anchor.diff:  CACS,SM,Christchurch Canterbury Aero Club,-43.483175585,172.530015293,42,WGS84,1999-09-17T00:00:00Z,9999-01-01T00:00:00Z
   CAMEL,XX,Camelback,-42.87419,170.96216,60,WGS84,2008-10-29T00:00:00Z,2009-10-21T00:00:00Z
   CAN,OE,Canberra,-35.3208,148.9987,700,NZGD49,1958-01-01T00:00:00Z,9999-01-01T00:00:00Z
  -CAPE,XX,East Cape,-37.689921319,178.546423758,40,WGS84,1994-08-05T00:41:00Z,1994-08-25T11:37:00Z
  -CARD,XX,Cairn Hill,-43.42511,171.94367,392,WGS84,2010-09-04T00:00:00Z,2010-09-29T00:00:00Z
  -CASA,XX,Castle Hill,-43.172124675,171.423912506,9999,WGS84,1994-06-19T20:22:00Z,1994-08-06T11:13:00Z
  +CAPE,XX,East Cape,-37.689921319,178.546423758,40,WGS84,1994-08-05T00:41:00Z,1994-08-25T11:41:00Z
  +CARD,XX,Cairn Hill,-43.42511,171.94367,392,WGS84,2010-09-04T00:00:00Z,2010-09-29T23:59:00Z
  +CASA,XX,Castle Hill,-43.172124675,171.423912506,9999,WGS84,1994-06-19T20:22:00Z,1994-08-06T11:15:00Z
   CASH,XX,Castle Hill,-43.184271,171.437733,660,WGS84,2008-11-03T00:00:00Z,2009-10-24T00:00:00Z
  -CASM,XX,Castle River,-41.978600612,173.440644136,670,WGS84,1993-10-18T05:51:00Z,1994-03-11T20:37:00Z
  +CASM,XX,Castle River,-41.978600612,173.440644136,670,WGS84,1993-10-18T05:51:00Z,1994-03-11T20:39:00Z
   CAVA,XX,Cave Stream,-43.154125019,171.717116386,9999,WGS84,1994-06-20T00:00:00Z,1994-06-22T00:00:00Z
   CAW,WL,Cannon Point,-41.107194232,175.066438523,283,WGS84,1976-05-11T00:00:00Z,9999-01-01T00:00:00Z
   CAZ,NZ,Castlepoint,-40.90248222,176.226384001,6,WGS84,1968-02-20T00:00:00Z,1988-11-23T00:00:00Z
  
positive.code: LHR,XX,Lake Hauroko RATS,-45.994689059,167.392043107,150,WGS84,1989-06-07T00:50:00Z,1989-06-10T11:57:00Z
  LHRS,SM,Lower Hutt Normandale Rock Site,-41.204736054,174.893185932,125,WGS84,2001-11-08T00:00:00Z,9999-01-01T00:00:00Z
  LHUS,SM,Lower Hutt Unilever,-41.230846652,174.89363583,8,WGS84,2001-10-25T00:00:00Z,9999-01-01T00:00:00Z
  LICJ,XX,Lichen Creek,-44.163542726,168.776372775,103,WGS84,2001-12-11T08:10:00Z,2001-12-26T15:46:00Z
  LINC,SC,Lincoln Crop and Food Research,-43.623179038,172.46800379,16,WGS84,2004-12-02T00:00:00Z,9999-01-01T00:00:00Z
  LINM,XX,Linkwater,-41.267084997,173.858152577,40,WGS84,1994-03-04T04:43:00Z,1994-03-13T19:03:00Z
  LIRS,SM,Lower Hutt IRL,-41.23231,174.91929,-1,WGS84,2011-05-31T00:00:00Z,9999-01-01T00:00:00Z
  LIRZ,RT,Lichenstein Road,-38.00357,176.38523,340,WGS84,1992-06-16T00:00:00Z,9999-01-01T00:00:00Z
  LJAI,XX,Jailhouse,-38.604435021,176.755198943,381,WGS84,2001-01-20T00:00:00Z,2001-06-28T00:00:00Z
  LKMJ,XX,Lake Mary,-44.040339282,168.71687273,50,WGS84,2001-12-09T07:51:00Z,2001-12-27T02:45:00Z
  LKOW,XX,Te Kowhai,-39.339549206,176.499693201,431,WGS84,2001-01-18T00:00:00Z,2001-06-28T00:00:00Z
