Hi Everyone - just forwarding this info on the publication of NGS 92: NOAA Technical Memorandum NOS NGS 92 Classifications, Standards and Specifications for GNSS Geodetic Control Surveys using OPUS Projects by Dr. Dan Gillins PhD and Dave Zenk 2024-10-23 https://geodesy.noaa.gov/library/pdfs/NOAA_TM_NOS_NGS_0092.pdf<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgeodesy.noaa.gov%2Flibrary%2Fpdfs%2FNOAA_TM_NOS_NGS_0092.pdf&data=05%7C02%7Cgcap_members%40ENGR.ORST.EDU%7Cbae7487c8b534c9588b008dd08c9eb06%7Cce6d05e13c5e4d6287a84c4a2713c113%7C0%7C0%7C638676385493123647%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=Q7NWSuTEAzI7TxmrBEtdnR0HDxr0HmXxCzvo%2FLjkMrE%3D&reserved=0> The NGS 92 is mentioned in Section 7, and Appendix B.2.1 of ASPRS Positional Accuracy Standards for Digital Geospatial Data, Edition 2, Version 2 (2024) NGS 92 replaces earlier documents that were published to guide users in establishing high-accuracy GPS-derived heights, known as NOAA TM NOS NGS 58 and NOAA TM NOS NGS 59. NGS Webinar on the NGS 92 in April 2023. https://www.ngs.noaa.gov/web/science_edu/webinar_series/standards-specs-opus-projects.shtml<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ngs.noaa.gov%2Fweb%2Fscience_edu%2Fwebinar_series%2Fstandards-specs-opus-projects.shtml&data=05%7C02%7Cgcap_members%40ENGR.ORST.EDU%7Cbae7487c8b534c9588b008dd08c9eb06%7Cce6d05e13c5e4d6287a84c4a2713c113%7C0%7C0%7C638676385493123647%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=ybzgCUJ4%2F8UK89eUDP%2BjexSBRK%2FccWX7AQpGt98eA3k%3D&reserved=0> Dave Zolkoski subsequently wrote an article in GPS World Magazine. https://www.ngs.noaa.gov/web/science_edu/webinar_series/standards-specs-opus-projects.shtml<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ngs.noaa.gov%2Fweb%2Fscience_edu%2Fwebinar_series%2Fstandards-specs-opus-projects.shtml&data=05%7C02%7Cgcap_members%40ENGR.ORST.EDU%7Cbae7487c8b534c9588b008dd08c9eb06%7Cce6d05e13c5e4d6287a84c4a2713c113%7C0%7C0%7C638676385493123647%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=ybzgCUJ4%2F8UK89eUDP%2BjexSBRK%2FccWX7AQpGt98eA3k%3D&reserved=0>