# Filename: NOAA_LSA_PODS.Arc.Surface_Roughness.v01.20130425.10km.txt
#
# Users are free to use the information hosted on this site in their research, provided credit  is given to the NOAA National Environmental
# Satellite, Data, and Information Service (NESDIS) Center for Satellite Applications and Research (STAR) Laboratory for Satellite Altimetry (LSA).
#
# Data and images displayed on NOAA/NESDIS/STAR sites are provided for experimental use only and are not official operational NOAA products. More
# information is available at: http://www.star.nesdis.noaa.gov/star/productdisclaimer.php
#
# Data Description:
# This data file contains the NOAA / NESDIS / STAR / LSA Polar Ocean Data System (PODS) Arctic Surface Roughness Product. The Arctic Surface Roughness
# Product is derived from Airborne Topographic Mapper (ATM) lidar elevation data acquired during annual, low-altitude NASA Operation IceBridge
# airborne surveys over Arctic sea ice. IceBridge ATM data were acquired between March and May, 2009 - 2019.
#
# Due to the conical scanning geometry of the ATM lidar, across-track sampling is non-uniform, with sampling density greatest at the swath edges. To
# account for the variation in sample density, ATM elevation data are gridded (See Figure 1 on Data Product Webpage). Each grid cell has an along-track
# dimension of 30 m and an across-track dimension that is inversely proportional to the across-track sampling density. The grid configuration optimizes
# ATM sample density providing high-resolution measurements of sea ice surface roughness while still containing enough point measurements for robust
# statistical calculations. Statistics are computed on the distribution of sea ice surface roughness for 10 km along-track segments, for each aircraft
# flight line.
#
# Citation:
# Users are asked to cite the following publication whenever these data are used:
#  Connor, L., S. Farrell and D. McAdoo (2017), A decadal study of interannual variability in Arctic sea ice freeboard using airborne laser altimetry
#      (2006-2016), presented at the 2017 IGS International Symposium on Polar Ice, Polar Climate, and Polar Change, Boulder, Colorado, 14-19 Aug. 2017. 
#
# Point of Contact: Laurence.Connor@noaa.gov
#
# Data Product Webpage: https://www.star.nesdis.noaa.gov/sod/lsa/SeaIce/SeaIceSurfaceRoughness.php
#
# File format is comma separated ascii text, and columns are as follows:
# 1.  UTC Time (YYYY-MM-DD HH:MM:SS), associated with average data acquisition time within 10km segment
# 2.  Latitude (degrees), average of measurements within 10km segment
# 3.  Longitude (degrees), average of measurements within 10km segment
# 4.  Mean surface roughness (m), arithmetic mean of all surface roughness measurements in 10km segment
# 5.  Maximum surface roughness (m), maximum value of surface roughness in 10km segment
# 6.  