An analysis of the 2016 Hitomi breakup event

Earth, Planets and Space

Table 1 Mean event epoch (t ₀) and confidence interval limits from all methods

Method	−3σ	−2σ	−1σ	t ₀	+1σ	+2σ	+3σ
CA	−14.00	−9.33	−4.67	+00.00	+4.67	+9.33	+14.00
GD	−3.58	−2.45	−1.28	+10.95	+1.55	+3.72	+4.97
GD + CA	−3.32	−2.20	−1.12	+10.13	+1.23	+2.68	+4.62
GA	−0.05	−0.03	−0.02	+10.51	+0.02	+0.03	+0.05
GA + CA	−0.05	−0.03	−0.02	+10.51	+0.02	+0.03	+0.05

All values are given in minutes. The t ₀ values relate to the mean estimated event time from the close approach (CA) method. All standard deviations relate to the t ₀ value of the respective method. CA—close approach. GD—Gaussian VoP using all debris. GD + CA—combined result of close approach and Gaussian VoP using all debris. GA—Gaussian VoP using Hitomi main body only. GA + CA—combined result of close approach and Gaussian VoP using Hitomi main body only