Geodesy & Positioning (geodeticenquiries@os.uk) 2026-01-09 UPDATE Loftus LOFT 0 0 19116M001 0.8 Single storey composite building Intersection of top of antenna mounting plate and forced centring device 2005-09-29 Loftus REDCAR AND CLEVELAND 10010503 5.0 0.0 2005-09-29T00:00:00Z 356209 5.0 0.0 2009-01-14T12:35:00Z 356451 5.0 0.0 2009-09-09T12:55:00Z 356451 5.0 0.0 2010-05-16T22:40:00Z ME FW v4.007 356451 0.0 0.0 2011-08-08T21:56:00Z ME FW v4.007 356579 0.0 0.0 2011-10-25T11:04:00Z ME FW v6.112 356579 0.0 0.0 2015-06-04T10:48:00Z 5804R40043 0.0 0.0 2018-09-05T12:30:00Z 5804R40043 0.0 0.0 2018-10-23T10:35:00Z 5804R40043 0.0 0.0 2019-10-01T10:15:00Z 5804R40043 0.0 0.0 2020-02-26T08:40:00Z 5804R40043 0.0 0.0 2020-09-30T11:36:00Z 5804R40043 0.0 0.0 2021-11-08T15:05:00Z 5804R40043 0.0 0.0 2022-06-16T14:30:00Z 5804R40043 0.0 0.0 2023-04-14T14:55:00Z 5804R40043 0.0 0.0 2023-09-01T15:39:00Z 5804R40043 0.0 0.0 2024-02-16T15:38:00Z 5804R40043 0.0 0.0 2025-05-09T15:30:00Z 5804R40043 0.0 0.0 2026-01-09T15:54:00Z 5804R40043 0.0 0.0 2026-01-09T15:54:00Z unknown 0.0 0.0 0.0 2005-09-29T00:00:00Z 08470028 0.0 0.0 0.0 6.5 2022-05-18T08:03:00Z 21204035 0.05 0.0 0.0 0.0 6.5 2022-05-18T08:03:00Z 2005-09-29 ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier ------------------------------------------------------------------------------ LEIAT504 L1/L2 Dorne Margolin antenna with chokerings (designed after DORNE MARGOLIN T) +-------+ <-- 0.1393 / + \ <-- 0.1282 L2 | + | <-- 0.1093 L1 +-----------------+-------------+------------------+ <-- 0.1020 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0380 +-------------------+-------------+--------------------+ <-- 0.1020 BCR | | | | +------x------+ <-- 0.000 BPA=ARP <-- 0.3794 --> 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 ------------------------------------------------------------------------------ LEIAT504 L1/L2 Dorne Margolin antenna with chokerings (designed after DORNE MARGOLIN T) +-------+ <-- 0.1393 / + \ <-- 0.1282 L2 | + | <-- 0.1093 L1 +-----------------+-------------+------------------+ <-- 0.1020 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0380 +-------------------+-------------+--------------------+ <-- 0.1020 BCR | | | | +------x------+ <-- 0.000 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier]]>