Surface roughness 5th percentile (m), 5th percentile height of all surface roughness measurements in 10km segment
# 7.  Surface roughness 25th percentile (m), 25th percentile height of all surface roughness measurements in 10km segment
# 8.  Surface roughness 75th percentile (m), 75th percentile height of all surface roughness measurements in 10km segment
# 9.  Surface roughness 95th percentile (m), 95th percentile height of all surface roughness measurements in 10km segment
# 10. Surface roughness 99th percentile (m), 99th percentile height of all surface roughness measurements in 10km segment
#
#
#
#
#
# --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Time, Latitude, Longitude, Mean surface roughness, Maximum surface roughness, Surface roughness 5th percentile, Surface roughness 25th percentile, Surface roughness 75th percentile, Surface roughness 95th percentile, Surface roughness 99th percentile
2013-04-25 12:24:17,80.5743783107,-97.2210851602,0.13,0.54,0.05,0.08,0.16,0.28,0.47
2013-04-25 12:25:34,80.604477379,-97.73873677,0.16,0.51,0.04,0.05,0.21,0.43,0.48
2013-04-25 12:26:51,80.633558434,-98.260194447,0.33,0.62,0.05,0.25,0.42,0.52,0.59
2013-04-25 12:28:09,80.6623080642,-98.7839168197,0.30,0.75,0.12,0.18,0.40,0.55,0.63
2013-04-25 12:29:28,80.690094468,-99.311193772,0.32,0.73,0.16,0.24,0.39,0.52,0.59
2013-04-25 12:30:46,80.7171199523,-99.8415966521,0.35,0.98,0.13,0.23,0.41,0.77,0.91
2013-04-25 12:32:05,80.743617807,-100.379058236,0.27,0.86,0.05,0.09,0.38,0.54,0.68
2013-04-25 12:33:23,80.7689382071,-100.91619482,0.33,0.92,0.13,0.22,0.44,0.58,0.71
2013-04-25 12:34:41,80.793534107,-101.455499174,0.37,1.00,0.05,0.21,0.49,0.68,0.88
2013-04-25 12:35:59,80.817473129,-101.997365136,0.26,0.82,0.05,0.13,0.37,0.59,0.70
2013-04-25 12:37:17,80.84028775,-102.542500412,0.31,0.84,0.15,0.21,0.39,0.60,0.71
2013-04-25 12:38:35,80.862596632,-103.089803603,0.27,0.89,0.15,0.19,0.31,0.52,0.72
2013-04-25 12:39:53,80.883881358,-103.640012078,0.21,0.74,0.10,0.15,0.24,0.36,0.48
2013-04-25 12:41:11,80.904363734,-104.192680902,0.25,0.72,0.11,0.17,0.32,0.43,0.52
2013-04-25 12:42:28,80.924109505,-104.747630896,0.18,0.61,0.07,0.12,0.23,0.34,0.44
2013-04-25 12:43:46,80.942810335,-105.305199867,0.21,0.65,0.10,0.15,0.25,0.36,0.49
2013-04-25 12:45:04,80.960776403,-105.86486387,0.25,0.80,0.12,0.18,0.31,0.46,0.61
2013-04-25 12:46:22,80.978064965,-106.42648216,0.23,0.84,0.10,0.15,0.29,0.49,0.68
2013-04-25 12:47:41,80.994336811,-106.990368654,0.18,0.66,0.08,0.12,0.23,0.34,0.43
2013-04-25 12:48:59,81.009781101,-107.556186214,0.18,0.56,0.08,0.11,0.23,0.36,0.44
2013-04-25 12:50:16,81.024347195,-108.123889576,0.20,0.45,0.10,0.14,0.24,0.34,0.39
2013-04-25 12:51:34,81.037865183,-108.693545121,0.19,0.68,0.09,0.12,0.24,0.37,0.53
2013-04-25 12:52:50,81.05068197,-109.264699237,0.19,0.53,0.08,0.14,0.23,0.35,0.44
2013-04-25 12:54:07,81.062738952,-109.837322876,0.18,0.56,0.08,0.12,0.22,0.32,0.39
2013-04-25 12:55:24,81.073754613,-110.411548072,0.26,0.73,0.13,0.19,0.32,0.45,0.59
