detail Illustration of design Block diagram Chris Hardware Special features of design Evan Testing specifics Launch program, FFR Injury prevention, safety Launch day sequence Task Chart

Design Overview Modular Based Digital Camera –Responsible for Taking Still Photos Telescope (Digital Video Recorder + Monocular) Digital video recorder –can manipulate the monocular zoom adjustment in flight, ensuring at least some clear frames in the video –using a video editor we can print these single clear frames off as magnified still photos. HOBO Data Acquisition –The HOBO will record humidity and internal/external temperature. This data will serve to produce a simple model of the atmosphere. Photometer –The photometer will record changes in the brightness of the atmosphere. Coupled with the HOBO data, a simple model of the atmosphere can be created. Constructed from foam core –Cube shape with hot glue and aluminum tape fastening the cube together. Insulation –The insulation will not only keep the “guts” of the satellite warm, but will help pad sensitive equipment inside the satellite during balloon burst and landing. Mounting of components –The cameras (one with the monocular) will be mounted to the interior walls of the satellite. A hole cut in the wall(s) so all of the necessary sensing components can “see” outside. The electronics will be mounted on pieces of foamboard running perpendicular to the floor and ceiling of the satellite. The batteries will be mounted as close to the flight string as possible while evenly distributing the weight throughout the satellite. Flight String –The flight string will run through a piece of PVC tubing through the center of the satellite.

Hubble

HubbleJr.HubbleJr.

Approximate weight: 700g

Hardware Structure System (Provided By Space Grant): –Foam-Core material –Aluminum tape Telescope System: –Meade Instruments 7X18 Travel Monocular –VCamNow camcorder –(2) AA batteries or integration with other power systems –2Gb SD Memory Card for on- board video capture –USB cable for video recovery upon landing Still Camera System Primary (provided by Space Grant) –Sony ELPH Still Camera Still Camera System Secondary (tentative): –Suprema mini digital camera –8 Mb of on-board storage –USB cable included –3 Volt CR2 Lithium Battery Weather Measurement/Monitoring System (Provided By Space Grant): –HOBO H Data Logger –(2) Temperature sensor leads (one external, one internal) Photometer System: –TSL230 Photometer –Microchip PIC18F2620 Microcontroller System –3 Volt Power Supply (Battery Pack) Thermal Protection System (Provided By Space Grant): –Heater Circuit –(3) 9 Volt Batteries Power System/Electronic Connections: –Batteries –Switches –Miscellaneous Wiring and Solder Flight Computer/Experiment Control System: –Velleman MK Timer based control circuit –HOBO H Data Logger w/ Temperature Sensors –Microchip PIC18F2620 Microcontroller

Special Features Still Cameras Canon Elph –Provided for us –Operated by timing circuit Suprema Mini Digital Camera (tentative) –Capture images of ascent flight, balloon burst, whip phenomena, decent –Important that power doesn’t fail, otherwise pictures are lost –Programmable timer in Microchip PIC18F2620 will have camera take pictures at intervals of 45 seconds, providing sufficient data and keeping the camera from timing out and turning itself off. –Resolution 320X240 (compressed VGA) will allow for 208 pictures Allows for possible continuous image capturing from takeoff to landing Functionality will need to be tested under simulated flight conditions Telescope System Telescope –Light weight field monocular 7x zoom capability Field view of 288 feet at 1,000 yard Children’s mini camcorder – 2 GB onboard SD memory card Continuous recording for as long as the camcorder’s battery will allow Photometer Components –Microchip PIC18F2620 Microcontroller –TSL230 Photometer Purpose –Measure the level of light scattered by air molecules and upper atmospheric dust particles –Data recorded onto on – board flight computer (microcontroller) Reason for choosing a photometer –Versatile –Low cost –Stable operation in varying temperatures

Functional Block Diagram

Other Important Information We will develop and test an interface between the two components as well as the appropriate software coding to operate this as an integrated unit. Since most of our equipment operates on 3 volts, we may develop a master battery pack of 1.5 Volt AA batteries ganged together in sequence to provide that voltage to all items that need it. We have located specific models and manufacturers for the hardware specified in our proposal. However, we reserve the right to alter this information as needed. Some components may need to be adjusted during the testing phase.

Budget

Budget Plan Manager: Holly Zaepfel Strategies to stick to budget plan, not go over allotted budget –Holly will be only person to make purchases –In charge of keeping the budget, detailed records of purchases –No purchases without full consent of each team member –Unless items are under $5, more than 3 items will not be purchased in the same day so as not to exhaust funds too quickly or before being sure of the functionality of purchased items

Schedule September 21st: CoDR presentation due 22nd: Team meeting, 11:30am 28th: DD Rev A assigned 29th: Team meeting, 11:30am, begin prototype construction October 5th: DD Rev A due 6th: Team meeting, 11:30am, begin purchasing and ordering hardware 13th: Team meeting, 11:30am 17th: Begin construction of BalloonSat, CDR presentation due, DD Rev B due 20th: Team meeting, 11:30am, work on construction 22nd: Team meeting, work on construction 25th: Subsystems test 27th: Team meeting, 11:30am, Drop and Whip Tests 30th: Cooler Test November 1st: Stair Test 3rd: Team meeting, 11:30am, test final design 9th: LRR Cards due, DD Rev C due 10th: Team meeting, 11:30am 11th: LAUNCH DAY!!! 17th: Team meeting, 11:30am 24th: Team meeting, 11:30am 26th: Team meeting 30th: DD Rev D due December 4th: Final team meeting 5th: Final presentation due

Testing We will complete six tests that will challenge our satellite. 1.The drop test- withstand flight and landing turbulence 2.The stair test- withstand flight and landing turbulence 3.The cooler test – to determine whether or not the satellite can with stand those particular conditions. 4.The subsystems test – to determine whether our telescope, digital camera, HOBO and photometer are working. The test consists of making sure each subsystem works while walking around the campus and subsequently viewing the data. 5.The whip test - after the test we will examine the structural integrity and check systems to see if they’re operational. 6.The mission simulation test - during this test we will run a simulation program that ‘simulates’ a flight for the systems.

Safety safety is our first priority use proper safety equipment use safety goggles and/or gloves if needed wear appropriate clothing on launch day first aid kit will be on hand three goals –use Common Sense –if unsure, ask –no team member is to do a task that may endanger the team

Launch Program & Checklist Flight Readiness Review (FRR). During the FRR we will have a mission briefing where we will discuss our mission goals. Secondly, we will create a flight plan. Launch Site-Winsor, CO Schedule –7:00 AM Arrival at Launch Site –7:30 AM Final Check of Module –8:00 AM Attach Module to Flight String –8:30 AM Breakfast –9:00 AM Lift-Off of BalloonSats –9:30 AM Begin tracking and Recovery of BalloonSats –2:00 PM Leave for Boulder Recovery Procedures-After launch, our team will track the balloon from launch to touchdown. Launch Day Checklist -Pre-Flight Checklist -Latitude -Longitude -Elevation -Launch Time -Launch Site Conditions -Verify String is secure on the line -Connect module to the rest of the balloon -Check final systems run clear -Boot up main power and subsystems -Open camera lens -Main Power Switch -Begin raising balloon -Raise balloon until module is in the air -Record Launch time -Recovery