Acronyms
N
North [position/coordinate/direction]
N, E
north, east
N.N.
Nomen Nominandum [the name is to be announced]
N/A
not available
NAL
National Aerospace Laboratory , Japan
NAOMZ
National Astronomical Observatory, Mizusawa branch
NAPEOS
NAvigation Package for Earth Orbiting Satellites
NAREF
North American Reference Frame Densification
Nat.
National, Nacional
NATML
non-tidal atmospheric pressure loading
ND
neutral density
NEH
north, east, hight
NEOS
U.S. National Earth Orientation Service
NEQ
normal equation
NERC
NERC-SGF
NERS
Network Earth Rotation Service
NetCDF
Network Common Data Form
NEU
North, East, Up [position/coordinates/directions]
NGEO
National Geophysical Observatory for Geoscience
NGL
NGSLR
[NASA's] Next Generation SLR
NH
Northern Hemisphere
NICT
National Institute of Information and Communications Technology (NICT) (formerly: CRL)
NIPR
NIR
near-infrared
NISAR
NASA-ISRO Synthetic Aperture Radar [satellite]
NIST
NLS
National Land Survey [of Finland; Maanmittauslaitos]
NMA
Norwegian Mapping Authority [Statens kartverk / Kartverket]
NMC
National Meteorological Center (replaced by NCEP)
NMCA
Norwegian Mapping and Catastre Authority [= NMA]
NMF
Niell Mapping Function
NNR
No-net-rotation, No Net Rotation
NNSS
Navy Navigation Satellite System
NNT
No-net-translation, No Net Translation
NO
Norway
No., Nos.
Number, Numbers
NoE
EU Network of Excellence
NOFS
[U.S.] Naval Observatory Flagstaff Station
NOGAPS
[U.S.] Navy Operational Global Atmospheric Prediction System
NORAD
NP
SLR normal point(s)
NPM
Lick Northern Proper Motion Program
NPS
(U.S.) Naval Postgraduate School
NRCan
Natural Resources , Canada (formerly: EMR)
nrd
nanorad[ian]
NRL
Naval Research Laboratory
NRO
Non-Rotating Origin
NRT
Nançay Radio Telescope
ns
nanosecond(s)
NSOAS
National Satellite Ocean Application Service
NT
non-tidal
NT-AL, NT-ATML
non-tidal atmospheric loading
NT-CWSL
non-tidal current water storage loading
NT-OCNL
non-tidal oceanic loading
NTL, NT-L
non-tidal loading
NTP
Network Time Protocol
NTT
Ny-Ålesund Twin [Radio] Telescope
NUVEL
Northwestern University Velocity Model
NVSS
NRAO VLA sky survey
NWIP
New Work Item Proposal
NZ
New Zealand