  LLRC,XX,Leslie Road,-38.03602213,175.858490034,160,WGS84,2001-01-17T05:02:00Z,2001-07-04T07:06:00Z
  LMAN,XX,Mangaohane,-39.559452832,176.081387223,707,WGS84,2001-01-24T07:03:00Z,2001-06-12T21:34:00Z
  LMAT,XX,Matapuna,-39.679055781,176.287189336,524,WGS84,2001-01-17T00:00:00Z,2001-06-28T00:00:00Z
  LMAU,XX,Maungataniwha,-38.912741504,176.936500094,209,WGS84,2001-03-23T03:22:00Z,2001-06-15T16:55:00Z
  LMOT,XX,Motokawa,-39.585252852,175.848984249,491,WGS84,2001-01-25T03:16:00Z,2001-06-24T00:07:00Z
  LMOW,XX,Moawhango Dam,-39.406948944,175.753483734,880,WGS84,2001-01-23T00:00:00Z,2001-06-20T00:00:00Z
  LMZ,NZ,Lake Moeraki,-43.715032432,169.269581756,10,WGS84,1990-11-08T00:00:00Z,2004-07-31T00:00:00Z
  LNBS,SM,Naenae Bowling Club,-41.20498,174.9266,7,WGS84,2011-12-08T00:00:00Z,9999-01-01T00:00:00Z
  LNSD,XX,Loch Ness,-43.66183,172.48698,14,WGS84,2010-09-04T00:00:00Z,2010-09-28T00:00:00Z
  LOCC,XX,Lochinver,-38.868239406,176.373993342,724,WGS84,2001-01-11T20:41:00Z,2001-06-25T21:06:00Z
  LOGO,XX,Logan Burn,-45.50582,169.80753,583,WGS84,2014-03-12T00:00:00Z,2014-10-10T00:00:00Z
  LOKS,SM,Mount Lookout,-42.01157,173.48244,1609,WGS84,2017-06-15T00:00:00Z,9999-01-01T00:00:00Z
  LOPO,XX,Opouahi Station,-39.142945846,176.800697617,526,WGS84,2001-01-14T00:00:00Z,2001-06-28T00:00:00Z
  LOTA,XX,Otamapotiki,-38.727737074,176.582996403,760,WGS84,2001-01-20T00:00:00Z,2001-06-29T00:00:00Z
  LOTT,TG,East Cape,-37.5503977,178.1590412,0,NZGD2000,2008-10-10T00:00:00Z,9999-01-01T00:00:00Z
  LPAP,XX,Papakiri,-39.197747172,176.901398667,198,WGS84,2001-01-14T00:00:00Z,2001-06-28T00:00:00Z
  LPCC,SC,Lyttelton Port Company,-43.60785,172.724778,5,WGS84,2006-08-15T00:00:00Z,2018-06-14T23:59:59Z
  LPDS,NZ,Lyttelton Port,-43.6062917,172.7098333,0,WGS84,2018-08-24T03:40:00Z,9999-01-01T00:00:00Z
  LPEN,XX,Pentwyn,-39.555451735,175.628481631,706,WGS84,2001-01-25T20:07:00Z,2001-06-25T17:38:00Z
  LPIH,XX,Pihanui,-38.974043086,177.104901954,291,WGS84,2001-01-29T05:43:00Z,2001-05-01T18:03:00Z
  LPLS,SM,Lake Paringa Heritage Lodge,-43.71465288,169.42309374,23,WGS84,2002-04-02T00:00:00Z,9999-01-01T00:00:00Z
  LPOC,SX,Lyttelton Port Oil Wharf,-43.608378,172.714823,3,WGS84,2011-02-09T00:00:00Z,2018-03-13T01:00:00Z
  LPOR,XX,Poronui,-39.007041984,176.283491732,696,WGS84,2001-01-19T00:00:00Z,2001-06-28T00:00:00Z
  LRAN,XX,Rangitikei River,-39.475751,176.037986995,591,WGS84,2001-01-22T00:00:00Z,2001-06-19T00:00:00Z
  LRCZ,CY,Leaning Rock,-45.063668861,169.346274894,1533,WGS84,1987-01-31T00:00:00Z,1996-04-27T00:00:00Z
  LREZ,TR,Lake Rotokare,-39.4602,174.4027,220,NZGD2000,2010-01-27T00:00:00Z,9999-01-01T00:00:00Z
