OpenTopography LAS Registration and Processing Report

Dataset: Central Otago, Otago, New Zealand 2021

Short name: NZ21_Onslow
opentopoID: OTLAS.112023.2193.1
Report generated on 2026-11-11 by OpenTopography Data Registration Service

Point Inspection Summary

Total Area of Tiles (m2)820,017,823
Sum of Area of Convex Hulls as Determined by Scan (m2)730,621,607.888
Total Number of Bytes on Disk22,456,559,811
Total Number of Points as Reported in Headers6,316,499,314
Total Number of Points as Determined by Scan6,316,499,314
Mean Point Density as Reported in Headers (points/m2)7.70
Mean Point Density as Determined by Scan (points/m2)8.65
File Breakdown by LAS versions1.4 (2,381 files)
File Breakdown by LAS file typesLAZ (2,381 files)
File Breakdown by Source IDs0 (2,381 files)
File Breakdown by System IDsLAStools (c) by rapidlasso GmbH (2,381 files)
File Breakdown by Generating Software IDslas2las64 (version 200304) (2,379 files)
las2las (version 200509) (2 files)
File Breakdown by Point Data Record formats (Data Format ID)7 (2,381 files)
File Breakdown by Global Encodings[NULL] (2,381 files)
Point Breakdown by Returns (return: count)1: 6,256,013,119
2: 51,969,871
3: 7,932,123
4: 584,201
5: 0
Point Breakdown by Classifications (class: name: points)
Class 1 - Unclassified2,159,783,459
Class 2 - Ground3,270,182,479
Class 3 - Low Vegetation541,533,382
Class 4 - Medium Vegetation105,458,502
Class 5 - High Vegetation163,777,941
Class 6 - Building2,065,984
Class 7 - Low Point (low noise)35,835
Class 9 - Water73,579,246
Class 17 - Bridge Deck31,648
Class 18 - High Noise50,838
File Breakdown by Coordinate Reference Systems2,381 files have Horizontal Coordinate System 
PROJCS["NZGD2000 / New Zealand Transverse Mercator 2000",GEOGCS["NZGD2000",DATUM["New_Zealand_Geodetic_Datum_2000",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6167"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4167"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",173],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",1600000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Northing",NORTH],AXIS["Easting",EAST],AUTHORITY["EPSG","2193"]]

2,381 files have Vertical Coordinate System 
VERT_CS["NZVD2016 height",VERT_DATUM["New Zealand Vertical Datum 2016",2005,AUTHORITY["EPSG","1169"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","7839"]]

Included Attributes

X positionsyes
Y positionsyes
Z positionsyes
Intensityyes
Return Numberyes
Number of Returnsyes
Scan Direction Flagyes
Edge of Flight Lineyes
Classificationyes
Scan Angle Rankyes
User Datayes
Point Source IDyes
GPS Timeyes
RGByes

Minimum and Maximum Attributes (min, max)

XYZ Positions[1310080.0, 4927200.0, 17.632], [1342239.999, 4971839.999, 1267.918]
Intensity0, 65535
Return Number1, 4
Number of Returns1, 4
Scan Direction Flag0, 1
Edge of Flight Line0, 1
Classification1, 18
Scan Angle Rank-10.00199986, 9.0
User Data0, 0
Point Source ID1, 165
GPS Time3.056696136E8, 3.061139223E8
RGB Colors0, 65280
File Creation Day283, 294
File Creation Year2021, 2021

Summary of Warnings

There is no warning to report.

