anchor.diff:  SUTT,CG,no,Sutton,-45.63416,170.13928,411,WGS84,2016-05-26T00:00:00Z,9999-01-01T00:00:00Z
   TAKL,GN,no,Auckland Tide Gauge,-36.8436,174.7699,50,NZGD2000,2001-07-11T00:00:00Z,2007-07-05T00:00:00Z
   TAKP,CG,no,Takapari Road,-40.061564113,175.962920076,698.854,NZGD2000,2004-01-14T00:00:00Z,9999-01-01T00:00:00Z
  -TAUP,LI,no,Taupo Airport,-38.74271665,176.0809947,427.0279,NZGD2000,2002-03-22T00:00:00Z,9999-01-01T00:00:00Z
  +TAUP,LI,no,Taupo Airport,-38.742716717,176.080994664,427.0231,NZGD2000,2002-03-22T00:00:00Z,9999-01-01T00:00:00Z
   TAUW,CG,no,Tauwhareparae,-38.162424733,178.005876841,713.456,NZGD2000,2009-01-01T00:00:00Z,9999-01-01T00:00:00Z
   TEMA,CG,no,Te Maipa,-41.106566527,175.890463218,515.1993,NZGD2000,2007-02-12T00:00:00Z,9999-01-01T00:00:00Z
   TEN2,XX,no,Lake Tennyson Temporary,-42.215018,172.790212,1833.1,WGS84,2016-11-16T00:00:00Z,9999-01-01T00:00:00Z
  
positive.code: OPTK,CG,no,Opotiki,-38.046521999,177.307578963,127.477,NZGD2000,2009-08-20T00:00:00Z,9999-01-01T00:00:00Z
  OROA,CG,no,Oueroa,-40.10435506,176.68067166,279,WGS84,2010-11-08T00:00:00Z,9999-01-01T00:00:00Z
  OTAK,CG,no,Tuapaka Z,-40.816546002,175.170413249,245.0853,NZGD2000,2007-03-07T00:00:00Z,9999-01-01T00:00:00Z
  OUSD,GN,no,Otago University Survey Department,-45.86950159,170.5109203,26.16,NZGD2000,1995-01-16T00:00:00Z,9999-01-01T00:00:00Z
  PAEK,CG,no,Paekakariki Hill,-41.02176626,174.95208121,443.238,NZGD2000,2003-03-22T00:00:00Z,9999-01-01T00:00:00Z
  PAKI,CG,no,Pakihiroa,-37.89398,178.0826,828,WGS84,2010-06-22T00:00:00Z,9999-01-01T00:00:00Z
  PALI,CG,no,Cape Palliser,-41.569229573,175.25478278,624.147,NZGD2000,2007-02-12T00:00:00Z,9999-01-01T00:00:00Z
  
negative.code: CMBL,CG,no,Cape Campbell No. 2,-41.74901944,174.213817058,257.0051,NZGD2000,2003-12-03T00:00:00Z,9999-01-01T00:00:00Z
  CNCL,SA,no,Conical Hill,-43.6662293,169.8558523,1222.3078,WGS84,2000-02-05T00:00:00Z,9999-01-01T00:00:00Z
  CNST,CG,no,Carnagh Station,-38.48796629,178.211143529,242.6788,NZGD2000,2007-02-22T00:00:00Z,9999-01-01T00:00:00Z
  CORM,LI,no,Coromandel,-36.865433301,175.74955732,170.2423,NZGD2000,2003-05-09T00:00:00Z,9999-01-01T00:00:00Z
  DNVK,LI,no,Dannevirke,-40.298857681,176.166658303,457.6206,NZGD2000,2002-06-05T00:00:00Z,9999-01-01T00:00:00Z
  DUND,LI,yes,Dunedin,-45.883666031,170.597170119,386.9165,NZGD2000,2005-08-10T00:00:00Z,9999-01-01T00:00:00Z
  DUNT,GN,no,Dunedin Tide Gauge,-45.81432,170.62941,13.5,NZGD2000,1999-09-23T00:00:00Z,9999-01-01T00:00:00Z
  DURV,CG,no,D'Urville,-40.80176403,173.92159255,468.459,NZGD2000,2005-03-09T00:00:00Z,9999-01-01T00:00:00Z
  FALE,GN,yes,Faleolo,-13.83221526,-171.999524003,47.6006,NZGD2000,1999-01-01T00:00:00Z,9999-01-01T00:00:00Z
  FRTN,CG,no,Frasertown,-38.939296943,177.409873784,169.463,NZGD2000,2011-01-18T00:00:00Z,9999-01-01T00:00:00Z
  GDS1,XX,no,Gladstone Station Temporary,-41.93229563,173.610785416,930.8583,WGS84,2016-11-16T00:00:00Z,2018-01-16T00:00:00Z
  GISB,LI,no,Gisborne,-38.635336932,177.886034958,87.1772,NZGD2000,2002-05-14T00:00:00Z,9999-01-01T00:00:00Z