2013-04-25 12:56:41,81.083954674,-110.987072992,0.16,0.60,0.05,0.10,0.21,0.30,0.44
2013-04-25 12:57:59,81.093336815,-111.563812758,0.18,0.63,0.05,0.12,0.22,0.35,0.49
2013-04-25 12:59:16,81.1015761,-112.14184656,0.25,0.86,0.11,0.18,0.30,0.43,0.53
2013-04-25 13:00:33,81.109165761,-112.72075805,0.24,0.66,0.12,0.17,0.29,0.39,0.54
2013-04-25 13:01:50,81.115763749,-113.300635048,0.19,0.55,0.06,0.12,0.24,0.33,0.41
2013-04-25 13:03:07,81.121608036,-113.881251338,0.16,0.61,0.07,0.10,0.20,0.29,0.36
2013-04-25 13:04:23,81.126287826,-114.462656617,0.16,0.52,0.07,0.10,0.19,0.28,0.38
2013-04-25 13:05:40,81.130211615,-115.044578121,0.17,0.40,0.09,0.12,0.20,0.28,0.34
2013-04-25 13:06:57,81.133289554,-115.626938112,0.19,0.77,0.08,0.12,0.24,0.36,0.52
2013-04-25 13:08:14,81.135283115,-116.209662403,0.18,0.56,0.08,0.12,0.21,0.31,0.43
2013-04-25 13:09:32,81.136659808,-116.792573054,0.19,0.53,0.09,0.12,0.24,0.35,0.45
2013-04-25 13:10:49,81.136878543,-117.375607596,0.18,0.87,0.06,0.12,0.22,0.33,0.60
2013-04-25 13:12:07,81.136278466,-117.958614881,0.20,0.45,0.09,0.14,0.24,0.33,0.41
2013-04-25 13:13:24,81.134773867,-118.541484488,0.23,0.61,0.07,0.13,0.29,0.44,0.55
2013-04-25 13:14:41,81.132353095,-119.124093321,0.16,0.64,0.08,0.12,0.19,0.28,0.42
2013-04-25 13:15:58,81.129089904,-119.706336814,0.19,0.48,0.07,0.13,0.23,0.36,0.44
2013-04-25 13:17:16,81.124862624,-120.288079228,0.18,0.52,0.09,0.14,0.22,0.29,0.34
2013-04-25 13:18:33,81.119689987,-120.869200655,0.16,0.72,0.08,0.12,0.20,0.28,0.39
2013-04-25 13:19:50,81.11318206,-121.449389992,0.15,0.64,0.08,0.10,0.18,0.27,0.36
2013-04-25 13:21:07,81.107045291,-122.029345461,0.15,0.76,0.06,0.10,0.18,0.27,0.43
2013-04-25 13:22:24,81.099060958,-122.607881127,0.17,0.63,0.09,0.12,0.20,0.29,0.40
2013-04-25 13:23:41,81.090264959,-123.185389587,0.17,0.73,0.09,0.13,0.20,0.29,0.40
2013-04-25 13:24:58,81.080745541,-123.761833276,0.17,0.48,0.09,0.13,0.21,0.30,0.36
2013-04-25 13:26:15,81.070331883,-124.336992576,0.17,0.37,0.09,0.12,0.20,0.28,0.33
2013-04-25 13:27:32,81.058936759,-124.910681721,0.15,0.59,0.06,0.11,0.18,0.25,0.34
2013-04-25 13:28:49,81.046777072,-125.482967669,0.14,0.35,0.08,0.11,0.17,0.25,0.32
2013-04-25 13:30:06,81.033801814,-126.053733544,0.19,0.48,0.09,0.15,0.23,0.30,0.36
2013-04-25 13:31:23,81.019637794,-126.622469534,0.19,0.74,0.08,0.12,0.22,0.45,0.56
2013-04-25 13:32:40,81.004791351,-127.189580448,0.20,0.54,0.09,0.13,0.25,0.39,0.49
2013-04-25 13:33:57,80.989150514,-127.754860143,0.15,0.48,0.06,0.10,0.19,0.28,0.34
2013-04-25 13:35:13,80.97256592,-128.318039014,0.18,0.52,0.07,0.11,0.23,0.35,0.46
2013-04-25 13:36:30,80.95509702,-128.879084392,0.15,0.71,0.07,0.09,0.17,0.32,0.58
2013-04-25 13:37:48,80.936887753,-129.438080256,0.15,0.55,0.08,0.11,0.18,0.27,0.35
2013-04-25 13:39:05,80.917929086,-129.994936513,0.15,0.51,0.07,0.10,0.19,0.28,0.40
2013-04-25 13:40:22,80.897785216,-130.54893264,0.14,0.44,0.06,0.10,0.17,0.24,0.31
