Gateway To Space ASEN ASTR 2500 Class 17
- Slides: 45
Gateway To Space ASEN / ASTR 2500 Class #17 Colorado Space Grant Consortium T-18
Gateway To Space ASEN / ASTR 2500 Class #15 Colorado Space Grant Consortium T-18
Today: - Announcements - Mid Semester Team Evaluations - Launch Vehicles – Part II + One Minute Report Questions - Orbits and Mission Design – Part I - Launch is in 18 days
Announcements… Grades - Posted - Everything up until now - Don’t panic - Only half* of your grade has been completed 4
Cameras Ready… - Camera must be in CAMERA mode - Script always runs if lock switch is enabled, pictures every 10 seconds - No spares - SHUTTER > DISP > MENU > POWER = OFF 5
Cameras Ready… - Camera must be in CAMERA mode - Script always runs if lock switch is enabled, pictures every 10 seconds - No spares - SHUTTER > DISP > MENU > POWER = OFF 6
Mid Semester Team Evaluations… - Due at the start of class on Thursday - Team of six has 1200 points 200 200 200 Total = 1200 points 7
Mid Semester Team Evaluations… - Say not everyone is pulling their weight 350 50 150 200 300 Total = 1200 points 8
Mid Semester Team Evaluations… - I take everyone’s scores and do the math, taking into account how self scoring compares to team score for you 300 350 400 350 300 200 50 50 50 400 75 25 150 150 150 200 150 200 200 200 350 300 300 150 300 9
Thursday… Orbits and Mission Design – PART II Maybe Spider Mid Semester Team Evaluations due in class 16 days to launch Colorado Space Grant Consortium
Next Tuesday… Rest of Orbits (if any) Pre-launch inspections – bring hardware Possible 15 minute Ardunio Tips LRR Cards handed out 11 days to launch Colorado Space Grant Consortium
Next Thursday… In-class Mission Simulations Possible Launch Logistics LRR Review Info 9 Days to launch Colorado Space Grant Consortium
Launch Vehicles – Part 2 ASEN / ASTR 2500 Class #17 Colorado Space Grant Consortium T-18
Orbits and Mission Design – Part 1 ASEN / ASTR 2500 Class #17 Colorado Space Grant Consortium T-18
Orbits: A Brief Historical Look
Earth, the Moon, Mars, and the Stars Beyond A Brief Discussion on Mission Design
Universal Gravitation, Applied: • When in space why do you float? i. e. Weightlessness
Universal Gravitation, Applied: • How does this apply to orbits?
Questions: • How fast can you throw a snowball? - A baseball? - A shot put? - A Subway sandwich out a moving car? • Could you throw any of these in to an orbit? - How fast would it have to be going?
Questions: • Let’s figure it out… v is velocity G is Universal Gravitational Constant M is mass of planet or satellite R is radius of planet of satellite
Atmosphere: • How about throwing something into orbit on the moon? golf ball
Atmosphere: • Let’s figure it out… v is velocity G is Universal Gravitational Constant M is mass of planet or satellite R is radius of planet of satellite
Orbits: A Brief Historical Look Arthur C. Clarke Discovered This Orbit
Ancient Orbit History: “ORBIT” from Latin word “orbita” orbitus = circular; orbis = orb • 1800 B. C. Stonehenge - Study of the vernal equinox
1500 B. C. : Egyptians and Babylonians • • • Written evidence of stellar observations Solar Calendar of 365 days Time divided into 60 even units
350 B. C. : Greek Thoughts Aristotle • Said earth is center of the universe • Dominated scientific thought for 1800 years
Start of the Heliocentric Model: 1543 A. D. Nicholas Copernicus • Said Sun-centered rotations • Measurements crude but thinking shifts • Didn’t release findings until the end of his life
Orbit History : • 1580 A. D. Tycho Brahe • Accurate measurements of planets (Mars) as a function of time • Even though telescope had not been invented
Orbit History : • 1610 A. D. Galileo Galilei • Good friends with Copernicus • Observations with TELESCOPE reinforced • Discovered Venus has phases
Orbit History: • 1600 A. D. Johannes Kepler • Used Tycho’s careful Mars observations to smash Aristotle theories • Presented 3 laws of planetary motion • Basis of understanding of spacecraft motion • However, “Why was not understood” • Calculus?
