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vartomster+trr instrument for ccr~ring
~-~ fo-! aspecialty of tha Earfh’s
megnatic bakt.
vactograpM stwaowopk photogmph
~- of two Stpadnpaad imagaa that
pdarfxe fight inpfanae 9Wapart. W?rarrfJwwa
imagcm are viewed through Pdardd apsrdades
wifhfha @adxatii mmaaftightnn@a, an
impraasbrr d dapth fa dfdneri.
Vector Product Format (VPF)-A 9aorafatii
data structure daaigmd fm the
Ixeviekrn C4vader pmduda en CD-ROM madii
and manff?ufalad fn G~f Irdormetbn
Syafema envfmnmants.
Vaotor Pmduat Standard (VPSM aulte
of uaaJ aysranl Oriardad atmldards
erwornpaseing VPF d~itiiing conventkms, Wing,
facdum atfdtrdng and ooding. see ab Vector
Product Format (VPF).
vaotor data-CIata which represents aach
cartographic feature by an enti7y description
(feature sode) and a spatial axtent (gaogmphii
pesitii). Gtrograph= poairien mey ba m
~. nmarwmd (horizontal poaitiin onty) or ihreadtinabnaf
(incfudhg alevaticm). Featurea are
Catagm’izad se point, tine, or area faalurea. The
poaitii of a peint faattme is d~ bye
tingle cowdkude @r (or triplaf for fhms
dimanskrad date). The e+fii mxfant of ● Iina
feature Is daawbed ty a string of cOOrcfiitea of
polnta lying along the finabvhihip~ ~nt C4 en
area feature k ~
boundary aa e fine featura, Vader data may be
sterad in a ~uential, 4 chain node, or a
tefmlogical data atruckxe.
vector map product (VtAP)-A ganaric term
uaad to dasmiba an ataUrOnk map d~fay
product, m vador form. The VMP coufd be tiie
~m (--). pof~s or arrm fmfygon
dafiiad araaa, diapfayad aa such or
avrrbofizad. The f6atmaa mav be attrftarfad aa
ki aurtece I-natarid. Structuraf”cmpasirion, or
radar aignifkanoe. For visual displays color fill
aefhvam may be required.
vaotor quantlzatlon—A Ioaay compression
krchniie in tiih bbcka of data ara matched
to a limited sat of defmad Lrfoc& calfad
ccdewords.
vector refresh dleplay-A cethede ray tuba
on which the image ia dkpfayad aa e vaster and
MIL-HDBK-850
. ..-
L 75
whiih mu.s4ba mtrashad by a new pass of the
eladmr baam about SO timaa a sacond.
vactorlnl ●ngla-l%a angle betwean the
fbrad Ii b which the diractien ia referred and
the mdiua vactcv. sea ake polar
coordlrratea.
vector-1. A quartity ~ing both
magniluda araf dkacfbn. 2 (data StnJcfura)
A data strudua which ssqhalzaa peatfii.
Hmmgwmam write ●m pehla, lines, and
@YI@S. 3. A ~=fd ins segment, wffh
magn~da comrnmrfy mpraaantad by lha
ooerdmetaa for the pak of and points. 4.
(-W pr%rtin@atbrnaff+ Vector
dararafamto titnrntha tonn dan array wkh
Olla dimanabn.
velecfty cOrraatfon-A aorractbn appfbd 10
the aped of fight to obtain the true apead in
cxm.sidaratbn of humidii, temperature, and
altitude for use in ahoran operations.
Venlng Mdnoez forrrrulna-Formulas for
coming deflectbns d the vatt”kxd fmm gmv”~
data.
verbal acala-Sea equivalent ●cala.
verffy-1. To datarmfna @rather a
tram=r@tii of data er cxhar ~bn has been
acc4m’@shad acauratety. 2. To senfirm the
accuracy, poiirayaf, and con@atenaaa d digitaf
data with reaped to es4abliahad standarda or
qmdfkations.
vernal aqulnox-That pdnt of intamectiorr of
the adii.k and the Salaatial aquater, occupied
bythe S.naait changaa fromaeuihtonorfh
dadirmtion, on or ekouf 21 March. Also cafled
tfrat of Arfea; firer point of Arfes; March
●qulnox. Sea afae mean equinox.
vemhr cloaum-l%e dfieranoe between tha
initiil ard W vernier raadinga duting the
survey qmrafien d akaing the herizen.
vernier—A short, auxiliiry scale affuatad
abngaide the graduated asale of an instrument,
by maens of which fredonaf pmls of tha
amalleef dwision of the fxknaty acafe can be
rnarmurad aocuratefy. sea also contact
verrder; direct verrrler; folding vomlen
optical vernier; retrograde vernier.
vertex (vafilcea)-The higheat point, The
vert”ces of a great cimle are fhe points neareat