Dead reckoning specifications
The following performance applies for the Stellar-40 used for up to 20 minutes of navigation without GNSS input with adequate velocity aiding for each application:
| Position accuracy | |
|---|---|
| Land | 0.2% traveled distance |
| Marine | 0.5% traveled distance |
| Air | 1.0% traveled distance |
For more details on which aiding is the best suited to achieve this level of performance with your Stellar-40 in your application, contact our support team.
Traveled Distance
The specification in long dead reckoning is expressed in the percentage of the Traveled Distance (%TD) during the time without access to GNSS.
For example, for a car travelling at 90km/h, 7.5km will be traveled during an outage of 5 minutes. This leads to a drift of 15 meters (0.2% of 7500m).