  GLDB,LI,no,Golden Bay,-40.826596737,172.529562694,302.6043,NZGD2000,2004-01-14T00:00:00Z,9999-01-01T00:00:00Z
  GLOK,CG,no,Glen Orkney Station,-41.857233093,173.821857511,751.6266,WGS84,2017-03-28T00:00:00Z,9999-01-01T00:00:00Z
  GNBK,CG,no,Greenbank,-40.080340364,175.238130872,90.307,NZGD2000,2008-03-27T00:00:00Z,9999-01-01T00:00:00Z
  GRAC,GN,no,Gracefield,-41.235120775,174.917042786,26.2406,NZGD2000,2002-03-22T00:00:00Z,2006-08-28T00:00:00Z
  GRNG,CG,no,Grange Hill,-39.976254724,175.459264187,365.8342,NZGD2000,2007-06-14T00:00:00Z,9999-01-01T00:00:00Z
  GUNR,CG,no,Gunn Ridge,-43.39208023,170.389254483,1563.535,WGS84,2010-01-27T00:00:00Z,9999-01-01T00:00:00Z
  HAAS,LI,no,Haast,-44.07320551,168.785552655,1053.5484,NZGD2000,2004-06-22T00:00:00Z,9999-01-01T00:00:00Z
  HAMT,LI,no,Hamilton,-37.806755415,175.109198255,69.4015,NZGD2000,2003-05-13T00:00:00Z,9999-01-01T00:00:00Z
  HANA,CG,no,Hangaroa,-38.686822718,177.569366285,574.0468,NZGD2000,2007-02-26T00:00:00Z,9999-01-01T00:00:00Z
  HANM,CG,no,Hanmer Basin,-42.552839216,172.792787824,321.718,NZGD2000,2014-05-07T00:00:00Z,9999-01-01T00:00:00Z
  HAST,LI,no,Hastings,-39.617032937,176.726563989,152.338,NZGD2000,2002-09-19T00:00:00Z,9999-01-01T00:00:00Z
  HIKB,LI,no,Hicks Bay,-37.561041369,178.303352509,107.2883,NZGD2000,2003-05-01T00:00:00Z,9999-01-01T00:00:00Z
  HOKI,LI,no,Hokitika,-42.712907547,170.98431526,53.6666,NZGD2000,1998-06-01T00:00:00Z,9999-01-01T00:00:00Z
  HOLD,CG,no,Holdsworth Station,-40.897248036,175.515190045,469.6892,NZGD2000,2007-02-12T00:00:00Z,9999-01-01T00:00:00Z
  HORN,SA,no,Hoophorn Spur,-43.777329049,170.105510772,960.366,NZGD2000,2002-11-01T00:00:00Z,9999-01-01T00:00:00Z
  KAHU,CG,no,Kahuranaki,-39.79375204,176.87627798,654.309,NZGD2000,2006-04-19T00:00:00Z,9999-01-01T00:00:00Z
  KAIK,LI,no,Kaikoura,-42.425464202,173.53367198,315.4956,NZGD2000,2004-01-30T00:00:00Z,9999-01-01T00:00:00Z
  KAPT,CG,no,Kapiti,-40.86090134,174.90976461,367.612,NZGD2000,2004-06-10T00:00:00Z,9999-01-01T00:00:00Z
  KARA,SA,no,Karangarua,-43.6083749,169.7751584,1403.2832,WGS84,2000-02-04T00:00:00Z,9999-01-01T00:00:00Z
  KAWK,CG,no,Kaweka Forest,-39.42404,176.42277,831,WGS84,2010-06-02T00:00:00Z,9999-01-01T00:00:00Z
  KERE,CG,no,Kereru,-39.64315592,176.37013505,520.891,NZGD2000,2006-05-17T00:00:00Z,9999-01-01T00:00:00Z
  KOKO,CG,no,Kokohu,-39.01610531,177.667786,301.825,NZGD2000,2004-11-03T00:00:00Z,9999-01-01T00:00:00Z
  KORO,CG,no,Kooro,-40.409333842,175.424056482,51.554,NZGD2000,2007-06-14T00:00:00Z,9999-01-01T00:00:00Z
  KTIA,LI,no,Kaitaia,-35.068932976,173.273109785,127.4344,NZGD2000,2007-10-24T00:00:00Z,9999-01-01T00:00:00Z
  KUTA,CG,no,Te Kuta,-39.17226,177.06976,181,WGS84,2010-04-07T00:00:00Z,9999-01-01T00:00:00Z
  LDRZ,GN,no,Lauder NIWA Station,-45.038339955,169.684113905,379.329,WGS84,2012-04-28T00:00:00Z,9999-01-01T00:00:00Z
  LEVN,CG,no,Moutere No.3,-40.58877883,175.240636358,96.127,NZGD2000,2008-06-30T00:00:00Z,9999-01-01T00:00:00Z
