Thembisa: coordinates, UTM zone and magnetic declination
Survey data sheet for Thembisa (South Africa) 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 Thembisa in?
Thembisa is in UTM zone 35S, with central meridian 27° E. In WGS 84, the city center is at E 622,785 m and N 7,124,143 m.
What is the magnetic declination in Thembisa?
Today the magnetic declination in Thembisa is 20.58° W, changing by −15.8′ 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 Thembisa?
The geoid undulation (EGM2008) in Thembisa is N = 25.60 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Thembisa
- Diepsloot 23 km
- Benoni 23 km
- Boksburg 24 km
- Randburg 25 km
- Pretoria 28 km
- Johannesburg 29 km
- Brakpan 30 km
- Roodepoort 40 km
- All cities in South Africa
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS