How Earth Moves | satellite imagery คือ

How Earth Moves

นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูความรู้เพิ่มเติมที่นี่

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Jake’s video about The Curiosity Box:
Minute Physics on why December days are the longest:
StandUpMaths on calendars and leap days:
Tom Scott on the Equation of Time:
My video on what would happen if the Earth stopped spinning:
GREAT visuals showing how Earth moves around the sun:
George Washington’s birthday:
realtime sub solar point location:
Lahaina noon images from the Oahu Astrophotography club:
great solargraph and analemma images:
interactive seasons and ecliptic simulator:
Nasa video of seasonal movement of Earth:
Tropical year:
Earth rotation specifics:
How Earth moves through the universe:
minute physics on cab:
PBS spacetime on the cosmic microwave background:
CMB rest frame:
wikicommons images:,_Florida/media/File:South_Beach_20080315.jpg
To explore space, I highly recommend these:
music by
Awesome 3D graphics by Eric Langlay:
Lame 2D stuff by me.

How Earth Moves

How Satellite Works (Animation)

Satellite AnimatedChemistry KineticSchool
0:00 Kinetic school’s intro
0:18 Satellite
0:32 Types of satellite orbits By Inclination
1:15 Launching an artificial satellite
2:39 How satellite works
3:43 Types of satellite orbits by inclination
6:08 Types of satellite orbits by Altitude
8:13 Types of satellite orbits by Shape
9:46 Types of Artificial satellite

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A satellite is any object that revolves in a curved path around a planet. 
There are two major types of categorization when it comes down to satellites, one is natural Satellite and the other is artificial satellite.
A Natural Satellite is any celestial body in space that orbits around a larger body.
Satellites that are made by people and launched into orbit using rockets are called Artificial Satellites.
TYPES OF satellite orbits:
By Inclination,
Equatorial orbit:
An equatorial orbit is when the satellite rotates in an orbit directly above the equator,
usually in a circular path. with an equatorial orbit, the angle of inclination is 00 degrees.
It has an inclination of 0°.
Inclined orbit:
Inclined orbits are virtually all orbits except those that travel directly above the equator or directly above the North and South Poles. The angle of inclination vary between 0 to 180 degrees.
Polar orbit:
A polar orbit is when the satellite rotates in a path that takes it over the North and South Poles in an orbital pattern that is perpendicular to the equatorial plane.Polar orbiting satellites follow a low altitude path close to earth’s surface, passing over and very close to both the North and South Poles.
The angle of inclination of a satellite in a polar orbit is nearly 90 degrees.
On the basis of the altitude from Earth, the types of orbits are classified into:
• Low Earth orbit (LEO):
Low earth orbit satellites operate at a distance of about 160 to 2,000 kilometres above the earth’s surface.
It takes approximately 90 to 120 minutes to circle the Earth.
• Medium earth orbit (MEO):
Medium earth orbit is the region of space around the Earth above low Earth orbit and below geostationary orbit.
The orbital periods of Medium earth orbit satellites range from about two to six hours.
This satellite operates at altitudes between 2,000 kilometers and 35,786 kilometers above the earth’s surface.
• Geostationary earth orbit (GEO):
A geostationary satellite is an earthorbiting satellite. it placed at an altitude of approximately 35,786 kilometers directly over the equator, that revolves in the same direction the earth rotates that means west to east.
This satellite takes 24 hours to orbit the Earth.
Orbits are also classified into two types on the basis of the shape:
• Circular orbit
• Elliptical orbit
Circular orbit:
Circular orbit is the orbit with a fixed distance around the barycenter, that is, in the shape of a circle. This orbits has an eccentricity of 0.
There are several types of circular orbits and they include:
• Geostationary Orbit
• Polar Orbit
• Equatorial orbit
Elliptical Orbit:
An elliptical orbit is the revolving of one object around another in an ovalshaped path called an ellipse.
The eccentricity of an elliptical orbit is greater than 0 but less than 1.
Sometimes these satellites are closer, and at other times they are farther away from earth.
The closest point a satellite comes to Earth is called its perigee.
The farthest point is the apogee.
The most common example of elliptical orbit is highly elliptical orbit.
Types of artificial satellites
Navigation satellite:
A satellite navigation system used to determine the ground position of an object. 
It determines the geographic location of ships, aircrafts, or any other object.
It is also vital to military forces.
It is often used for gathering intelligence used for military purposes or as a military weapon.
Weather satellite:
Weather satellites are primarily used
✓ to monitor the weather and climate of the Earth.
✓ to predict daily weather conditions, such as temperature and rainfall.
✓ to monitor how weather conditions, like storms, hurricanes, cyclone, tropical storms,
develop and change over time.
Communications satellite
The communication satellite is a satellite that transmits the signals such as telephone, television, radio, internet signals over long distances.

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How Satellite Works (Animation)

Satellite Images Visual Interpretation Online Training Course

In this course you will learn how to recognize the contents of satellite images by performing visual interpretation and analysis for various civilian features and contents exist in these images. Visual interpretation will be learned through applying the visual interpretation elements on different features in satellite images. The interpretation elements which will be learned and applied are [shape, size, shadow, color, tone, texture, pattern, height and depth, site, situation, and association].

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For more information about the courses, the certificates and to watch free samples of the lectures, please visit our portal, Also, to get notified with our offers, you can like us on our Facebook page and subscribe to our YouTube channel.

Satellite Images Visual Interpretation Online Training Course

Import Google Satellite Imagery to QGIS (Version 3.x)

Google Satellite imagery is widely used for many purposes. This video tutorial describes how to load Google Imagery into QGIS.
Stepbystep instructions:
All courses at are currently $10!
Visit for more content and courses
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Import Google Satellite Imagery to QGIS (Version 3.x)

Satellites Use ‘This Weird Trick’ To See More Than They Should – Synthetic Aperture Radar Explained.

Synthetic Aperture Radar is a technology which was invented in the 1950’s to enable aircraft to map terrain in high detail. It uses the motion of the radar and some fancy mathematics to get much higher detail images than should be possible from an antenna small enough to fit on an aircraft.
This process has been extended to satellites and applies to not just the earth, but to other terrestrial bodies in the solar system, notably Venus and Titan which are eternally shrouded in clouds.
For further reading I suggest looking at NASA’s SAR Handbook
And if you want to look at real SAR data the Alaska Satellite Facility has lots of public data
Commercial images in this video come from
Capella Space
Ursa Space

Satellites Use 'This Weird Trick' To See More Than They Should - Synthetic Aperture Radar Explained.

นอกจากการดูหัวข้อนี้แล้ว คุณยังสามารถเข้าถึงบทวิจารณ์ดีๆ อื่นๆ อีกมากมายได้ที่นี่: ดูวิธีอื่นๆInvestement

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