geodetic.survey@finance-ni.gov.uk 2026-02-24 UPDATE FOYLE FOYL 0 0 13241M001 GABLE WALL OF BUILDING TOP PLATE OF MONUMENT 2006-03-24 SEDIMENTARY WEATHERED Londonderry Northern Ireland 0032552 10.0 2006-09-01T00:00:00Z 32552 5.0 2006-12-12T12:00:00Z 355837 10.0 2008-04-24T10:30:00Z 355837 5.0 2008-10-02T10:30:00Z 355837 5.0 2009-07-02T08:30:00Z 355837 5.0 2009-07-07T09:00:00Z 355837 0.0 2009-08-11T16:20:00Z 355837 0.0 2010-05-05T12:00:00Z 355837 0.0 2010-07-15T15:30:00Z 355837 0.0 2011-01-12T11:25:00Z 355837 0.0 2014-05-16T06:53:00Z 355837 0.0 2014-12-03T17:05:00Z Receiver changed 1831211 0.0 2019-03-04T15:26:00Z Firmware Update 1831211 0.0 2020-10-22T08:55:00Z 1831211 0.0 2025-11-04T07:59:00Z 6302R40031 0.0 2026-02-19T12:16:00Z 6302R40031 0.0 2026-02-24T15:08:00Z 103160 0.0 0.0 0.0 0.0 15.0 2006-09-01T12:00:00Z 200726 0.0 0.0 0.0 0.0 15.0 2008-04-24T09:30:00Z 2008-04-24 ARP: Antenna Reference Point BPA: Bottom of Pre-Amplifier L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering LEIAT504GG +-------+ <-- 0.1393 / + \ | + | +-----------------+-------------+------------------+ <-- 0.1012 TCR | | | | | | | | +-+--------------------------------------------------+-+ +-------------------+-------------+--------------------+ <-- 0.0345 BCR | | | | +------x------+ <-- 0.0 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point BPA: Bottom of Pre-Amplifier]]> ARP: Antenna Reference Point BPA: Bottom of Pre-Amplifier L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering LEIAT504GG +-------+ <-- 0.1393 / + \ | + | +-----------------+-------------+------------------+ <-- 0.1012 TCR | | | | | | | | +-+--------------------------------------------------+-+ +-------------------+-------------+--------------------+ <-- 0.0345 BCR | | | | +------x------+ <-- 0.0 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point BPA: Bottom of Pre-Amplifier]]>