Real Time Network RTN Operations Users and Operators

Real Time Network (RTN) Operations Users and Operators Perspective

RTN Administration o Efficiently operates the various components of the network n Receivers/antennas n Servers n Communication networks o Provides users with the information needed to utilize the network

RTN Administration o Resources n Hardware infrastructure n Communication networks n CORS o People n Users n Administration staff to provide o Helpful support to users o Partnership with IT professionals

RTN Administration o Key component of administration staff is the system administrator n Operates and maintains the RTN computer network n Distributes the GNSS information to the network’s users in an efficient manner

RTN Administration o Administrator abilities n Support and maintain computer servers and communication links n Ability to respond to service outages o User reported problems o Network problems n Helpful to have a background in geodesy and satellite positioning

RTN Administration n IT Partners o IT security o Firewall issues o Lightning protection o Power system backup

RTN Operations o Reference Station Datum n Benefits of using a reference datum that is consistent with the datum used by NGS: o Easy to verify o Consistent with National CORS o Can use OPUS to position RTN CORS

RTN Operations o Reference Station Datum n Ramifications of using a datum that differs from the datum utilized by NGS o OPUS and RTN solutions would be based on different reference datums: n OPUS could not be used to check RTN solutions n RTN could not be used to check OPUS solutions o Could create confusion with users

RTN Operations o Connection to NSRS n The minimum number of National CORS sites in the RTN should be the larger of the following two figures: 3 sites or 10% of the sites n Recommend local static surveys be performed to connect RTN CORS with local NSRS passive stations

RTN Operations o Connection to NAVD 88 o Should be completed before the CORS antenna is installed o May be completed afterwards if an offset leveling plate had been installed immediately below the antenna n Field techniques o Geodetic leveling o Trigonometric leveling o NGS -58 survey

Questions? Gary W. Thompson, PLS Office: 919 -733 -3836 Direct: 919 -948 -7844 Email: gary. thompson@ncdps. gov Mailing address: Gary W. Thompson, PLS NC Geodetic Survey 4298 Mail Service Center Raleigh, NC 27699 -4298 Building (shipping) address: Gary W. Thompson, PLS NC Geodetic Survey Bowers Building NC National Guard complex 4105 Reedy Creek Rd Raleigh, NC 27607