LAS File Content

# File Name Creation Year Creation DoY Is Compressed Bytes Software ID
141123B6201.laz2013135true58,162,886Las Monkey 1.4.6
241123B6202.laz2013135true120,691,980Las Monkey 1.4.6
341123B6203.laz2013135true75,304,097Las Monkey 1.4.6
441123B6204.laz2013135true3,076,235Las Monkey 1.4.6
541123B6206.laz2013135true29,635Las Monkey 1.4.6
641123B6207.laz2013135true14,833,678Las Monkey 1.4.6
741123B6208.laz2013135true8,977,545Las Monkey 1.4.6
841123C6315.laz2013135true12,959,339Las Monkey 1.4.6
941123C6320.laz2013135true64,531,590Las Monkey 1.4.6
1041123C6325.laz2013135true12,180,855Las Monkey 1.4.6
1141123C6406.laz2013135true2,171,305Las Monkey 1.4.6
1241123C6407.laz2013135true18,260,685Las Monkey 1.4.6
1341123C6411.laz2013135true96,245,018Las Monkey 1.4.6
1441123C6412.laz2013135true123,242,835Las Monkey 1.4.6
1541123C6413.laz2013135true39,101,581Las Monkey 1.4.6
1641123C6416.laz2013135true95,370,932Las Monkey 1.4.6
1741123C6417.laz2013135true108,199,042Las Monkey 1.4.6
1841123C6418.laz2013135true121,542,418Las Monkey 1.4.6
1941123C6421.laz2013135true102,878,480Las Monkey 1.4.6
2041123C6422.laz2013135true120,685,568Las Monkey 1.4.6
2141123C6423.laz2013135true86,235,867Las Monkey 1.4.6
2241123C6424.laz2013135true12,246,492Las Monkey 1.4.6

Header Information

# File Name Point Count minX minY minZ maxX maxY maxZ Area Density
141123B6201.laz11,712,537442573.04565341.0536.0443447.04566735.01247.0859,879.14813.62
241123B6202.laz23,903,889443436.04565333.0282.0444494.04566729.01258.01,525,587.62615.67
341123B6203.laz16,414,285444484.04565329.084.0445542.04566721.0958.01,226,610.63513.38
441123B6204.laz758,391445537.04566119.076.0445863.04566713.0804.081,443.0249.31
541123B6206.laz4,570443406.04565326.0532.0443436.04565341.0588.02,215.6962.06
641123B6207.laz3,105,855443436.04564961.0219.0444484.04565341.01092.0290,259.81810.70
741123B6208.laz1,974,015444481.04564991.0111.0445001.04565333.0849.0151,939.412.99
841123C6315.laz2,663,134441713.04569512.0429.0442427.04570171.01047.0277,102.4529.61
941123C6320.laz13,136,450441552.04568125.0417.0442422.04569518.01243.01,015,213.12212.94
1041123C6325.laz2,510,411442020.04567163.0576.0442411.04568128.01144.0225,216.20211.15
1141123C6406.laz449,552443217.04570892.0507.0443481.04571136.0659.053,242.0048.44
1241123C6407.laz3,611,813443479.04570886.0553.0444260.04571297.01365.0250,549.214.42
1341123C6411.laz19,837,100442422.04569504.0264.0443479.04570894.01210.01,294,710.63315.32
1441123C6412.laz24,580,630443469.04569496.0266.0444524.04570892.01390.01,505,445.33216.33
1541123C6413.laz8,058,558444515.04569491.0596.0445130.04570582.01389.0399,522.92120.17
1641123C6416.laz19,543,332442411.04568116.0258.0443469.04569512.01233.01,485,736.74213.15
1741123C6417.laz22,971,006443458.04568108.0209.0444515.04569504.01079.01,566,582.2114.66
1841123C6418.laz24,515,736444505.04568102.0204.0445362.04569496.01237.01,141,633.71121.47
1941123C6421.laz20,886,556442403.04566729.0531.0443458.04568124.01258.01,484,171.2414.07
2041123C6422.laz24,702,763443447.04566721.0209.0444505.04568116.01223.01,535,546.75516.09
2141123C6423.laz18,018,739444494.04566713.0155.0445546.04568108.01000.01,343,456.52213.41
2241123C6424.laz2,497,295445542.04566710.095.0445880.04567302.0757.0212,781.25711.74

