Identification of a single plasma parcel during a radial alignment of the Parker Solar Probe and Solar Orbiter

Solar Orbiter First Results (Nominal Mission Phase)

Open Access

Table 1.

Correlation coefficients between PSP and Solar Orbiter measurements for the proton density N_p and the magnetic field magnitude B at τ = 137.6 h (see the dashed line in Fig. 7 and Sect. 4.2).

	Correlation coefficients
Physical Quantity	ρ_X, Y	$\frac{σ_{X, Y}}{\max (σ_{X, Y})}$ $\frac{\sigma_{X,Y}}{\mathrm{max}(\sigma_{X,Y})}$	$\frac{1 / χ_{X, Y}}{\max (1 / χ_{X, Y})}$ $\frac{1/ \chi_{X,Y}}{\mathrm{max}(1/ \chi_{X,Y})}$
N_p	0.90	1	1
B	0.81	0.97	1

Notes. Due to the normalization, a value of one for the coefficients using σ_X, Y and 1/χ_X, Y indicates an absolute maximum over the tested intervals.

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