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Space Balloon – 999 Project. Michio Inoue Space Online School 02/05/2011. Galaxy Express 999. Leiji Matsumoto. Earth Orbiting Satellites. Geo-stationary orbit: 36,000km (22,000mi) ISS: 350-400km (220-250mi). GPS: 20,200km (12,550mi). very expensive!. Gateway to Space. - PowerPoint PPT Presentation
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Space Balloon – 999 ProjectSpace Balloon – 999 Project
Michio InoueSpace Online School
02/05/2011
Galaxy Express 999Galaxy Express 999
Leiji Matsumoto
Earth Orbiting SatellitesEarth Orbiting Satellites Geo-stationary orbit:
36,000km (22,000mi)
ISS: 350-400km (220-250mi)
GPS: 20,200km (12,550mi)
very expensive!
Gateway to SpaceGateway to SpaceSpaceShipOne: 100km
– Official “edge of space”– First commercial vehicle
to go to “space”– $200,000/person
Balloon: 32km (20mi)– What our focus today– Reachable with <$1000
Airplanes: 10km (6mi)
Space BalloonsSpace Balloons Becoming popular after 2006 Done by students and hobbyists
– CU Spaceflight (Cambridge University)– SABLE (Canada)– MIT undergrads– Students in Spain – etc. etc.
1,100 ft.185min
69,700 ft.148min.
Descent with parachute
Launcht=0min.
Canadian group (SABLE) August 2007
4,700 ft6min.
22,900 ft
117,597 ft (max)140min.
Photo: Nikon Coolpix P2 http://www.sbszoo.com/bear/sable/sable3.htm
30min.
76,900 ft105min
7,600 ft180min.
45,400 ft.157min.
Retrieve
0 ft186min
Balloon on the GroundBalloon on the GroundKCI 1200 – popular weather balloon
– Flaccid Body Length: 226 cm (7.4ft)– Average Weight: 1200 g (2.4lb)
http://www.sbszoo.com/bear/sable/sable3.htm
Balloon before ReleasingBalloon before ReleasingGross Lift: 3440 g Payload: 1050 gDiameter: 179 cm
Rate of Ascent:320 m/min (12mph)
Parachute
Balloon
Payload
SystemSystem Example: by UK
High Altitude Society
Images/VideosImages/VideosCameras programmed to take pictures
at a fixed intervalVideo always onNo live broadcast
Even Teddy Bears Went to Space! Even Teddy Bears Went to Space!
http://www.dailymail.co.uk/sciencetech/article-1091896/Out-world-British-teddy-bears-strapped-helium-weather-balloon-reach-edge-space.html
WhatWhat’’s it like at 32km?s it like at 32km?
LayerLevelName
Heightkm (ft)
BaseTemperature
°C (F)
BaseAtmosphericPressure (Pa)
0 Troposphere 0 +15.0 (59) 101,325
1 Tropopause 11 (36,000) −56.5 (-70) 22,632
2 Stratosphere 20 (65,000) −56.5 (-70) 5,474.9
3 Stratosphere 32 (105,000) −44.5 (-48) 868.02
4 Stratopause 47 (154,000) −2.5 (28) 110.91
5 Mesosphere 51 (167,000) −2.5 (28) 66.94
6 Mesosphere 71 (233,000) −58.5 (-73) 3.96
7 Mesopause 85 (279,000) −86.2 (-123) 0.37
How Does It Come Down?How Does It Come Down? It “pops” at the bursting altitude: 33.2 km How big is the balloon?
– Ideal gas law:
– At the ground level D0 = 1.76 m
p0 = 101325 Pa
T0 = 15 C (= 288 K)
– At 32km p1 = 868 Pa
T1 = -44 C (= 229 K)
Diameter at Burst: 8.6 m! (28 ft)
or
DescentDescent Maximum speed:150 mph
– Parachute slows it down
Balloon predictor– Time– Launch site– Ascent rate– Descent rate
predicted GPS track
Just an indicator
http://nearspaceventures.com/w3Baltrak/readyget.pl
RetrievalRetrieval The balloon travels about 20 miles horizontally A transmitter in the payload box transmits
its GPS location
Retrieved DataRetrieved Data GPS track, temperature, pictures, movies, etc.
Mission IdeasMission IdeasAim to launch balloons every 6 months
– 2.3 lbs payload, iPhone as a primary computerScience
– “Would the cockroach survive at 30km?”– “Boiled egg vs raw egg”– Potato chips– Ping-pong ball– Wind, Temperature, GPS position
Gliding from space (2011)Live images/videos (2012)Staying aloft (2013)
Questions?Questions?
http://abcnews.go.com/Technology/slideshow/paper-airplane-launched-edge-space-returns-photographs-earth-12121525
paper
Vulture 1
http://www.theregister.co.uk/2010/11/17/vulture_cad/
3 ft
straws
Pilot
"cockpit "
–データをとって送信する iPhone用のプログラムの開発 ← 一番時間がかかる
–パラシュートの折りたたみ&展開実験(ビルの屋上から)
–着地の際の衝撃の評価 第2回公開実験:2011年秋
–小型 HDカメラの撮影映像を送信する–パラシュートに代わる飛行体による滑空帰還
第3回公開実験:2012年春–ライブ映像送信と滑空帰還(その2)–高高度(地上20キロ辺り)の滞空実験