Results from File Scan

# File Name Point Count minX minY minZ maxX maxY maxZ Area Density
141123B6201.laz11,712,537442573.04565341.0536.0443447.04566735.01247.0859,879.14813.62
241123B6202.laz23,903,889443436.04565333.0282.0444494.04566729.01258.01,525,587.62615.67
341123B6203.laz16,414,285444484.04565329.084.0445542.04566721.0958.01,226,610.63513.38
441123B6204.laz758,391445537.04566119.076.0445863.04566713.0804.081,443.0249.31
541123B6206.laz4,570443406.04565326.0532.0443436.04565341.0588.02,215.6962.06
641123B6207.laz3,105,855443436.04564961.0219.0444484.04565341.01092.0290,259.81810.70
741123B6208.laz1,974,015444481.04564991.0111.0445001.04565333.0849.0151,939.412.99
841123C6315.laz2,663,134441713.04569512.0429.0442427.04570171.01047.0277,102.4529.61
941123C6320.laz13,136,450441552.04568125.0417.0442422.04569518.01243.01,015,213.12212.94
1041123C6325.laz2,510,411442020.04567163.0576.0442411.04568128.01144.0225,216.20211.15
1141123C6406.laz449,552443217.04570892.0507.0443481.04571136.0659.053,242.0048.44
1241123C6407.laz3,611,813443479.04570886.0553.0444260.04571297.01365.0250,549.214.42
1341123C6411.laz19,837,100442422.04569504.0264.0443479.04570894.01210.01,294,710.63315.32
1441123C6412.laz24,580,630443469.04569496.0266.0444524.04570892.01390.01,505,445.33216.33
1541123C6413.laz8,058,558444515.04569491.0596.0445130.04570582.01389.0399,522.92120.17
1641123C6416.laz19,543,332442411.04568116.0258.0443469.04569512.01233.01,485,736.74213.15
1741123C6417.laz22,971,006443458.04568108.0209.0444515.04569504.01079.01,566,582.2114.66
1841123C6418.laz24,515,736444505.04568102.0204.0445362.04569496.01237.01,141,633.71121.47
1941123C6421.laz20,886,556442403.04566729.0531.0443458.04568124.01258.01,484,171.2414.07
2041123C6422.laz24,702,763443447.04566721.0209.0444505.04568116.01223.01,535,546.75516.09
2141123C6423.laz18,018,739444494.04566713.0155.0445546.04568108.01000.01,343,456.52213.41
2241123C6424.laz2,497,295445542.04566710.095.0445880.04567302.0757.0212,781.25711.74

Spatial Reference (detailed in JSON format) 

{

	"horizontal":"PROJCS[\"NZGD2000 \/ New Zealand Transverse Mercator 2000\",GEOGCS[\"NZGD2000\",DATUM[\"New_Zealand_Geodetic_Datum_2000\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6167\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4167\"]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",173],PARAMETER[\"scale_factor\",0.9996],PARAMETER[\"false_easting\",1600000],PARAMETER[\"false_northing\",10000000],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Northing\",NORTH],AXIS[\"Easting\",EAST],AUTHORITY[\"EPSG\",\"2193\"]]",

	"wkt":"PROJCS[\"NZGD2000 \/ New Zealand Transverse Mercator 2000\",GEOGCS[\"NZGD2000\",DATUM[\"New_Zealand_Geodetic_Datum_2000\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6167\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4167\"]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",173],PARAMETER[\"scale_factor\",0.9996],PARAMETER[\"false_easting\",1600000],PARAMETER[\"false_northing\",10000000],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Northing\",NORTH],AXIS[\"Easting\",EAST],AUTHORITY[\"EPSG\",\"2193\"]]",

	"isgeocentric":false,

	"prettywkt":"PROJCS[\"NZGD2000 \/ New Zealand Transverse Mercator 2000\",\n    GEOGCS[\"NZGD2000\",\n        DATUM[\"New_Zealand_Geodetic_Datum_2000\",\n            SPHEROID[\"GRS 1980\",6378137,298.257222101,\n                AUTHORITY[\"EPSG\",\"7019\"]],\n            AUTHORITY[\"EPSG\",\"6167\"]],\n        PRIMEM[\"Greenwich\",0,\n            AUTHORITY[\"EPSG\",\"8901\"]],\n        UNIT[\"degree\",0.0174532925199433,\n            AUTHORITY[\"EPSG\",\"9122\"]],\n        AUTHORITY[\"EPSG\",\"4167\"]],\n    PROJECTION[\"Transverse_Mercator\"],\n    PARAMETER[\"latitude_of_origin\",0],\n    PARAMETER[\"central_meridian\",173],\n    PARAMETER[\"scale_factor\",0.9996],\n    PARAMETER[\"false_easting\",1600000],\n    PARAMETER[\"false_northing\",10000000],\n    UNIT[\"metre\",1,\n        AUTHORITY[\"EPSG\",\"9001\"]],\n    AXIS[\"Northing\",NORTH],\n    AXIS[\"Easting\",EAST],\n    AUTHORITY[\"EPSG\",\"2193\"]]",