  LEXA,LI,no,Alexandra,-45.231017338,169.308249353,331.8529,NZGD2000,2004-03-18T00:00:00Z,9999-01-01T00:00:00Z
  LEYL,CG,no,Tangoio No 2,-39.332320765,176.93673005,114.0888,NZGD2000,2007-02-19T00:00:00Z,9999-01-01T00:00:00Z
  LKTA,LI,no,Lake Taylor,-42.783371211,172.266333714,712.9685,NZGD2000,2004-02-01T00:00:00Z,9999-01-01T00:00:00Z
  LOK1,XX,no,Glen Orkney Station Temporary,-41.859531782,173.818372429,678.4554,WGS84,2016-11-15T00:00:00Z,2017-11-02T00:00:00Z
  LOOK,CG,no,Mount Lookout,-42.01157,173.48244,1609,WGS84,2017-03-28T00:00:00Z,9999-01-01T00:00:00Z
  LRR1,XX,no,Clarence River Temporary,-42.144411066,173.815293346,921.9091,WGS84,2016-11-15T00:00:00Z,2017-05-22T00:00:00Z
  LYTT,GN,no,Lyttelton Tide Gauge,-43.60584,172.72222,18.5,NZGD2000,1999-11-15T00:00:00Z,9999-01-01T00:00:00Z
  MAHA,CG,no,Mahakipawa Hill,-41.291387,173.793817,442,NZGD2000,2009-11-16T00:00:00Z,9999-01-01T00:00:00Z
  MAHI,CG,no,Mahia Peninsula,-39.152563727,177.90700192,322.4398,NZGD2000,2007-02-20T00:00:00Z,9999-01-01T00:00:00Z
  MAHO,LI,no,Mahoenui,-38.5130092,174.854087477,302.4843,NZGD2000,2004-02-29T00:00:00Z,9999-01-01T00:00:00Z
  MAKO,CG,no,Makorori,-38.6437598,178.1291161,231,NZGD2000,2010-11-09T00:00:00Z,9999-01-01T00:00:00Z
  MANG,CG,no,Mangatainoka River,-40.66869722,175.57486925,418.01,NZGD2000,2005-02-03T00:00:00Z,9999-01-01T00:00:00Z
  MAST,LI,no,Masterton,-41.061990608,175.584577854,207.1972,NZGD2000,2002-12-19T00:00:00Z,2016-04-07T00:00:00Z
  MATW,CG,no,Matawai,-38.33384691,177.5262032,646.269,NZGD2000,2004-04-09T00:00:00Z,9999-01-01T00:00:00Z
  MAVL,LI,no,Mavora Lakes,-45.366518455,168.118214379,592.4607,NZGD2000,2004-05-17T00:00:00Z,9999-01-01T00:00:00Z
  MCNL,CG,no,McNeill Hill,-39.444191609,176.696548844,366.277,NZGD2000,2008-05-27T00:00:00Z,9999-01-01T00:00:00Z
  METH,LI,no,Methven,-43.59135475,171.575302903,452.6503,NZGD2000,2010-09-10T00:00:00Z,9999-01-01T00:00:00Z
  MING,CG,no,Minginui,-38.61686,176.74973,458,WGS84,2010-04-28T00:00:00Z,9999-01-01T00:00:00Z
  MKNO,CG,no,Makino Road,-39.703375975,176.028832116,832.205,NZGD2000,2011-05-11T00:00:00Z,9999-01-01T00:00:00Z
  MNHR,CG,no,Manuhara Road,-40.468646217,176.223377237,295.633,WGS84,2011-02-16T00:00:00Z,9999-01-01T00:00:00Z
  MQZG,LI,yes,McQueens Valley,-43.702735976,172.654703048,154.6397,NZGD2000,1999-09-27T00:00:00Z,9999-01-01T00:00:00Z
  MRBL,CG,no,Marble Point,-42.661761766,172.775203647,563.863,NZGD2000,2014-06-01T00:00:00Z,9999-01-01T00:00:00Z
  MTBL,CG,no,Mount Blewitt No. 2,-40.181361325,175.53615217,156.761,NZGD2000,2008-03-27T00:00:00Z,9999-01-01T00:00:00Z
  MTJO,LI,no,Mt John Observatory,-43.985705995,170.464942927,1043.6599,NZGD2000,2000-07-31T00:00:00Z,9999-01-01T00:00:00Z
  MTPR,CG,no,Mt Price,-43.336407925,170.350531621,1548.855,WGS84,2010-01-27T00:00:00Z,9999-01-01T00:00:00Z
  MTQN,CG,no,Mt. Quoin,-41.00157941,175.241362741,1207.295,NZGD2000,2010-02-09T00:00:00Z,9999-01-01T00:00:00Z
  MUL1,XX,no,Muller Station Temporary,-42.06045988,173.414241312,1076.7841,WGS84,2016-11-16T00:00:00Z,2018-01-15T00:00:00Z
  