Navigation Specifications

Specification	Boreas D70	Boreas D90
Roll & Pitch Accuracy	0.01 °	0.005 °
Roll & Pitch Accuracy (Kinematica post processing)	0.01 °	0.005 °
Heading Accuracy without GNSS (Secant Latitude RMS)	0.1 °	0.01 °
Gyrocompassing Coarse Alignment	2 min	2 min
Gyrocompassing Fine Alignment (typical)	10 min	10 min
Heave Accuracy (whichever is greater)	2 % or 0.02 m	2 % or 0.02 m
Rotation Range	Unlimited	Unlimited
Hot Start Time	2 s	2 s
Internal Filter Rate	1000 Hz	1000 Hz
Output Data Rate	1000 Hz	1000 Hz

Boreas Orientation Specifications

Specification	Boreas D70	Boreas D90
Horizontal Position Accuracy	1.2 m	1.2 m
Vertical Position Accuracy	2.0 m	2.0 m
Horizontal Position Accuracy (SBAS)	0.5 m	0.5 m
Vertical Position Accuracy (SBAS)	0.8 m	0.8 m
Horizontal Position Accuracy (with RTK or Kinematica Post Processing)	0.01 m	0.01 m
Vertical Position Accuracy (with RTK or Kinematica Post Processing)	0.015 m	0.015 m
Accuracy with Odometer without GNSS (% of distance travelled)	0.05%	0.01%
Accuracy with DVL without GNSS (% of distance travelled)	0.05%	0.01%
Velocity Accuracy	0.005 m/s	0.005 m/s
Heading Accuracy with Dual GNSS (1.0 m antenna separation)	0.01 °	0.006 °
Heading Accuracy (Kinematica post processing)	0.01 °	0.006 °

Boreas Navigation Specifications