The gyro has a syncro to digital converter installed and the NEMA heading messages are available for scientific use. The Mark 37 gyro relies on manual latitude and speed corrections. GPS Two Magnavox MX-200 GPS receivers. A GPS networked time code receiver is presently time synching the shipboard data acquisition system and the computer dynamic positioning system.
Software is available for time synching the networked PC-based scientific computers.
Traditional paper charts are used as well. Radar Two Raytheon navigational radars on the bridge. Both radars are used for collision avoidance and navigation. A Raytheon model DSN-450 Doppler sonar provides an indication of ship's speed, distance traveled and, at continental shelf depths, an indication of water depth. At deep ocean depths the speed is referenced to the water mass under the ship, water depth is inoperable.