Quality-checked, one-hour cruise track of the Antarctic Circumnavigation Expedition (ACE) undertaken during the austral summer of 2016/2017.

Data file(s): ace_cruise_track_1hourc_YYYY-MM.csv

File header:

date_time: date and time of recording of data point in ISO 8601 format YYYY-MM-DDThh:mm:ss+00:00 [UTC]
latitude: latitude recorded by instrument [decimal degrees North]
longitude: longitude recorded by instrument [decimal degrees East]
fix_quality: quality of the position fix as extracted from the GPGGA NMEA string 
number_satellites: number of satellites to which the instrument was connected to obtain the position fix
horiz_dilution_of_position: error in horizontal position measurement resulting from navigation measurement
altitude: altitude of the body being measured above mean sea level [metres]
altitude_units: units used to measure the altitude
geoid_height: height of the geoid above mean sea level [metres]
geoid_height_units: units used the measure the height of the geoid
device_id: id number of the instrument used to measure the position of the vessel GLONASS = 64, Trimble = 63
measureland_qualifier_flag_overall: Measureand Qualifier Flag used to flag data points overall