OpenTopography LAS Validation Report for AU17Strathalbyn

Point Inspection Summary

Total Area of Tiles (m²)	5,538,065.07
Sum of Area of Per-Tile as Determined by Scan (m²)	5,538,065.07
Total Number of Bytes on Disk	2,234,462,667
Total Number of Points as Reported in Headers	459,842,944
Total Number of Points as Determined by Scan	459,842,944
Mean Point Density as Reported in Headers (points/m²)	83.03
Mean Point Density as Determined by Scan (points/m²)	83.03
LAS Versions Processed	1.2 (2 files)
LAS File Types Processed	LAZ (2 files)
LAS File Signatures Processed	LASF (2 files)
File Breakdown by Source ID	0: 2 file(s)
File Breakdown by System ID	LAStools (c) by rapidlasso GmbH: 2 file(s)
File Breakdown by Generating Software ID	lasmerge (version 171215): 2 file(s)
Point Breakdown by Return (return: header / actual)	1: 393,314,976 / 393,314,976 2: 49,865,656 / 49,865,656 3: 13,529,523 / 13,529,523 4: 2,642,660 / 2,642,660 5: 427,414 / 427,414
Point Breakdown by Pulse (pulse: actual)	1: 4,474 2: 343,435,831 3: 72,669,900 4: 32,668,651 5: 8,866,737 6: 1,858,961 7: 299,274 8: 39,116
Point Breakdown by Classification (class: name: points)	1: Unclassified: 1,227,668 2: Ground: 374,202,088 3: Low Vegetation: 11,337,807 4: Medium Vegetation: 23,559,907 5: High Vegetation: 49,515,474
File Breakdown by Coordinate Reference System	2 files of type [Projected Coordinate System] Horizontal CRS: GDA94 / MGA zone 55 [metre] Vertical CRS: PROJCS["GDA94 / MGA zone 55" [GEOGCS["GDA94"]

Included Attributes

X positions	yes
Y positions	yes
Z positions	yes
Intensity	yes
Return Number	yes
Number of Returns	yes
Scan Direction Flag	yes
Edge of Flight Line	yes
Classification	yes
Scan Angle Rank	yes
User Data	yes
Point Source ID	yes
GPS Time	yes

Minimum and Maximum Attributes (min, max)

Time	169, 86,181
Return Number	0, 7
Return Count	0, 7
Flightline Edge	0, 0
Intensity	0, 65529
Scan Direction Flag	0, 0
Scan Angle Rank	0, 0
Classification	1, 5
Point Source ID	111, 430
User Data	0, 255
Minimum RGB Colors	0, 0, 0
Maximum RGB Colors	0, 0, 0
File Creation Day	40, 254
File Creation Year	2017, 2018
Bounding Box of Tiles	(533160.0700000001, 7764796.26), (535384.22, 7768212.38)
Z-Axis Values	-28.531, 114.093
Bounding Box of All Points	(533160.0700000001, 7764796.26), (535384.22, 7768212.38)
Z-Axis Values	-28.531, 114.093

Summary of Warnings

There are no warnings to report.

LAS File Content

#	fileName	fcYear	fcDay	isCompressed	bytes	softwareID
1	ot_01_02_igc2.laz	2017	254	true	778,914,997	lasmerge (version 171215)
2	ot_03_04_igc2.laz	2018	40	true	1,455,547,670	lasmerge (version 171215)

Header Information

#	FileName	PointCount	minX	minY	minZ	maxX	maxY	maxZ	Area	Density
1	ot_01_02_igc2.laz	163,046,048	533,160.07	7,766,819.68	36.87	534,864.68	7,768,212.38	102.23	2,374,010.35	68.68
2	ot_03_04_igc2.laz	296,796,896	533,913.62	7,764,796.26	-28.53	535,384.22	7,766,947.80	114.09	3,164,054.72	93.80

Results from File Scan

#	FileName	PointCount	minX	minY	minZ	maxX	maxY	maxZ	Area	Density
1	ot_01_02_igc2.laz	163,046,048	533,160.07	7,766,819.68	36.87	534,864.68	7,768,212.38	102.23	2,374,010.35	68.68
2	ot_03_04_igc2.laz	296,796,896	533,913.62	7,764,796.26	-28.53	535,384.22	7,766,947.80	114.09	3,164,054.72	93.80

File Breakdown by Spatial Reference (Detailed)

