Geodesy & Positioning (geodeticenquiries@os.uk) 2025-10-09 UPDATE Princes Risborough PRIS 0 0 7.5 Centre of mount thread on plane of antenna ARP 2017-07-13 Princes Risborough Buckinghamshire 1870530 0.0 0.0 2017-07-13T12:00:00Z 1870530 0.0 0.0 2018-02-13T12:12:00Z 1870530 0.0 0.0 2021-06-14T13:33:00Z 1870530 0.0 0.0 2022-03-31T10:58:00Z 1870530 0.0 0.0 2022-07-20T20:53:00Z 1870530 0.0 0.0 2025-02-19T12:18:00Z 1870567 0.0 0.0 2025-02-20T18:10:00Z 1870567 0.0 0.0 2025-10-09T16:38:00Z 1870567 0.0 0.0 2025-10-09T16:37:00Z 20146041 0.0 0.0 0.0 0.0 2017-07-13T12:00:00Z 2012-01-10 ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier]]> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier]]>