1 - NGA

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MIL-HDBK-8S0
x+xle-i .(JCS) A f’mrkmntal axis in a
x fligtt NW saw llStsyslem
of reckmg.lsr cxmrdiiaa; that Iii
onwf+sh dstarrr=btb6rlfJiu kdt(easl x-y ssalor-An instmmant that provides W
or west) of the rderarwa line are marked, and ycoonfiiaa h d~iial form horn
=P=w~aw,ti.w9@’L2.
anakrg dsta.
llw line ~ining the qmaife fxluoial marks
kithed_ which kstnoSfn6dyf Mdbl
to the fins d fligfd.
x~-rdlnate—~ abscissa.
x+orractlort-llra correction to en XdmcfJorL
x+llrectlotin efxetvsd diradirm in a
VimgulAion figure for which an
approximate value b obtained and treated
like an obaarved diraction in the adjustment
et the f~ure. The vmrtr of a Ieasl squares
adjtimant of e trianguleticm figure
aomaiimas requires the use of an xdiraclbn,
for which an approximate value is
obtainad by an inverea poshion
~Wfi, by Ihe solution of the lhraepoiti
pcbkrm, or by other means, and than
using the .xdirecticm in the adjustmard and
c&4.ainiig a cormctien (x-correction) for it,
whioh makes fl consistent wkh the ad@ted
values of the observed diredons.
x~leplaeemen!+ somponam of hnsge
dslaoament. When a @rt knaga is 10 be
Iesated ~ ooordkstae with respect to
rsctanguier axes. xdiaplasament
rep-ts the dskmce rrmvad in the xdiracfion.
x+notlon-in a atereopletting instrument,
tit Ikraar adjuxtmant appmx’bnatefy
parallel to a line conrwsting fwo projastor
stations; the path of this adjustment is, in
#fed, coin&dan! wiIh the flight line
between the twu relevant exposure
stations.
x-pearra\la+See absolute stareoscoplc
x+cele--(.lCS) On an ob~que photograph,
the scale akmg e line parallel to tha tme
horizon.
x-tilt-llre corqxrnen! of lift aboul the x-exis,
which is most nearfy in the direction of
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