Near Space Ballooning
Transcript of Near Space Ballooning
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The Joy of
High-AltitudeBallooning
Mark Rowzee & Geoff SchmitNaperville North High School
DuPage County Science Institute Day 2012Tuesday, 21 May 13
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High-Altitude
Ballooning
sending a small payload to the edge ofspace by means of a sounding balloon... and hopefully getting it back
also known as: space ballooning, near-space
ballooning
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Why Would You Do This?
fantastic STEM project
incorporates various disciplines (physics,earth science, weather, engineering,electronics, photography)
did you see the photos?
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Minimum Equipment
sounding balloon and helium
parachute
cut down mechanism
payload
camera
tracker
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Sounding Balloon
most expensive part
500 g 3000 g
we used 1000 g last year
2-m diameter at release
8-m diameter at burst
purchase from Kaymont
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Parachute
low cost: borrow akindergarten teachers
design challenge: keepparachute from getting
tangled
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Cut-Down Mechanism
FAA requires two cut-down mechanisms
#1: balloon bursts
#2: nicrome wire meltsthrough cord betweenpayload and balloon
controlled with timedrelay
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Payload
insulates and protectselectronics
low cost: take the onesitting in the back ofyour classroom
high-end: ripstop nylon
sewn shell with tie loopsaround insulationstructure or insulatedlunch bags
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Camera
still or video or both!
low cost: CanonPowerShot (replacefirmware), old Flip cam
high-end: GoPro HDHERO (still and video)
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Tracker
communicates payloadlocation
low-cost: SPOT SatelliteGPS messenger
high-end: GPS receiver
and APRS radiotransmitter & ground-based radio receiver
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Extra Goodies
sensors
experiments
lithium batteries
hand warmers
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Sensors
data loggers for
temperature, pressure,radiation
Arudino microcontrollerwith data logging shield
(stores data on SD card)and sensors
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Experiments
creativity runs wild
bacteria samples
gushers candies
this year?
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Other Stuff You Need
flight path prediction
weather report
launch site
launch procedure
recovery plan
luck
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Flight Path Prediction
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Weather
Earlier in the day is best chance to avoid badweather. In the lower levels it still is consistently asouthwest wind. As you go higher it turns a littlemore from the west and a little less south, but still ageneral West/Southwest flow most all the way up soI would guess somewhere in North Central Indianaas your landing point depending on how long it is in
the air (winds are pretty strong in the lower levels,so it might take off pretty quickly). Let me know ifyou have any questions. Zach Horn
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Launch Site
steer clear of the lake
El Paso, Illinois (2 hourssouthwest)
pavilion,powered outlets,
restrooms,open field,few power lines
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Launch Procedure
plan out what everyoneis going to do
takes us a long time toget ready to release
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Recovery Plan
sometimes you get the
GPS data and you find ithere
... and sometimes withAPRS receivers you can
catch the payload as itfloat to the ground
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Recovery Plan
... and sometimes youfind it here
it took 3 weeks to get itdown
everything survived
(except for the top ofthe tree)
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What You Get Back!
photos
videos
data
excited kids
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temperatureC
co
unts
time
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Postscript
One student has started his own
nonprofit, Space for All, to share his passionfor space exploration
Another student is an intern at Adler
Planetarium's Far Horizons project assistingwith their launches
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2012 Launch
NNHS Physics Club will help 3 elementary
and 2 junior-high groups developexperiment payload ideas
Day at NNHS Mission Control with real-
time tracking and video feeds on launch day
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