1 - NGA

●zimuthal equldlstmrt map pro]ectlon—
An szknuthal map projecfiin on which straight
Iiaa radiiting from the center or pole 01
projection represent oreal circles in Ihelr true
azimuths Irom fhal center, and !engths abng
those iinea am 01 exact scale. mia pro@cfion is
neither equal-area nor contormal.
szlmuttral map proJoctlon-A map
projection on whkh the azimuths or direcfiins of
all fines radiating from a central point or pole are
tha same as the azimuths or direcfiona of the
mrraapondirrg fines on the sphere. Afso called
zenlthel map projection.
●zimuthal orthomorphlc map proJactlon-
See ●teraographlc map projection.
azimuth-l. (JCS) Ouamities may be
expressed in positive quamifies increasing in a
cbckwise direction or in x-ly-cmtinales where
south and wesf are negative. They may be
referenced to true north or magnetic north
depend@r on lhe particular waapon aystam
used. 2. (sutveyir@ The horizontal dlrectiin 01 a
line measured cleckwise from a relarence pfane,
usually ths meridian. Also called forwsrd
Eztmuth to diflerenliale Irom back azlmufh.
3. [photogrammetry) Azimuth of lhe principal
plane. See also astronomic azimuth;
●zlmuth by attitude; back azimuth;
computed ●zimuth angle: dlractlon
method Of determining astronomic
azimuth; geodetic azimuth; grid azimuth;
Inarflal azimuth; Laplace azimuth;
magnatlc azimuth; method of repetitions
(derermlnatlon of astronomic azimuth);
MkrOMOter method (data rmlnatlon of
ISStrOnOmlC azimuth); normal section
ezlmuth; true azlmufh.
MIL-HDBK-850
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