anchor.diff:  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,-45.86950159423,170.51092025742,26.1568,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
  +PAEK,CG,no,Paekakariki Hill,-41.021766288,174.95208129,443.244,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
   PARI,CG,no,Paritu Road,-38.92257263,177.883276367,507.4359,NZGD2000,2007-02-24T00:00:00Z,9999-01-01T00:00:00Z
  
positive.code: RAWI,CG,no,Rawiri,-38.495555956,177.415398552,932,NZGD2000,2009-01-01T00:00:00Z,9999-01-01T00:00:00Z
  RCHD,CG,no,Richmond Range,-41.479509389,173.311101389,1497,WGS84,2019-08-27T00:00:00Z,9999-01-01T00:00:00Z
  RDLV,CG,no,Ardelve,-41.186919382,175.404348702,110.6,NZGD2000,2009-01-13T00:00:00Z,9999-01-01T00:00:00Z
  RGAR,CG,no,Allen Road,-38.562045591,176.343032991,410.2951,NZGD2000,2007-11-07T00:00:00Z,9999-01-01T00:00:00Z
  RGAW,CG,no,Awakeri,-38.003197011,176.896164405,104.798,WGS84,2009-03-24T00:00:00Z,9999-01-01T00:00:00Z
  RGCR,CG,no,Cookson Road,-38.10469303,176.3779633,701.092,NZGD2000,2007-02-12T00:00:00Z,2011-08-30T00:00:00Z
  RGHD,CG,no,Hawthornden Drive,-38.093658784,176.365924493,515.484,WGS84,2012-02-01T00:00:00Z,9999-01-01T00:00:00Z
  
negative.code: WPAW,CG,no,Waipawa,-39.89587961,176.54300597,293.452,NZGD2000,2006-04-20T00:00:00Z,9999-01-01T00:00:00Z
  WPUK,CG,no,Waipukurau,-40.06420523,176.44059928,344.435,NZGD2000,2006-04-19T00:00:00Z,9999-01-01T00:00:00Z
  WRA1,XX,no,Wairau Valley temporary,-41.595477374,173.586375972,529.5565,WGS84,2016-11-15T00:00:00Z,2017-05-28T00:00:00Z
  WRAU,CG,no,Wairau Valley,-41.595012369,173.586158958,536.385,NZGD2000,2017-02-12T00:00:00Z,9999-01-01T00:00:00Z
  WRPA,LI,no,Wairarapa,-41.06256872492,175.58323329397,204.8078,NZGD2000,2016-01-06T00:00:00Z,9999-01-01T00:00:00Z
  YALD,CG,no,Yaldhurst,-43.490770899,172.481135725,64.624,NZGD2000,2014-09-16T00:00:00Z,9999-01-01T00:00:00Z
  