  LROS,XX,Ross Road,-39.047744251,176.955199855,293,WGS84,2001-01-28T01:45:00Z,2001-05-30T15:12:00Z
  LRSC,SC,Lauriston,-43.729389999,171.793634446,198,WGS84,2005-02-24T00:00:00Z,9999-01-01T00:00:00Z
  LRSS,SM,Randwick School,-41.2294301,174.90424587,3,WGS84,2011-07-15T00:00:00Z,9999-01-01T00:00:00Z
  LS16,XX,Tongariro River,-39.232445423,175.777684683,940,WGS84,2001-01-16T00:00:00Z,2001-06-21T00:00:00Z
  LS25,XX,Rangipo,-39.078542471,175.853186181,556,WGS84,2001-01-27T14:01:00Z,2001-06-17T07:25:00Z
  LSCZ,CY,Lilico Spur,-45.114670343,169.369274893,759,WGS84,1986-12-09T00:00:00Z,1996-05-01T00:00:00Z
  LSRC,SC,Lake Sumner Road,-42.869520062,172.543288463,335,WGS84,2004-11-28T00:00:00Z,9999-01-01T00:00:00Z
  LSTC,XX,Last Cove,-45.98458807,166.7801168,308,WGS84,2009-07-17T00:00:00Z,2009-09-05T00:00:00Z
  LTAT,XX,Tataraakina,-39.042443417,176.614895683,545,WGS84,2001-01-15T00:00:00Z,2001-06-27T00:00:00Z
  LTIM,XX,Timahanga,-39.40945009,176.245989811,806,WGS84,2001-01-24T04:04:00Z,2001-05-25T14:00:00Z
  LTZ,NZ,Lake Taylor Station,-42.781667157,172.27103538,648,WGS84,1989-10-12T00:00:00Z,9999-01-01T00:00:00Z
  LU2A,XX,Lauder 2,-45.0362,169.7047,395,WGS84,1996-03-01T00:00:00Z,1997-02-14T00:00:00Z
  LUDA,XX,Lauder,-45.0335,169.6871,382,WGS84,1995-11-16T00:00:00Z,1996-01-28T00:00:00Z
  LUMA,XX,Lumsden,-45.7228,168.4494,290,WGS84,1995-11-16T00:00:00Z,1996-04-01T00:00:00Z
  LWAI,XX,Waiotukupuna River,-38.707037712,177.073502487,609,WGS84,2001-01-22T02:06:00Z,2001-06-01T15:51:00Z
  LWHI,XX,Whirinaki,-38.83103913,176.5879961,925,WGS84,2001-01-25T02:31:00Z,2001-03-11T22:56:00Z
  LWKF,XX,Lake Wakatipu,-45.029565159,168.44256319,434,WGS84,1993-03-23T08:51:00Z,1993-06-22T16:53:00Z
  LWON,XX,Waione,-39.462449786,175.618981864,765,WGS84,2001-01-25T00:52:00Z,2001-06-25T17:38:00Z
  LWTT,XX,Waitata,-39.536253049,176.399691252,354,WGS84,2001-01-17T00:00:00Z,2001-06-28T00:00:00Z
  LYL,XX,Lyell,-41.796092667,172.043927228,80,WGS84,1991-01-28T22:39:00Z,1991-01-29T18:48:00Z
  LYLM,XX,Lyndon Lea,-42.844521378,173.297938332,80,WGS84,1993-10-23T05:00:00Z,1994-03-12T21:45:00Z
  MACQ,XX,Macquarie Island,-54.4973,158.9386,9999,WGS84,1996-01-10T00:00:00Z,1997-02-14T00:00:00Z
  MAGS,SM,Mount Albert Grammar School,-36.885338662,174.726040611,39,WGS84,2002-06-20T00:00:00Z,9999-01-01T00:00:00Z
  MAHC,XX,Mahia,-39.081046845,177.884911208,40,WGS84,2001-01-13T04:01:00Z,2001-06-26T00:32:00Z
  MAHO,XX,Mahinerangi,-45.81676,169.96434,478,WGS84,2014-03-14T00:00:00Z,2014-09-10T00:00:00Z
  MAHZ,HB,Mahia,-39.186548973,177.881010809,336,WGS84,1987-04-10T00:00:00Z,1997-08-04T00:00:00Z
  MAKA,XX,Makarora,-44.2504,169.2229,335,WGS84,1995-11-14T00:00:00Z,1996-04-08T00:00:00Z
