54 SPAN-IGM User Manual Rev 2
Appendix A Technical Specifications
A.2 SPAN-IGM-S1 Technical Specifications
Table 14: SPAN-IGM-S1 Physical Specifications
Table 15: SPAN-IGM-S1 GNSS Performance
Table 16: SPAN-IGM-S1 Data Rates
Table 17: SPAN-IGM-S1 IMU Performance
PHYSICAL
Enclosure Size 152.0 mm x 141.5 mm x 50.5 mm
Weight 540 g
CONNECTORS
MAIN DB-15HD Female
AUX DB-15HD Male
RF Antenna Connector TNC Female
HORIZONTAL POSITION ACCURACY (RMS)
Single Point L1/L2 1.2 m
SBAS 0.6 m
DGPS 0.4 m
RT2 1 cm + 1 ppm
DATA RATES
GNSS Measurement 20 Hz
GNSS Position 20 Hz
IMU Measurement 125 Hz
INS solution Up to 125 Hz
Time accuracy 20 ns RMS
PERFORMANCE - GYROS
Gyro Input Range ± 400 °/second
In Run Gyro Rate Bias Stability 0.5 °/hour
Angular Random Walk 0.15 °/√hr
PERFORMANCE - ACCELEROMETERS
Accelerometer Range ± 10 g
In Run Accelerometer Bias Stability 0.05 mg
Velocity Random Walk 0.06 m/s/√hr