One Minute Report… - Gottfried Leibniz Isaac Newton 31
Orbit History: Kepler’s 3 Laws of Planetary Motion: 1. All planets move in elliptical orbits, sun at one focus
Orbit History: Kepler’s 3 Laws of Planetary Motion: 1. All planets move in elliptical orbits, sun at one focus
Orbit History: Kepler’s 3 Laws of Planetary Motion: 2. A line joining any planet to the sun, sweeps out equal areas in equal times
Orbit History: Kepler’s 3 Laws of Planetary Motion: 2. A line joining any planet to the sun, sweeps out equal areas in equal times
Orbit History: Kepler’s 3 Laws of Planetary Motion: 3. The square of the period of any planet about the sun is proportional to the cube of the planet’s mean distance from the sun. Planet P (yr) a (AU) T 2 R 3 Mercury 0. 24 0. 39 0. 06 Venus 0. 62 0. 72 0. 39 0. 37 Earth 1. 00 2 T = 3 R Mars Jupiter Saturn 1. 88 11. 9 29. 5 1. 52 5. 20 9. 54 3. 53 3. 51 142 141 870 868 If you can observe the period of rotation, you can determine the distance
Orbit History: • 1665 A. D. Isaac Newton • At 23, plague while at Cambridge • Went to be one with nature • He studied gravity • Discovered “Newton’s Laws of Motion” • 1666, he understood planetary motion • Did zip for 20 years until Edmund Halley
Newton’s Laws: 1 st Law. . . Body at rest stays at rest, a body in motion stay in motion 2 nd Law. . F=m*a 3 rd Law. . . For every action, there is an equal and opposite reaction
Newton’s Laws: Newton Continued. . . • 1687, Principia Published • Law of Universal Gravitation (Attraction)
Newton’s Laws: Newton Continued. . . • 1687, Principia Published • Law of Universal Gravitation (Attraction)
Universal Gravitation, Applied: • When in space why do you float? i. e. Weightlessness
Types of Orbits: Orbits are conic sections: • Circle • Ellipse • Parabola • Hyperbola From Kepler’s Law, the central body is at a focus of the conic section
Kepler: Kepler’s Laws. . . Orbits described by conic sections Velocity of an orbit described by following equation For a circle (a=r): For a ellipse (a>0): For a parabola (a= ):
Questions: • Let’s figure it out… v is velocity G is Universal Gravitational Constant M is mass of planet or satellite R is radius of planet of satellite
Earth, the Moon, Mars, and the Stars Beyond A Brief Discussion on Mission Design
- Robert asen
- Astr greek or latin
- Trans neptunian objects
- 5-a-day language review: week 7
- Astr
- Astr
- Astr
- Astr
- Astr twins
- James webb nasa space telescope launch
- Cronou
- Syarat menjadi world team herbalife
- Taski swingo 4000 error codes
- Cuanto gana equipo get herbalife
- Cop2500
- Cop 2500
- Cop 2500
- 2500*5001
- The tension in the guy wire is 2500 n
- 350000/2500
- A sealed 2500 cm3 flask
- Vists 2500
- Cti 2500
- 20000000/2500
- 3000+2500+2000
- A 190 000 w engine can accelerate
- 20000000/8000
- 500 vp herbalife
- Sebuah mesin bila dioperasikan selama 4 jam
- Qrt aneel
- 2500/4/40
- 2500/200000
- Unscented trajectory chapter 5
- Space junk the space age began
- Camera space to world space
- Unscented trajectory chapter 5
- World space computer
- Todaysclass
- Package mypackage; class first { /* class body */ }
- Difference between abstract class and concrete class
- What is the lower boundary of the modal class
- Class i vs class ii mhc
- Difference between abstract class and concrete class
- How to get class width
- Stimuli vs stimulus
- Discriminative stimulus