The float was launched in a traid with NPS#66 and NPS#68 south of 36° N-parallel above the 1000-m isobath in an alongshore row about 20 km off the coastline. The distance between the points in the row was ~ 10 km (Figure 1).
The float was entrained in the undercurrent immediately after the launch and was moving along shore till May 15, 1999. At Punta Gorda the float turned offshore and was translated westward with an anticyclonic eddy (Figure 2). While in the eddy the float made three series of loops (Figure 4) with the following characteristics
Number of loops 5 2 7 Diameter, km 25.3 50.7 55.3 Duration, days 23.5 22 91.5 Period, days 4.7 11 13.1 Swirl velocity, cm/s 19.6 16.8 15.4 Translation velocity, cm/s 7.2 4.6 0.2 Direction, degrees 256 262 241 Rossby number 0.2 0.07 0.06
On October 12, 1999 the float left the eddy and was moving along a cyclonically curved arc southward, then east- and northward.
The float was ballasted for 275 dbar but the real depth reached by the float was deeper: 400.4 ± 5.3 dbar before January 8, 1999; then the float rose to 269.8 (on January 28, 1999) and again dived to ~400 dbar by February 24, 1999. Between February 24 and April 2, 1999 the float was moving at 400.2 ± 4.4 and then rose to 334.8 dbar just before it left the undercurrent. For the rest of the mission the pressure was 394.8 ± 7.2 (Figure 3)