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Table 1

Parameters for the model fits in Fig. 2.

Fig. 2 Fig. 6
(a) (b) (c) (d)

Date [yymmdd] 140 718 140 921 150 111 150 730 150 110
RH [AU] 3.7 3.33 2.57 1.25 2.56
r [km] 7000 35 28 180 28

nn [107 cm-3] ... <3 6.6 6.6 5

Vk [V] 1.1 –4.6 –18.9 –12.4 (–25.8)
new [cm-3] 0.5 12.7 25 60 (120)
Tew [eV] 10 4.7 9 6 9
nec [cm-3] 1.4 ... (50) (1100) (90)
Tec [eV] 1.2 ... 1 (0.065) (0.02)
u [km s-1] 400 0.65 (2.0) (2.2) (4.5)
mi [amu] 1.06 18 (18) (18) (18)
If0 [nA] 7.2 8.5 12 26 12

Notes. Heliocentric distance RH, cometocentric distance r and COPS neutral gas density are given for context. The applicability of the fitted model for each example, and hence the interpretation of the parameters, is discussed in the text. Values in parentheses are not considered to accurately represent the actual plasma. Water ions are assumed for all cases except for the first. COPS density values are taken from Bieler et al. (2015), Vigren et al. (2016) and Goetz et al. (2016b).

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