Esper, J.Long, J. L.Lemoine, F. G.McCormick, D. R.Merkowitz, S. M.Ma, C.McGarry, J. F.Hilliard, L.Pavlis, Erricos C.Pearlman, M. R.Stowers, D. A.Wetzel, S. L.2020-10-092020-10-092014-10-14J. Esper et al., NASA’s Next Generation Space Geodesy Network Typical Core Site Requirements and Layout, https://cddis.nasa.gov/lw19/docs/2014/Papers/3151_Esper_paper.pdfhttp://hdl.handle.net/11603/1979819th International Workshop on Laser Ranging, Annapolis, MD October 27-31, 2014NASA’s renewed commitment to the deployment of a new network of “core” space geodetic sites requires careful planning and consideration for location selection, instrument and facility layout, and required infrastructure. Following on National Research Council (NRC) recommendations [1] to upgrade U.S. stations with modern SLR, VLBI, and GNSS systems, and make a long-term commitment to maintaining the ITRF (among others), the Space Geodesy Project (SGP) at NASA Goddard has been defining the exact requirements and layout for a “typical” geodetic site, which includes Satellite Laser Ranging--SLR, Very Long Baseline Interferometry--VLBI, Global Navigation Satellite System--GNSS, and Doppler Orbitography and Radiopositioning Integrated by Satellite--DORIS stations (French system provided by CNES, France) tied together with a Vector Tie System (VTS), utilizing a Robotic Total Station (RTS). Within programmatic constraints, Core Site (CS) identification follows a systems engineering process where site characteristics are evaluated against identified requirements. Taking into consideration site stability, radiofrequency interference, infrastructure, and a host of other requirements this paper describes the process leading to identification, and it will illustrate the generic layout of an idealized CS with unencumbered terrain.13 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Public Domain Mark 1.0This is a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Text