Plasma characterization at comet 67P between 2 and 4 AU from the Sun with the RPC-MIP instrument

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Table 1

Formulas used to derive the plasma parameters and their associated uncertainties.

Parameter	Units	Formulas	Relative uncertainties
n_tot	cm⁻³
n_h	cm⁻³	n_tot × μ	Δn_tot∕n_tot + Δμ∕μ
n_c	cm⁻³	n_tot − n_h	Δn_tot∕n_c + Δn_h∕n_c
T_h	eV		2 × Δλ_Dh∕λ_Dh + Δn_h∕n_h
T_c	eV	T_h∕τ	ΔT_h∕T_h + Δτ∕τ² ≈ ΔT_h∕T_h

Notes. μ = n_h∕n_tot. τ = T_h ∕T_c. The uncertainties due to the discretization of the parameters are Δf_tot = ±7 kHz, Δμ= ±0.05, Δτ = ±5, and Δλ_Dh = ±2.5 cm.

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