Lat Lon conversion problem

I have converted station locations decimal degree to UTM (using deg2utm). Station locations are in Mongolia around at lat=47.0000N lon=102.5000E in degrees. it is x= 271930 y=5209533 in UTM.

But we have other stations at lat=47.0000 and lon=97.0000. Its converted value was x=347951 and y=5207105 in utm.

These are looks in almost same location. Could you please tell me what is wrong here? it must be around something like x=700000 y=5300000 in utm. Please help me to solve this problem at lat=47.0000 and lon=102.5000?

[Walter Roberson]

https://www.mathworks.com/matlabcentral/fileexchange/10915-deg2utm ? The vectorized version at https://www.mathworks.com/matlabcentral/fileexchange/44242-utm2lonlat ?

https://www.mathworks.com/matlabcentral/fileexchange/45699-ll2utm-and-utm2ll ?

[Walter Roberson]

http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags