Table 1

The determined density compression ratios X and Mach numbers MA with the corresponding ranges of height r. This table provides the full ranges of these values with the averages and standard deviations.

Date Time X MA
2011 March 7 20:24 UT 4.8–7.4 1.4–4.6 (2.4 ± 0.8) 1.2–4.2 (1.8 ± 0.6)
  20:39 UT 6.9–10.1 1.4–4.3 (2.4 ± 0.7) 1.2–4.6 (1.7 ± 0.5)
  20:54 UT 8.5–12.5 1.3–4.8 (2.6 ± 0.8) 1.2–5.2 (1.8 ± 0.5)
2014 February 25 01:24 UT 6.3–8.7 1.6–3.0 (2.3 ± 0.3) 0.1–2.1 (1.1 ± 0.6)
  01:39 UT 8.1–11.4 1.5–2.9 (2.1 ± 0.3) 1.3–1.9 (1.6 ± 0.1)
  01:54 UT 10.0–13.9 1.6–2.9 (2.3 ± 0.4) 1.3–1.9 (1.6 ± 0.2)

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