Satellite is a body that orbits or moves round a planet e.g. the moon is a satellite of the earth Thus, the satellites or moons of the planet in our solar system are shown below
PLANET NO OF SATELLITE
Mercury None
Venus None
Earth 1
Mass 2
Jupiter 12
Saturn 9
Uranus 5
Neptune 2
Natural And Artificial Satellites
The moons that orbit the planets in the solar system are natural satellites, while artificial satellites are man-made bodies, which were launched by various countries, and now orbit the Earth, e.g.
COUNTRY YEAR OF FIRST LAUNCH FIRST SATELLITE
USSR 1957 Sputnik 1
USA 1958 Explorer 1
Australia 1964 Blue streak
France 1965 Asterix
Japan 1970 Osumi
China 1970 Dong fang hang 1
United kingdom 1971 Prospero X-3
India 1979 Rohini 1
Israel 1988 Ofeg 1
Nigeria 2003 SAT 1
EVALUATION
- Give the meaning of satellite and name two planets with their number of satellites
- State four examples of countries, year of first launch and the name of satellites launched by them.
Types of Satellite And Their Uses
- ASTRONOMICAL SATELLITES: They are used for observation of distance plants, galaxies and other outer space objects.
- BIO SATELLITE:These are used to carry living organism especially for scientific experimentation.
- OBSERVATION SATELLITE: They are used for geographical studies, photographing of areas, map marking.
- WEATHER SATELLITES: These are used to monitor the weather conditions in the atmosphere and supply the information to ground stations.
- COMMUNICATION SATELLITE:They are designed purposely to send information quickly from one place to another.
- RECONNAISSANCE SATELLITES: They are used for military or intelligence purposes, such as observing enemy location or troop movements.
- SPACE STATION SATELLITES: They are designed for human being to live on in outer space. They are only designed for periods of weeks, mouths or years.
- NAVIGATIONAL SATELLITES: These used radio time signals, it enables mobile receivers on the ground to determine their exact location.
EVALUATION
- What is reconnaissance satellite?
- Give four examples of satellite and their uses.
GENERAL EVALUATION
- Give the meaning of satellite and name two planets with their number of satellites.
- State four examples of countries, year of first launch and the name of satellites launched by them.
- What is reconnaissance satellite?
- Give four examples of satellite and their uses.
- Explain the term satellite and distinguish between natural and artificial satellites.
WEEKEND ASSIGNMENT
- _______ is a body that moves round the planet A. Earth B. Sun C. Satellite D. Stars.
- One of the following has the highest number of satellite in the solar system
- earth B. Saturn C. venues D. Jupiter.
- The following are examples of planet except ____ A. moon B. earth C. mass
- Jupiter.
- ___ are used for monitoring the dry and wet season of a particular area
- Astronomical satellite B. Weather satellite C. Bio satellites D. Communication satellite.
- Sputnik 1 was launched in 1957 by USSR while SAT 1 was launched in ___ by ___ A. 1970, Japan B. 1958, USA C. 2003, Nigeria D. 1988. Israel.
THEORY
- Explain the term satellite and distinguish between natural and artificial satellites.
- Explain how artificial satellites have improved whole world.
See also