Open Access

Table 1

Coefficients and their 2-sigma errors for the ordinary least squares (OLS) linear regression fits shown in Figure 4, for 10-day means of Pα/Po and am, where Pα/(Po)fit = s·am + c.

Data Line colour line in Figure 4 Slope, s Error in s, ξs Intercept, c Error in c, ξc
All Green 0.0445 ±0.0023 0.2299 ±0.0431
Equinox, Δteq < 0.125 Black 0.0432 ±0.0003 0.2128 ±0.0051
Solstice, Δteq ≥ 0.125 Orange 0.0469 ±0.0002 0.2053 ±0.0043
Difference (equinox-solstice) −0.0037 ±0.0003 0.0075 ±0.0067

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.