Tirunelveli: coordinates, UTM zone and magnetic declination
Survey data sheet for Tirunelveli (India) for field work: coordinates, UTM zone, scale factor, grid convergence, today's magnetic declination and geoid undulation, computed for the city center.
Values for the city center (GeoNames coordinate). Declination from the World Magnetic Model 2025 for today's date; geoid from EGM2008. For an exact point, use the tools below.
Nearest GNSS reference stations (IGS)
Tools to use here
FAQ
What UTM zone is Tirunelveli in?
Tirunelveli is in UTM zone 43N, with central meridian 75° E. In WGS 84, the city center is at E 795,308 m and N 965,767 m.
What is the magnetic declination in Tirunelveli?
Today the magnetic declination in Tirunelveli is 1.69° W, changing by +2.0′ per year (WMM2025 model). To get the true azimuth, add the declination to the magnetic azimuth (East positive, West negative).
What is the geoid undulation in Tirunelveli?
The geoid undulation (EGM2008) in Tirunelveli is N = −97.68 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Tirunelveli
- Thoothukudi 50 km
- Thiruvananthapuram 85 km
- Kollam 122 km
- Madurai 141 km
- Theni 145 km
- Dindigul 185 km
- Kochi 206 km
- Kanayannur 208 km
- All cities in India
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS