Satellite geodesy,

1

• Satellite geodesy,
• Fall 2007.

C.C.Tscherning, University of Copenhagen,
2007-10-25
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Satellite Missions

• (1) CHAMP
• (2) GRACE
• (3) GOCE
• (4) ENVISAT
• (5) CRYOSAT

C.C.Tscherning, 2007-10-25.
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Satellite positioning

• GPS
• -static
• -kinematic, differential.

C.C.Tscherning, 2007-10-25.
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Teachers, place

• Teachers C.C.Tscherning, Louise Sandberg
  Sørensen and guest-lecturers.
• Textbooks
• Kaula Theory of satellite geodesy, 1966.(Dover
  Reprint).
• Seeber Satellite Geodesy, de Gruyter, 2003.
• Artikler (udleveres).
• Place Monday 13.15-17 and Thursday 9.15 13.00,
  room 061.

C.C.Tscherning, 2007-10-25.
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Satellite Geodesy

• Satelliteorbits Kepler-orbits
• Perturbed Kepler-orbits, resonans.
  
• Time and coordinate-systems
• Signal-propagation, refraktion.
  
• Orbit pertubations (Sun, Moon, drag)
  
• Orbit-determination and representation

C.C.Tscherning, 2007-10-25.
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Satellite Geodesy

• Statistical concepts. Least-squares.
• Observation methods. Geodetic satellites.
• GPS, GPS Data-processing
• GPS. Differential and kinematic
• Radar-altimetri
  
• Gravity Gradiometri (SGG),
• Visit Onsala Observatory, (all day).
• Satellite-to-Satellite tracking CHAMP.
  
• Applications.

C.C.Tscherning, 2007-10-25.
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Satellite Geodesy -Purpose

• The course aims at
• developing an understanding of the application
  of satellites for positioning on the Earth and in
  space
• as well as of the modelling of the gravity field
  of the Earth.
• And give basis for Course
• description of geodetic coordinate systems,
• the theory of satellite orbits
• signal propagation

C.C.Tscherning, 2007-10-25.
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Satellite Geodesy- Teaching (1)

• The course aims at giving the participants
  methods and tools so that they may
• explain the relationship betweeen the gravity
  field and the determination of satellite orbits.
• compute Kepler-elements from position and
  velocity considering linear time-variations
• compute changes in position as a function of
  change of coordinate-system and change in time.
• compute changes of observed distances or
  directions due to refraction as well as the
  influence of non-gravitational forces on the
  satellite orbit.

C.C.Tscherning, 2007-10-25.
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Satellite Geodesy Teaching (2)

• use the least-squares method for position
  determination base don distance measurements.
• explain how Doppler and distance observations may
  be used
• explain how a survey is planned and how GPS is
  used for position determination.
• explain how distance determination from satellite
  or other radar measurements may be used for the
  determination of the height of the surface of the
  Earth or water-covered surfaces as well as their
  time-variations.
• describe how satellite-orbits and measurements in
  and between satellites may be used for the
  determination of the gravity field of the Earth.

C.C.Tscherning, 2007-10-25.
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Satellite Geodesy Teaching (3)

• Requirements for obtaining 12 the grade is
  given for an excellent performance,
• demonstrating af fulfilment of 5 of the teaching
  goals, with no or few deficiencies.

C.C.Tscherning, 2007-10-25.