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Bridging PPP and a Legacy National Datum: A Velocity-Driven Transformation to HGRS1987

By Richard Thomas

The Billion-Dollar Basemap

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Hardware Ships in Days. Competence Takes Weeks.

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Topcon to Support Scientific Research and Preservation of the Basilica of Vitruvius

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GISCorps Seeks Executive Director to Build on Two Decades of Humanitarian Service

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October 2013

October 2013

  • Editor’s Desk: Why? Because It’s Our Future
  • Feature: CERN
    Surveying in support of sub-atomic research.
  • Feature: Surveying Google
    Three days submerged in the Googleplex through a surveyor’s eyes.
  • Feature: UAS & Accuracy
    Field tests of UAS photogrammetry reveal verifiably superior results over traditional survey technologies.
  • Where Theory Meets Practice: United States Standard Datum
  • Education In Surveying: The Crucial Role of SaGES
  • Conference Recap: Surveyors Take Notes at UAS
  • Technical Details: Sign (Click) Here: Using Digital Signatures on Professional Documents
  • Dual Frequency: Q&A with Lamar Evers, President, NSPS

xyHt is a monthly print magazine & an online resource for professionals in the fields of positioning & measurement.

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Bridging PPP and a Legacy National Datum: A Velocity-Driven Transformation to HGRS1987

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Hardware Ships in Days. Competence Takes Weeks.

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Bridging PPP and a Legacy National Datum: A Velocity-Driven Transformation to HGRS1987

November 6, 2026 By Richard Thomas

The Billion-Dollar Basemap

November 5, 2026 By Richard Thomas

Hardware Ships in Days. Competence Takes Weeks.

November 4, 2026 By Richard Thomas

Topcon to Support Scientific Research and Preservation of the Basilica of Vitruvius

November 3, 2026 By xyHt
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