USER’S GUIDE SF-2110, User Manual

Page: 81 / 95

SF-2110 User Guide – Rev. A
Glossary
.yym files see meteorological files (where yy = two
digit year data was collected).
.yyn files see navigation files (where yy = two digit
n files (where yy = two digit
orbit
corrections, and atmospheric delay
llites tracked. It is transmitted
s used by mission
tware.
de .
above the ellipsoid or geoid .
stored as height above ellipsoid in the
e displayed as height above
mean sea level
(MSL)
Antenn
antenna es is
rec T gro he APC must
be m ure to ens curate GPS
readi . T eight can b ated by
an ea ch
a mou known
and C.
APC center ase center .
GP ode of
PS recei putes position
time from satellite data a one, without
year data was collected).
.yyo files see observatio
year data was collected).
almanac files an almanac file contains
information, clock
parameters for all sate
to a receiver from a satellite and i
planning sof
alt see altitu
altitude vertical distance
It is always
GPS receiver but can b
ellipsoid (HAE) or height above
.
a Phase Center (APC) The point in an
where the GPS signal from the satellit
eived. he height above und of t
eas d accurately ure ac
ngs he APC h e calcul
adding the height to sily measured point, su
as the base of the antenn nt, to the
distance between this point the AP
see antenna phase or ph
Autonomous positioning (
a G
S) a m
m operation in
fixes in real which ver co
l
reference to data supplied by a reference station or
orbital clock corrections. Autonomous positioning is
typically the least precise positioning procedure a
Glossary-79