2013-04-25 13:41:40,80.876913483,-131.100605646,0.17,0.41,0.08,0.12,0.21,0.30,0.37
2013-04-25 13:42:57,80.855441916,-131.650097582,0.16,0.44,0.08,0.11,0.20,0.27,0.32
2013-04-25 13:44:14,80.832991653,-132.196738512,0.12,0.42,0.07,0.09,0.14,0.23,0.31
2013-04-25 13:45:32,80.809717896,-132.740669017,0.15,0.32,0.08,0.12,0.17,0.22,0.28
2013-04-25 13:46:49,80.785655705,-133.281864286,0.17,0.39,0.09,0.13,0.20,0.26,0.33
2013-04-25 13:48:07,80.7608239,-133.820277485,0.18,0.53,0.08,0.11,0.21,0.34,0.45
2013-04-25 13:49:24,80.73507756,-134.355565669,0.15,0.38,0.08,0.10,0.18,0.25,0.28
2013-04-25 13:50:42,80.708678339,-134.888137727,0.17,0.58,0.09,0.12,0.21,0.28,0.43
2013-04-25 13:51:59,80.681425477,-135.417535938,0.19,0.61,0.08,0.13,0.22,0.40,0.48
2013-04-25 13:53:16,80.653418744,-135.943874662,0.14,0.49,0.08,0.10,0.17,0.26,0.38
2013-04-25 13:54:33,80.624607711,-136.466978825,0.15,0.38,0.08,0.10,0.17,0.26,0.31
2013-04-25 13:55:50,80.59506471,-136.986935981,0.17,0.59,0.08,0.11,0.20,0.33,0.46
2013-04-25 13:57:07,80.564766339,-137.503628316,0.12,0.42,0.04,0.08,0.15,0.28,0.35
2013-04-25 13:58:24,80.533720086,-138.017002955,0.14,0.40,0.08,0.11,0.17,0.24,0.34
2013-04-25 13:59:41,80.501926168,-138.526995965,0.14,0.49,0.07,0.09,0.18,0.27,0.37
2013-04-25 14:00:58,80.469392783,-139.033562384,0.14,0.35,0.08,0.11,0.16,0.23,0.30
2013-04-25 14:02:14,80.436196918,-139.536839099,0.16,0.49,0.08,0.11,0.18,0.27,0.33
2013-04-25 14:03:31,80.40217094,-140.036353019,0.15,0.49,0.08,0.11,0.18,0.27,0.33
2013-04-25 14:04:48,80.367556828,-140.532642514,0.18,0.57,0.09,0.12,0.20,0.34,0.41
2013-04-25 14:06:04,80.332074349,-141.024950756,0.15,0.45,0.08,0.10,0.18,0.25,0.34
2013-04-25 14:07:21,80.296012279,-141.513957775,0.16,0.45,0.07,0.12,0.19,0.27,0.35
2013-04-25 14:08:37,80.259242871,-141.999295776,0.18,0.50,0.09,0.14,0.21,0.26,0.32
2013-04-25 14:09:54,80.221787494,-142.480975125,0.16,0.44,0.07,0.11,0.20,0.30,0.38
2013-04-25 14:11:11,80.183650145,-142.958953845,0.16,0.45,0.09,0.12,0.19,0.25,0.35
2013-04-25 14:12:28,80.144881852,-143.433331881,0.15,0.39,0.08,0.12,0.18,0.24,0.31
2013-04-25 14:13:45,80.105415563,-143.903875863,0.16,0.41,0.09,0.11,0.19,0.26,0.32
2013-04-25 14:15:02,80.065352214,-144.370842958,0.15,0.49,0.05,0.07,0.20,0.28,0.35
2013-04-25 14:16:19,80.024588641,-144.833896408,0.12,0.61,0.04,0.09,0.16,0.23,0.29
2013-04-25 14:17:36,79.983182606,-145.29316209,0.15,0.41,0.08,0.11,0.19,0.25,0.30
2013-04-25 14:18:54,79.941193658,-145.748784226,0.16,0.67,0.08,0.12,0.19,0.26,0.32
2013-04-25 14:20:11,79.898610444,-146.20070073,0.15,0.39,0.07,0.11,0.18,0.24,0.28
2013-04-25 14:21:29,79.85540101,-146.648774185,0.13,0.32,0.08,0.10,0.16,0.20,0.24
2013-04-25 14:22:46,79.811545101,-147.092937384,0.14,0.40,0.07,0.09,0.16,0.24,0.30
2013-04-25 14:24:04,79.767140093,-147.533452514,0.14,0.44,0.07,0.09,0.17,0.24,0.31
2013-04-25 14:25:22,79.722061992,-147.969893543,0.14,0.50,0.07,0.09,0.17,0.26,0.38
