File Format ID: HLY_das_grav

Format Description Creation Date: 2019-07-31

File Type: ASCII, comma-separated values

Record Format: Gravimeter output string with external date/time stamp.

Data Format Description:
The file contains bgm3 gravimeter data strings prefixed by an external date/time stamp.

gravimeter fields are defined below. Example Record:
gravimeter_bgm221,2014-05-12T23:59:40Z,04:025157 00

Instrument Detail:
Bell Aerospace BGM-3 Marine Gravity Meter
The raw gravity measurements are stored as counts 

These files have the following format:
gravimeter_bgm221 - gravimeter id
2014-05-12T23:59:40Z -	date/time time 
						2014 - year
						05 - month
						12 -day of month
						23 - hour
						59 - minute
						40 - second
						Z - timezone
04 - output frequency (Hz)
025157 -	counts, raw gravity reading (unitless)
00	-	sensor status (unitless)
