lasinfo (210720) report for '69an1.laz' reporting all LAS header entries: file signature: 'LASF' file source ID: 1 global_encoding: 1 project ID GUID data 1-4: 00002021-0004-0000-0000-000000000000 version major.minor: 1.4 system identifier: 'VQ1560II' generating software: 'TerraScan 21.029' file creation day/year: 224/2021 header size: 375 offset to point data: 1101 number var. length records: 2 point data format: 1 point data record length: 34 number of point records: 76742933 number of points by return: 63562814 10109619 2573194 447405 49901 scale factor x y z: 0.001 0.001 0.001 offset x y z: 0 0 0 min x y z: 173906.285 318750.001 44.325 max x y z: 174999.999 324999.999 98.438 start of waveform data packet record: 0 start of first extended variable length record: 0 number of extended_variable length records: 0 extended number of point records: 76742933 extended number of points by return: 63562814 10109619 2573194 447405 49901 0 0 0 0 0 0 0 0 0 0 variable length header record 1 of 2: reserved 0 user ID 'LASF_Spec' record ID 4 length after header 576 description 'RIEGL Extra Bytes' Extra Byte Descriptions data type: 3 (unsigned short), name "Amplitude", description: "Echo signal amplitude [dB]", min: 0, max: 10000, scale: 0.01, offset: 0 (not set) data type: 4 (short), name "Reflectance", description: "Echo signal reflectance [dB]", min: -5000, max: 15000, scale: 0.01, offset: 0 (not set) data type: 3 (unsigned short), name "Deviation", description: "Pulse shape deviation", min: 0, max: 65535, scale: 1 (not set), offset: 0 (not set) variable length header record 2 of 2: reserved 0 user ID 'LASF_Projection' record ID 34735 length after header 40 description 'by LAStools of rapidlasso GmbH' GeoKeyDirectoryTag version 1.1.0 number of keys 4 key 1024 tiff_tag_location 0 count 1 value_offset 1 - GTModelTypeGeoKey: ModelTypeProjected key 3072 tiff_tag_location 0 count 1 value_offset 28992 - ProjectedCSTypeGeoKey: Amersfoort / RD New key 3076 tiff_tag_location 0 count 1 value_offset 9001 - ProjLinearUnitsGeoKey: Linear_Meter key 4099 tiff_tag_location 0 count 1 value_offset 9001 - VerticalUnitsGeoKey: Linear_Meter the header is followed by 2 user-defined bytes LASzip compression (version 3.4r3 c2 50000): POINT10 2 GPSTIME11 2 BYTE 2 reporting minimum and maximum for all LAS point record entries ... X 173906285 174999999 Y 318750001 324999999 Z 44325 98438 intensity 0 4901 return_number 1 5 number_of_returns 1 7 edge_of_flight_line 0 1 scan_direction_flag 0 1 classification 1 9 scan_angle_rank -30 29 user_data 6 7 point_source_ID 513 604 gps_time 312814055.920477 312815983.441556 attribute0 0 0 ('Amplitude') attribute1 -16.79 32.34 ('Reflectance') attribute2 0 65535 ('Deviation') number of first returns: 63562814 number of intermediate returns: 3159145 number of last returns: 63379703 number of single returns: 53358729 overview over extended number of returns of given pulse: 53358729 15011802 6452862 1653095 246435 18985 1025 0 0 0 0 0 0 0 0 histogram of classification of points: 43176341 unclassified (1) 33546649 ground (2) 19943 water (9)