  MAL,XX,Maling Pass,-42.212504331,172.69813358,1280,WGS84,1990-02-12T05:29:00Z,1990-02-18T01:08:00Z
  MANO,XX,Manorburn,-45.30825,169.63014,674,WGS84,2014-09-16T00:00:00Z,9999-01-01T00:00:00Z
  MANS,SX,Manapouri Power Station,-45.52122519,167.278064732,260,WGS84,2001-06-07T00:00:00Z,2015-06-30T00:00:00Z
  MAPM,XX,Maxwell Pass,-41.575292367,173.953852454,9999,WGS84,1993-10-19T06:34:00Z,1994-03-11T01:34:00Z
  MAR,XX,Maroa,-40.421971133,176.033983404,360,WGS84,1990-02-21T03:18:00Z,1990-02-22T21:28:00Z
  MARA,XX,Maruia,-41.9405,172.1994,297,WGS84,1995-11-11T00:00:00Z,1996-04-22T00:00:00Z
  MARE,XX,Marau Point,-38.29153219,178.325719186,60,WGS84,1994-07-27T02:26:00Z,1994-12-12T23:13:00Z
  MARR,XX,Marumaru RATS,-38.890242116,177.443506407,40,WGS84,1994-08-09T01:10:00Z,1994-12-09T19:42:00Z
  MARZ,RT,Manawahe,-37.984922962,176.674700105,480,WGS84,1992-06-16T00:00:00Z,9999-01-01T00:00:00Z
  MASF,XX,Mount Aspiring Station,-44.498651726,168.786770922,366,WGS84,1993-03-23T08:51:00Z,1993-06-08T23:17:00Z
  MASH,XX,Maori Saddle,-44.091241963,169.156778135,940,WGS84,2005-05-04T00:00:00Z,2005-05-24T00:00:00Z
  MATA,XX,Matakana,-36.30018857,174.672382102,243,WGS84,2002-08-28T12:44:00Z,2003-01-18T02:10:00Z
  MATR,XX,Mata River RATS,-37.960225589,178.165518287,180,WGS84,1994-07-29T05:12:00Z,1994-12-14T00:23:00Z
  MATS,SM,Matariki Wadsworth Road,-41.42895,172.7037,290,WGS84,2015-04-02T00:00:00Z,9999-01-01T00:00:00Z
  MATT,XX,Matapiro Road,-39.583554562,176.644394116,110,WGS84,1993-04-12T09:46:00Z,1993-04-25T16:27:00Z
  MAVS,SM,Martinborough Wines Vineyard,-41.210857507,175.461483109,33,WGS84,1999-08-20T00:00:00Z,9999-01-01T00:00:00Z
  MAVZ,CH,Matarangi,-39.2679133,175.5616533,2624.1,NZGD2000,2008-02-07T00:00:00Z,9999-01-01T00:00:00Z
  MAYA,XX,Mayfield,-43.7454,171.3694,530,WGS84,1995-11-13T00:00:00Z,1996-04-06T00:00:00Z
  MAYC,SC,Mayfield School,-43.82306143,171.421709104,258,WGS84,2004-11-29T00:00:00Z,9999-01-01T00:00:00Z
  MBAZ,AK,Motutapu Borehole,-36.768787,174.897918,60,WGS84,2012-10-08T00:00:00Z,9999-01-01T00:00:00Z
  MCAS,SM,Murchison Area School,-41.799933511,172.328030808,174,WGS84,2002-02-27T00:00:00Z,9999-01-01T00:00:00Z
  MCHD,XX,Mitchells,-43.658,171.99167,158,WGS84,2010-09-05T00:00:00Z,2010-09-29T00:00:00Z
  MCHZ,HB,McNeill Hill,-39.4441849,176.6966675,346,NZGD2000,2008-05-27T00:00:00Z,9999-01-01T00:00:00Z
  MCNS,SM,Mount Cook Annex,-43.73645,170.0972,740,WGS84,2008-05-10T00:00:00Z,9999-01-01T00:00:00Z
  MCPS,SM,Mount Cook National Park Headquarters,-43.733165337,170.095202333,757,WGS84,2002-07-03T00:00:00Z,2008-02-12T00:00:00Z
  MCQ,AU,Macquarie Island,-54.497344273,158.956043898,14,WGS84,1964-03-08T00:00:00Z,9999-01-01T00:00:00Z
