Hello,

I would like to reduce distance observations to the national coordinate system.

Example online script:

https://www.researchgate.net/publication/304003596_Empirical_methods_of_reducing_the_observations_in_geodetic_networks

http://globalsurvey.co.nz/wp-content/uploads/2014/10/QRG-26-Projections12d-Sys1200.pdf