Table 1.

Reconstruction of the Largest Observed Particle Ejection Events

Event date and		6 January 2019		19 January 2019		11 February 2019
time (UTC, ±1σ)		20:50:28 ± 47 s		00:53:55 ± 40 s		23:28:35 ± 38 s
Ejection location		Near	Far	Neara	Far	Nearb	Far
Latitude (°, ±3σ)		$-75.0_{-2.8}^{+12.7}$	$-57.3_{-17.5}^{+1.5}$	$46.6_{-6.0}^{+2.9}$	$23.2_{-3.8}^{+5.7}$	$11.0_{-6.6}^{+7.9}$	$25.2_{-9.8}^{+11.3}$
Longitude (°, ±3σ)		$325.3_{-10.3}^{+18.9}$	$343.7_{-14.7}^{+3.8}$	$327.7_{-3.5}^{+4.6}$	$334.2_{-3.9}^{+3.7}$	$59.7_{-7.5}^{+8.1}$	$60.1_{-8.0}^{+8.2}$
Local solar time (±3σ)		$15:22_{-00:36}^{+01:06}$	$16:35_{-01:05}^{+00:06}$	$16:10_{-00:06}^{+00:09}$	$16:36_{-00:06}^{+00:04}$	$18:12_{-00:22}^{+00:24}$	$18:13_{-00:23}^{+00:24}$
Particles analyzedb		117		13		30
Inertial	Minc	0.069	0.072	0.482	0.511	0.086	0.090
particle	Median	0.210	0.220	0.851	0.902	0.131	0.136
velocities	Mean	0.464	0.486	0.866	0.918	0.151	0.158
(m/s)	Maxb	3.111	3.261	1.221	1.294	0.511	0.533

^a The near solutions for the 19 January and 11 February events were ruled out as possibilities by Leonard et al. (2020) based on higher‐fidelity OD analysis enabled by three or more observations (see section 4).

^b Slower particles were observed in later images that are not included in this analysis.

^c Particles were observed up to the edge of the image fields of view, meaning that if there were any faster particles, they would not have been observed.