	"proj4":"+proj=tmerc +lat_0=0 +lon_0=173 +k=0.9996 +x_0=1600000 +y_0=10000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +vunits=m +no_defs",

	"vertical":"VERT_CS[\"NZVD2016 height\",VERT_DATUM[\"New Zealand Vertical Datum 2016\",2005,AUTHORITY[\"EPSG\",\"1169\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Gravity-related height\",UP],AUTHORITY[\"EPSG\",\"7839\"]]",

	"prettycompoundwkt":"COMPD_CS[\"NZGD2000 \/ New Zealand Transverse Mercator 2000 + NZVD2016 height\",\n    PROJCS[\"NZGD2000 \/ New Zealand Transverse Mercator 2000\",\n        GEOGCS[\"NZGD2000\",\n            DATUM[\"New_Zealand_Geodetic_Datum_2000\",\n                SPHEROID[\"GRS 1980\",6378137,298.257222101,\n                    AUTHORITY[\"EPSG\",\"7019\"]],\n                AUTHORITY[\"EPSG\",\"6167\"]],\n            PRIMEM[\"Greenwich\",0,\n                AUTHORITY[\"EPSG\",\"8901\"]],\n            UNIT[\"degree\",0.0174532925199433,\n                AUTHORITY[\"EPSG\",\"9122\"]],\n            AUTHORITY[\"EPSG\",\"4167\"]],\n        PROJECTION[\"Transverse_Mercator\"],\n        PARAMETER[\"latitude_of_origin\",0],\n        PARAMETER[\"central_meridian\",173],\n        PARAMETER[\"scale_factor\",0.9996],\n        PARAMETER[\"false_easting\",1600000],\n        PARAMETER[\"false_northing\",10000000],\n        UNIT[\"metre\",1,\n            AUTHORITY[\"EPSG\",\"9001\"]],\n        AXIS[\"Northing\",NORTH],\n        AXIS[\"Easting\",EAST],\n        AUTHORITY[\"EPSG\",\"2193\"]],\n    VERT_CS[\"NZVD2016 height\",\n        VERT_DATUM[\"New Zealand Vertical Datum 2016\",2005,\n            AUTHORITY[\"EPSG\",\"1169\"]],\n        UNIT[\"metre\",1,\n            AUTHORITY[\"EPSG\",\"9001\"]],\n        AXIS[\"Gravity-related height\",UP],\n        AUTHORITY[\"EPSG\",\"7839\"]]]",

	"units":{"horizontal":"metre","vertical":"metre"},

	"isgeographic":false,

	"compoundwkt":"COMPD_CS[\"NZGD2000 \/ New Zealand Transverse Mercator 2000 + NZVD2016 height\",PROJCS[\"NZGD2000 \/ New Zealand Transverse Mercator 2000\",GEOGCS[\"NZGD2000\",DATUM[\"New_Zealand_Geodetic_Datum_2000\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6167\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4167\"]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",173],PARAMETER[\"scale_factor\",0.9996],PARAMETER[\"false_easting\",1600000],PARAMETER[\"false_northing\",10000000],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Northing\",NORTH],AXIS[\"Easting\",EAST],AUTHORITY[\"EPSG\",\"2193\"]],VERT_CS[\"NZVD2016 height\",VERT_DATUM[\"New Zealand Vertical Datum 2016\",2005,AUTHORITY[\"EPSG\",\"1169\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Gravity-related height\",UP],AUTHORITY[\"EPSG\",\"7839\"]]]"

}