  MDAF,XX,Middle Arm,-45.097564295,167.572551346,203,WGS84,1993-03-19T00:00:00Z,1993-08-20T00:00:00Z
  MECS,SM,Makarora Emergency Centre,-44.230445889,169.232938317,336,WGS84,2002-08-07T00:00:00Z,9999-01-01T00:00:00Z
  
negative.code: RRR,XX,Rough River,-42.182500748,171.620619989,300,WGS84,1991-01-31T08:19:00Z,1991-02-02T01:43:00Z
  RRRZ,RT,Republican Road,-38.33903935,176.514636932,493,WGS84,2007-12-10T00:00:00Z,9999-01-01T00:00:00Z
  RT01,NX,MRP Rotokawa 01,-38.62264,176.17208,371,NZGD2000,2008-07-02T00:00:00Z,9999-01-01T00:00:00Z
  RT02,NX,MRP Rotokawa 02,-38.60173,176.17658,346,NZGD2000,2008-07-02T21:27:01Z,9999-01-01T00:00:00Z
  RT03,NX,MRP Rotokawa 03,-38.60488,176.21815,337,NZGD2000,2008-07-03T00:00:00Z,9999-01-01T00:00:00Z
  RT05,NX,MRP Rotokawa 05,-38.63178,176.19599,369,NZGD2000,2008-07-02T00:00:00Z,9999-01-01T00:00:00Z
  RT06,NX,MRP Rotokawa 06,-38.61694,176.18922,366,NZGD2000,2008-07-03T00:00:00Z,9999-01-01T00:00:00Z
  RT07,NX,MRP Rotokawa 07,-38.60443,176.20653,320,NZGD2000,2008-07-02T22:54:02Z,9999-01-01T00:00:00Z
  RT08,NX,MRP Rotokawa 08,-38.61436,176.20201,341,NZGD2000,2008-07-03T00:00:00Z,9999-01-01T00:00:00Z
  RT09,NX,MRP Rotokawa 09,-38.61243,176.17524,339,NZGD2000,2008-10-30T00:00:00Z,9999-01-01T00:00:00Z
  RT10,NX,MRP Rotokawa 10,-38.61567,176.22112,408,NZGD2000,2008-10-30T00:00:00Z,9999-01-01T00:00:00Z
  RT11,NX,MRP Rotokawa 11,-38.599442,176.194057,330,NZGD2000,2008-07-07T22:05:02Z,9999-01-01T00:00:00Z
  RT12,NX,MRP Rotokawa 12,-38.614089,176.223066,400,NZGD2000,2011-05-29T00:00:10Z,9999-01-01T00:00:00Z
  RT13,NX,MRP Rotokawa 13,-38.591,176.1788,428,NZGD2000,2012-10-29T00:00:00Z,9999-01-01T00:00:00Z
  RT14,NX,MRP Rotokawa 14,-38.6168,176.1947,380,NZGD2000,2012-10-29T00:00:00Z,9999-01-01T00:00:00Z
  RT15,NX,MRP Rotokawa 15,-38.6122,176.2,352,NZGD2000,2012-10-29T00:00:00Z,9999-01-01T00:00:00Z
  RT16,NX,MRP Rotokawa 16,-38.6082,176.1784,336,NZGD2000,2012-10-29T00:00:00Z,9999-01-01T00:00:00Z
  RT17,NX,MRP Rotokawa 17,-38.6069,176.2272,342,NZGD2000,2012-10-29T00:00:00Z,9999-01-01T00:00:00Z
  RT18,NX,MRP Rotokawa 18,-38.606998,176.188968,308,WGS84,2013-03-14T00:00:00Z,9999-01-01T00:00:00Z
  RT19,NX,MRP Rotokawa 19,-38.608375,176.205294,312,WGS84,2013-03-14T23:02:00Z,9999-01-01T00:00:00Z
  RT20,NX,MRP Rotokawa 20,-38.601494,176.212467,300,WGS84,2013-03-14T23:02:00Z,9999-01-01T00:00:00Z
  RT21,NX,MRP Rotokawa 21,-38.6284,176.2245,250,WGS84,2013-08-28T00:00:00Z,9999-01-01T00:00:00Z
  RT22,NX,MRP Rotokawa 22,-38.580367,176.186985,423,WGS84,2015-06-24T00:00:00Z,2016-05-17T00:00:00Z
  RT23,NX,MRP Rotokawa 23,-38.600085,176.160466,447,WGS84,2015-06-25T00:00:00Z,9999-01-01T00:00:00Z
  