2013-04-25 14:26:40,79.6765335,-148.402961412,0.16,0.72,0.08,0.11,0.19,0.32,0.43
2013-04-25 14:28:00,79.6288209087,-148.84619718,0.20,0.37,0.10,0.17,0.25,0.30,0.32
2013-04-25 14:34:10,79.466924919,-148.38253025,0.15,0.36,0.04,0.10,0.18,0.25,0.31
2013-04-25 14:35:38,79.454452574,-147.864876276,0.09,0.38,0.04,0.05,0.12,0.21,0.29
2013-04-25 14:37:01,79.441946768,-147.379105616,0.09,0.34,0.04,0.05,0.12,0.17,0.24
2013-04-25 14:38:25,79.428739715,-146.894472712,0.13,0.37,0.07,0.09,0.16,0.23,0.28
2013-04-25 14:39:48,79.414801397,-146.411065393,0.15,0.31,0.07,0.11,0.19,0.25,0.28
2013-04-25 14:41:11,79.400107065,-145.928963039,0.13,0.54,0.05,0.08,0.17,0.27,0.37
2013-04-25 14:42:34,79.3847225512,-145.448174103,0.09,0.38,0.04,0.05,0.12,0.21,0.30
2013-04-25 14:43:57,79.3685368252,-144.968868649,0.10,0.33,0.04,0.05,0.13,0.20,0.27
2013-04-25 14:45:19,79.351702825,-144.490954561,0.15,0.40,0.05,0.07,0.21,0.29,0.34
2013-04-25 14:46:42,79.333975988,-144.014759334,0.19,0.47,0.10,0.14,0.22,0.31,0.37
2013-04-25 14:48:05,79.315745783,-143.539902443,0.18,0.44,0.10,0.14,0.21,0.27,0.33
2013-04-25 14:49:27,79.296733887,-143.066759787,0.20,0.65,0.09,0.14,0.24,0.33,0.48
2013-04-25 14:50:50,79.277142559,-142.595140737,0.15,0.39,0.06,0.11,0.18,0.28,0.34
2013-04-25 14:52:12,79.256572674,-142.125604701,0.18,0.59,0.10,0.14,0.21,0.34,0.45
2013-04-25 14:53:34,79.235496304,-141.657611064,0.17,0.49,0.08,0.12,0.21,0.32,0.40
2013-04-25 14:54:57,79.213516251,-141.191730969,0.17,0.49,0.09,0.13,0.20,0.26,0.35
2013-04-25 14:56:19,79.191101652,-140.72739168,0.17,0.48,0.09,0.13,0.20,0.32,0.41
2013-04-25 14:57:41,79.16779787,-140.26526883,0.17,0.37,0.09,0.13,0.20,0.27,0.31
2013-04-25 14:59:03,79.143873084,-139.805044761,0.15,0.46,0.09,0.11,0.17,0.25,0.32
2013-04-25 15:00:25,79.119258938,-139.3468649,0.15,0.39,0.06,0.11,0.18,0.26,0.32
2013-04-25 15:01:46,79.094057722,-138.890607698,0.19,0.74,0.07,0.12,0.23,0.34,0.44
2013-04-25 15:03:08,79.068068443,-138.436643788,0.17,0.49,0.09,0.11,0.21,0.29,0.39
2013-04-25 15:04:29,79.041563179,-137.984587997,0.15,0.32,0.09,0.12,0.17,0.24,0.29
2013-04-25 15:05:51,79.014258202,-137.534947012,0.16,0.43,0.09,0.12,0.20,0.27,0.35
2013-04-25 15:07:12,78.986296227,-137.087531877,0.17,0.49,0.09,0.13,0.20,0.27,0.39
2013-04-25 15:08:34,78.957699102,-136.642351281,0.16,0.38,0.09,0.12,0.19,0.24,0.30
2013-04-25 15:09:55,78.928486968,-136.199410182,0.18,0.55,0.08,0.13,0.22,0.33,0.43
2013-04-25 15:11:16,78.898608104,-135.75884373,0.14,0.39,0.08,0.10,0.17,0.26,0.31
2013-04-25 15:12:37,78.868130307,-135.320567832,0.18,0.53,0.09,0.12,0.21,0.32,0.41
2013-04-25 15:13:58,78.836992117,-134.884728536,0.17,0.72,0.08,0.11,0.20,0.34,0.54
2013-04-25 15:15:19,78.805137092,-134.451487741,0.15,0.54,0.08,0.11,0.17,0.23,0.29
2013-04-25 15:16:39,78.772891324,-134.020239799,0.14,0.43,0.06,0.10,0.17,0.26,0.34
2013-04-25 15:18:00,78.739821105,-133.591878267,0.15,0.42,0.09,0.12,0.18,0.25,0.31
