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Last Words on CETI and some Space Travel Basics. HNRS 228 w/Prof. Geller. What I Will Cover. Final words about CETI Space Travel Space Environment Spaceflight Projects Spaceflight Operations. A Cartoon about CETI. What does a telescope do?. Collect electromagnetic waves

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Presentation Transcript
what i will cover
What I Will Cover
  • Final words about CETI
  • Space Travel
  • Space Environment
  • Spaceflight Projects
  • Spaceflight Operations
what does a telescope do
What does a telescope do?
  • Collect electromagnetic waves
    • Collecting ability proportional to the square of the diameter of the objective
  • Resolve electromagnetic sources
    • Related to the atmosphere, wavelength and curvature of the objective
  • Magnify surfaces of planets and the Moon
    • Magnification only of Moon, Sun and planets
optical telescopes
Optical Telescopes



different views of sun
Different Views of Sun

Sun in Hydrogen-alpha

Sun in X-ray

small radio telescope justification
Small Radio Telescope Justification
  • Radio science observations in the L-band
    • L-band lies in the 1400-1427 MHz region of the electromagnetic spectrum
    • detection of what astronomers call the 21-cm line of hydrogen
      • this is a portion of the hydrogen spectrum, in the radio region of the electromagnetic spectrum, which is generated by the neutral hydrogen clouds in the interstellar medium
small radio telescope justification1
Small Radio Telescope Justification
  • Observations in C-band, which is 4313-4338 MHz and 3788-3813 MHz
    • Radio science observations in the C-band allow for the radio emission examination of the moon, which acts as a body at a temperature of 200 K.
    • Students will be able to scan the moon, and detect the estimated 6000 joules of energy from the lunar surface.
gmu srt background
GMU SRT Background
  • Funding
    • National Science Foundation
      • education portion of grant won by Dr. Rita Sambruna
  • Order History
    • ordered first week of June 2002
      • stated 12 week delivery time
    • received 15 October 2002
      • damaged antenna
gmu srt background part ii
GMU SRT Background Part II
  • Order History
    • boxes damaged
    • FedEx insurance inspector called and visited to assess damage - refused claim
    • replacement parts to be shipped by vendor
  • Base assembled on roof
    • 1 November 2002
  • Remaining electronics and replacement antenna parts received 30 January 2003
small radio science demonstration projects
Small Radio Science Demonstration Projects
  • Undergraduate research
    • Steve Richardson
      • web site built with some results from data acquired using U of Indianapolis
      • prepared presentation for GMU “innovations” fair
      • prepared presentation for CPAC meeting at Bucknell University
space environment
Space Environment
  • Solar System
  • Reference System
  • Gravity and Mechanics
  • Trajectories
  • Planetary Orbits
  • Electromagnetics
solar system considerations
Solar System Considerations
  • Distance
    • From Sun
      • Energy, temperature, condensation of matter
  • Hostile Environment
    • Radiation (gamma ray)
    • Radiation (x-ray)
    • Radiation (UV)
coordinate reference systems
Coordinate Reference Systems
  • Geographic
  • Celestial
  • Precession
gravity and mechanics
Gravity and Mechanics
  • Orbits
    • Kepler
    • Newton
flight projects
Flight Projects
  • Mission Inception
  • Experiments
  • Spacecraft Classification
  • Telecom
  • Onboard Systems
  • Science Instruments
  • Navigation
  • Launch
  • Cruise
  • Encounter
  • Extended Operations
  • Deep Space Network