1 - NGA

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1
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sprlng~ lunar day; lunar tldo: Iunltldftl
Interval: mean dhmral hlsh water
Inoquallty; mean diurnal low wwtor
inequality; mean high water; mean high
water springs; moan hlghor high watw
mean higher high water ●prlngw mean
low wstar; msan low watar sprlnga;
M.=n Iowar low water; mean lower low
wstor 8prings; memr range; mean rivar
level; mean awn Iovel; maan tlda Iavel;
nodal Ilns; parallax Inequality; phase
Inequality; sot; somldiurtral constituent;
tidal correction; tidal cutrsnt; tldwnark.
tlo flight-see control ●trfp.
tls point-l. Image points ktentiied on
oblique photographs in the overfep area
batwaen two or more c+csrd drips at
photegrephy. They serve 10 tie the indwiduel
sets of photographs into e single flight uni and
10 tie edjscenl ffiihts into a common network.
2. Paint of cbsure of a survey either on ifseff or
on another sunfey.
tie stripl. (cerfography) An overlay
mnlaining all pfsnimefric and relief festures in
he .srae akmg the edge of a msp or chsrt. It is
used to insure the matching of these feetures
on adjoining sheets. AIs cded metch strip. 2.
(aerisl photography) See control strip.
tlc-in—See tla.
thrr-Any seriss of oontigmus townshps
S.huatSd frS6f and west of each otha~ also
sacfians simifarfy situated wiihm a township.
tie-A survey connection from a paint of known
psifion to a paint whose postion is desired. A
lie is made to determine the positbn of a
aucmlernsntsw ooint wheae Posilion is desird
fo; tipping 6r iefarance puI@ss, or to cbee a
survey on a pmviousfy detarmirred point. To TISin’
is to rmske awh a wnnection. Sea afso tla
point, definition 2.
tiled covaragstA coveraga that hss baen
physimdfy patffioned into smsller covereges.
One or rrwre of these smelfer mveragee, where
all shsre the asme eat of festure cfasses with
the same daffnifbns. Each tile definm an
independent topology.
tlllng echame-The scheme used to define
tile ahapa and size, and unkfua tifa identifibetbn
number.
MIL-HDBK-850
259
ttlt ●@-@CS) The rmgla between the
qticaf asis of an air ssmwa and the vwtical @
the tti of aaposure. Sea also ●ngle of
dopreaalon; tilt.
tltt drcf.-fn a tilted aerial photograph, a arcfe
pesing through the kcrcsnter and having a
diamefar Iyhtg efong the @nc@l fine. WsarI thffi
dantater is drawn to a convenient fiir scale,
then any chord through the lsooarrfer given the
componanf of tiff for that particular direction,
tiftdlapfacement-Oiicernartt rwdml from
the iaocertter of the photograph caused @ the
tilt 04 Ihe photograph.
tiff sfide ryfe-A device wiriih facififates the
determmaMert for aetfings on a frned-bns reclfier
tian carfain tiff factors of an aerial photograph
are known.
tlltlrrg levef-A Ievefing instrument in whbh
Ihe talsscope with its attached bubble !ube can
be Ievefed by e fine screw a! ha eyepiece snd
of the lelesmps indapendanlfy of the verticel
e.sis, lhus avoiding the need for cerefuf Ievahg
of the ir@rument as e whole. Tnis type d Ienrel
was first dasi~ed for precise work, bul the
principle has mms inlo pafrular use for ordinsry
ievels.
Nltlng-lone rectlfler-A CISSS of reclifiem in
which the principsl paint is fried on its esie of
swing, and cennet be diepJsced.
tlft—(JCS) See roll. Also celled ●ngle of tlk.
See also cross tilt; direction of til~ pffch;
relative tilt; x-tilt.
time rfiegram+A diagram in wheh the
cefmfial equstof sppeers as e circle, and
cefeslial meridians end hour aides as rediil
lines; used 10 facifiiele sofutbn of time problems
and others invohfhg ercs of the arfesfiel aqusbr
or angfes at Ihe pots, by indiiing refelians
b@ween varbus quenfities invofved.
Conventiarraffy, the relationships are gfven as
viewed frern a point over the south Pole.
wasfwsrd direction being oourrterobofrwise. Afeo
called diagram on the pfane of the
●quinoctlai. See also diagram on tfra
plana of tha cafastlal meridian.
time dlatsnce-Time required for any object
to h-evef betwaen two given paints 61 a given
rate of speed.