Table 1.

LSE and two-point estimator comparison.

Method	ν0 (m/s)	θ0 (deg)	x* (cm)	xF (cm)
LSE
original	8.59	47.1	32.4	2.2
Δx0= -1.0 cm	8.60	47.0	32.1	3.3
estimate Δ	0.01	0.10	-0.3	1.1
2 PT
Original	8.43	45.6	32.3	-21.2
Δx0= -1.0 cm	8.64	44.2	31.3	10.4
estimate Δ	0.21	-1.4	-1.0	31.6