# Further Highlighted Instructions For The Use Of The Table Containing Peak Parameters

The basic instructions for how to use the table of Distances, Azimuths and Elevation Angles Of Peaks ended with the parameters for San Gabriel Peak and Mt. Disappointment as seen from Mt. Wilson. This page shows in detail how to get those parameters by highlighting the relevant parts of the table.

If you are standing on Mt. Wilson,

go to the third row of the table.
San Gabriel Peak Mount Disappointment  Mount Wilson

San Gabriel Peak   0.4 2.5
Los Angeles   302.3 122.3
Mount Wilson   -5.1 -2.0

Mount Disappointment 0.4   2.9
Los Angeles 122.3   122.3
Mount Wilson 5.1   -0.9

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

The entries there say that
Mt. Wilson (the peak on which you are standing)
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

is located in Los Angeles County
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

on the topo map called Mt. Wilson.
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

The first column to the right gives

the observed parameters of San Gabriel Peak.
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

Its distance from Mt. Wilson is 2.5 miles,
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

its azimuth is 302.3°, which is 32.3° north of due west, and
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

its elevation angle is 1.9°.
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

The next column gives

the parameters for Mt. Disappointment.
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

Because the azimuth of Mt. Disappointment is exactly the same as for San Gabriel Peak, and
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

the distance to Mt. Disappointment is greater, Mt. Disappointment is directly behind San Gabriel Peak.
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

Since the elevation angle is a full degree lower,
San Gabriel Peak Mount Disappointment  Mount Wilson

Mount Wilson 2.5 2.9
Los Angeles 302.3 302.3
Mount Wilson 1.9 0.9

Mt. Disappointment cannot be seen behind San Gabriel Peak.

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