Besides a traditional geodetic (horizontal and vertical control) network of passive [man made=survey_point](https://wiki.openstreetmap.org/wiki/Tag:man%20made=survey%20point?uselang=en) many nations (and even global agencies such as the [IGS](https://igs.org/network)) have active GNSS reciever/antenna's that collect satellite observations; and contribute towards the foundation of modern geodesy. These [CORS](https://en.wikipedia.org/wiki/Real-time_kinematic_positioning#CORS) are often co-incident with more traditional beacons -> [TRIGSURVEY ](https://www.openstreetmap.org/node/7204350246) How would we tag this? `gnss=yes` or would `constellation=gps;galileo;beidou`, etc. that the reciever logs be more appropriate?

Besides a traditional geodetic (horizontal and vertical control) network of passive [man made=survey_point](https://wiki.openstreetmap.org/wiki/Tag:man%20made=survey%20point?uselang=en) many nations (and even global agencies such as the [IGS](https://igs.org/network)) have active GNSS reciever/antenna's that collect satellite observations; and contribute towards the foundation of modern geodesy. These [CORS](https://en.wikipedia.org/wiki/Real-time_kinematic_positioning#CORS) are often co-incident with more traditional beacons -> [TRIGSURVEY ](https://www.openstreetmap.org/node/7204350246) How would we tag this? `gnss=yes` or would `constellation=gps;galileo;beidou`, etc. that the reciever logs be more appropriate?