2013-04-25 15:19:21,78.706209982,-133.165878413,0.15,0.39,0.08,0.11,0.18,0.26,0.35
2013-04-25 15:20:42,78.671988736,-132.742399054,0.15,0.45,0.07,0.10,0.19,0.28,0.34
2013-04-25 15:22:04,78.637255093,-132.321272863,0.20,0.46,0.09,0.15,0.24,0.33,0.39
2013-04-25 15:23:25,78.601804125,-131.902972439,0.19,0.47,0.11,0.14,0.23,0.31,0.39
2013-04-25 15:24:47,78.565805812,-131.487165626,0.17,0.67,0.08,0.11,0.22,0.31,0.39
2013-04-25 15:26:08,78.529289714,-131.073807735,0.16,0.52,0.09,0.12,0.19,0.29,0.39
2013-04-25 15:27:30,78.49207304,-130.663336327,0.16,0.51,0.09,0.12,0.19,0.29,0.41
2013-04-25 15:28:53,78.454380468,-130.255275472,0.18,0.52,0.07,0.12,0.23,0.30,0.36
2013-04-25 15:30:15,78.416054134,-129.850013818,0.14,0.48,0.06,0.09,0.18,0.27,0.35
2013-04-25 15:31:38,78.377206942,-129.447320021,0.18,0.58,0.10,0.13,0.22,0.33,0.44
2013-04-25 15:33:00,78.337899274,-129.047062262,0.21,0.53,0.13,0.17,0.25,0.32,0.37
2013-04-25 15:34:23,78.297835901,-128.649974482,0.16,0.43,0.09,0.12,0.20,0.28,0.34
2013-04-25 15:35:45,78.257352426,-128.255270066,0.15,0.46,0.07,0.10,0.18,0.27,0.34
2013-04-25 15:37:08,78.21632672,-127.863270032,0.17,0.49,0.07,0.11,0.21,0.30,0.39
2013-04-25 15:38:30,78.174751701,-127.474012539,0.14,0.67,0.04,0.10,0.18,0.25,0.37
2013-04-25 15:39:52,78.132693551,-127.087342578,0.17,0.59,0.08,0.12,0.21,0.32,0.40
2013-04-25 15:41:15,78.090034889,-126.70358985,0.15,0.49,0.07,0.10,0.18,0.28,0.36
2013-04-25 15:42:38,78.046895591,-126.322464445,0.22,0.55,0.08,0.15,0.27,0.40,0.50
2013-04-25 15:44:01,78.0032546108,-125.94403445,0.17,0.43,0.08,0.12,0.20,0.30,0.38
2013-04-25 15:45:23,77.95910512,-125.568333411,0.23,0.77,0.11,0.15,0.27,0.39,0.65
2013-04-25 15:46:46,77.914418984,-125.195451771,0.15,0.47,0.05,0.08,0.21,0.32,0.42
2013-04-25 15:48:09,77.869368859,-124.824933117,0.18,0.50,0.10,0.14,0.22,0.30,0.40
2013-04-25 15:49:32,77.823658807,-124.457614591,0.17,0.58,0.07,0.12,0.19,0.30,0.46
2013-04-25 15:50:56,77.777615627,-124.092595296,0.18,0.53,0.10,0.13,0.21,0.30,0.40
2013-04-25 15:52:19,77.7309322198,-123.730756226,0.21,1.03,0.09,0.12,0.27,0.45,0.66
2013-04-25 15:53:43,77.683829374,-123.37147512,0.18,0.54,0.08,0.13,0.22,0.30,0.34
2013-04-25 15:55:07,77.63653842,-123.014091851,0.17,0.58,0.09,0.12,0.19,0.33,0.44
2013-04-25 15:56:31,77.588419962,-122.660484429,0.21,0.60,0.10,0.15,0.25,0.34,0.47
2013-04-25 15:57:55,77.539910584,-122.309387895,0.20,0.76,0.08,0.12,0.25,0.38,0.46
2013-04-25 15:59:20,77.491105071,-121.960515993,0.22,0.92,0.11,0.14,0.27,0.43,0.68
2013-04-25 16:00:45,77.441724478,-121.614720103,0.22,0.76,0.09,0.13,0.27,0.49,0.61
2013-04-25 16:02:09,77.391980344,-121.271368378,0.24,0.85,0.09,0.15,0.30,0.44,0.60
2013-04-25 16:03:33,77.341708359,-120.930972639,0.25,0.88,0.11,0.16,0.32,0.50,0.68
2013-04-25 16:04:58,77.291057794,-120.593259232,0.31,0.92,0.12,0.20,0.38,0.57,0.74
2013-04-25 16:06:13,77.2453808717,-120.293398187,0.24,1.19,0.11,0.16,0.29,0.44,0.73