2 files use the Projected Coordinate System 'GDA94 / MGA zone 55', measured in 'metre'
These files use the vertical coordinate system 'PROJCS["GDA94 / MGA zone 55"', measured in 'GEOGCS["GDA94"'
The full text of this spatial coordinate system is as follows:
<proj4>+proj=utm +zone=55 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +unit
s=m +no_defs </proj4><prettywkt>PROJCS["GDA94 / MGA zone 55",
     GEOGCS["GDA94",
         DATUM["Geocentric_Datum_of_Australia_1994",
             SPHEROID["GRS 1980",6378137,298.2572221010002,
                 AUTHORITY["EPSG","7019"]],
             TOWGS84[0,0,0,0,0,0,0],
             AUTHORITY["EPSG","6283"]],
         PRIMEM["Greenwich",0],
         UNIT["degree",0.0174532925199433],
         AUTHORITY["EPSG","4283"]],
     PROJECTION["Transverse_Mercator"],
     PARAMETER["latitude_of_origin",0],
     PARAMETER["central_meridian",147],
     PARAMETER["scale_factor",0.9996],
     PARAMETER["false_easting",500000],
     PARAMETER["false_northing",10000000],
     UNIT["metre",1,
         AUTHORITY["EPSG","9001"]],
     AUTHORITY["EPSG","28355"]]</prettywkt><wkt>PROJCS["GDA94 / MGA 
zone 55",GEOGCS["GDA94",DATUM["Geocentric_Datum_of_Australia_1994",SPHEROID["GRS
 1980",6378137,298.2572221010002,AUTHORITY["EPSG","7019"]],TOWGS84[0,0,0,0,0,0,0
],AUTHORITY["EPSG","6283"]],PRIMEM["Greenwich",0],UNIT["degree",0.01745329251994
33],AUTHORITY["EPSG","4283"]],PROJECTION["Transverse_Mercator"],PARAMETER["latit
ude_of_origin",0],PARAMETER["central_meridian",147],PARAMETER["scale_factor",0.9
996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT
["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","28355"]]</wkt><c
ompoundwkt>PROJCS["GDA94 / MGA zone 55",GEOGCS["GDA94",DATUM["Geocentric_Datu
m_of_Australia_1994",SPHEROID["GRS 1980",6378137,298.2572221010002,AUTHORITY["EP
SG","7019"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6283"]],PRIMEM["Greenwich"
,0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4283"]],PROJECTION["Tran
sverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian"
,147],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMET
ER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY
["EPSG","28355"]]</compoundwkt><prettycompoundwkt>PROJCS["GDA94 / MG
A zone 55",
     GEOGCS["GDA94",
         DATUM["Geocentric_Datum_of_Australia_1994",
             SPHEROID["GRS 1980",6378137,298.2572221010002,
                 AUTHORITY["EPSG","7019"]],
             TOWGS84[0,0,0,0,0,0,0],
             AUTHORITY["EPSG","6283"]],
         PRIMEM["Greenwich",0],
         UNIT["degree",0.0174532925199433],
         AUTHORITY["EPSG","4283"]],
     PROJECTION["Transverse_Mercator"],
     PARAMETER["latitude_of_origin",0],
     PARAMETER["central_meridian",147],
     PARAMETER["scale_factor",0.9996],
     PARAMETER["false_easting",500000],
     PARAMETER["false_northing",10000000],
     UNIT["metre",1,
         AUTHORITY["EPSG","9001"]],
     AUTHORITY["EPSG","28355"]]</prettycompoundwkt><gtiff>Geotiff_In
formation:
    Version: 1
    Key_Revision: 1.0
    Tagged_Information:
       End_Of_Tags.
    Keyed_Information:
       GTModelTypeGeoKey (Short,1): ModelTypeProjected
       GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
       GTCitationGeoKey (Ascii,29): "GDA94 / MGA zone 55 + PROJCS"
       GeogCitationGeoKey (Ascii,6): "GDA94"
       GeogAngularUnitsGeoKey (Short,1): Angular_Degree
       GeogTOWGS84GeoKey (Double,3): 0                0                0        
        
       ProjectedCSTypeGeoKey (Short,1): PCS_GDA94_MGA_zone_55
       ProjLinearUnitsGeoKey (Short,1): Linear_Meter
       End_Of_Keys.
    End_Of_Geotiff.
 </gtiff>

OpenTopography LAS Registration and Processing Report