What is azimuth and elevation




















Draw on the card the exact elevation angle required using a school compass or two lines at right angles and trigonometry tan function suggested at Start, Programmes, Accessories, Calculator, Scientific mode. This kind of home made device can be far more accurate that a small inclinometer sold in a DIY store. For large dishes a long plumb line can be used and sideways measurements used with tan tables to determine angles accurately.

Azimuth refers to the rotation of the whole antenna around a vertical axis. It is the side to side angle. Typically you loosen the main mount bracket and swing the whole dish all the way around in a deg circle. By definition North is 0 deg, East is 90 deg, South is deg and West is deg. North can also be called deg. Note that you find a satellite by pre-setting the elevation accurately and then swinging the whole antenna boldly in azimuth till the signal locks up - so an approximate azimuth angle is normally sufficient.

The dish pointing calculator gives the required azimuth angle both relative to true north and relative to magnetic compass north. When using a magnetic compass keep away from metal structures. This is obviously a problem in many cases both with the antenna steelwork and building structures. If, for example, you have a close angle clearance problem with say an adjacent wall then you may need to walk some distance away and sight towards the satellite from say 50 yards back.

Also consider long range views of say church towers that might provide an accurate azimuth reference. If you are in the northern hemisphere then remember that the sun rises in the east, reaches its highest angle at due south and sets in the west. If you are in the southern hemisphere then remember that the sun rises in the east, reaches its highest angle at due north and sets in the west. A contour line is a line through multiple points that have the same value.

For example, in an elevation map, someone would draw a line through all the points that were 10 m and another line through all the points that were 20 m. In addition to connecting points of the same value, the contour lines must also be of equal intervals on the same map. A contour line map where the contour interval is 10 m will have contour line values of 10 m, 20 m, 30 m, etc. The interval between the contour lines represents differences in elevation. Thus, a point that is between 10 m and 20 m contour lines will be a point that is between 10 m and 20 m above sea level.

Contour maps are useful for determining the lay of the land, such as determining which points are in valleys and which points are on hills. Elevation has a significant influence on climate. For example, high elevation areas tend to be colder than areas of lower elevation. Most of the human population on Earth lives within m or less of sea level.

The highest elevation at which humans live is the Tibetan plateau at an elevation of about m. Humans are not able to live at elevations much higher, since, above this threshold, the temperatures become too cold for farming and the oxygen levels in the atmosphere are too low for human life.

The lowest land elevation point on Earth is at the shores of the Dead Sea which are m below sea level. The highest point in the solar system is Olympus Mons, a shield volcano on Mars with a height of 26, m. Azimuth and elevation are both used to measure the spatial position of a datapoint. They are also both used to create maps and are relevant for fields like geology and navigation. Although there are similarities between azimuth and elevation, there are also important differences. These differences include the following.

Azimuth is a measurement of the position of an object along the horizon measured clockwise, or east-ward, from due north. Azimuth is measured in degrees and the word comes from a Medieval Arabic term which referred to roughly the same concept.

Azimuth is used in a variety of fields including astronomy, geology, and navigation. Elevation is the vertical distance of a point above sea level.

A datum equivalent to sea level is used on other planets which do not have oceans or open bodies of water to form a convenient base level.

The possible maximum and minimum elevation depends on the planet on which you live. The highest mountain on Earth is only m in elevation, whereas on Mars, there are volcanoes that are 26, meters in height. The answer is simple: because we will need to calculate and set them to take advantage of the Find option of the Planner to plan our ideal sun and moon shots in just seconds.

Azimuth and elevation are the two coordinates that define the position of a celestial body sun, moon in the sky as viewed from a particular location at a particular time. That position in the sky is defined by the azimuth and the elevation. The azimuth is the angle between North, measured clockwise around the observer's horizon, and a celestial body sun, moon.

It determines the direction of the celestial body. The azimuth is also represented on the map by the azimuth lines, and the elevation on the time bar.



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