Table 2.
Shock, magnetic cloud and small-scale flux rope times and selected properties at Solar Orbiter, Wind and BepiColombo.
| Spacecraft | Solar Orbiter | Wind (L1) | BepiColombo |
|---|---|---|---|
| Shock/Sheath | |||
| Shock time [UT] | 4/19 05:07 | 4/20 01:33 | 4/20 03:09 |
| nsh | [0.97, −0.23, −0.0057] | [0.92, −0.025, 0.38] | [0.55, −0.58, −0.59] |
| θBn | 43° | 73° | 50° |
| Bd/Bu | 2.3 | 2.1 | 1.7 |
| ΔTsheath [h] | 3.9 | 6.4 | 4.6 |
| Magnetic cloud | |||
| LE1 [UT] | 4/19 08:59 | 4/20 07:55 | 4/20 08:05 |
| LE2 [UT] | 4/19 13:53 | 4/20 11:50 | 4/20 13:25 |
| TE1 [UT] | 4/20 04:20 | 4/21 02:45 | 4/21 04:42 |
| TE2 [UT] | 4/20 09:15 | 4/21 12:05 | 4/21 10:20 |
| Mini-flux rope | |||
| LE [UT] | 4/19 07:05 | 4/20 05:55 | 4/20 07:17 |
| TE [UT] | 4/19 08:59 | 4/20 06:55 | 4/20 08:05 |
| ΔTSFR [h] | 1.9 | 0.82 | 0.68 |
| ⟨BSFR⟩ [nT] | 13.3 ± 1.0 | 8.8 ± 0.35 | 10.2 ± 0.61 |
| θSFR | 0° | 21° | 13° |
| ϕSFR | 75° | 118° | 79° |
| p | 0.0017 | 0.078 | 0.17 |
Notes. The shock time, shock normals (nsh) as calculated from the magnetic coplanarity method, shock angles (θBn), and downstream-to-upstream magnetic field ratios (Bd/Bu) are listed. The durations of the upstream/downstream averaging windows used in the determination of these parameters are: Solar Orbiter 5 min/4 min; Wind 10 min/10 min; and BepiColombo 8 min/4 min. The sheath duration (ΔTsheath) is also given. For the magnetic cloud, the leading edge (LE) and trailing edge (TE) times are listed. The cloud boundaries were ambiguous for this event, and so two possible leading and trailing edge times are given here. For the small-scale flux rope (SFR), the table lists: the leading and trailing edge times; SFR duration (ΔTSFR); mean magnetic field magnitude (⟨BSFR⟩); the latitude (θSFR) and longitude (ϕSFR) of the central axis direction; and the impact parameter (p), i.e., the ratio of the closest approach distance of the spacecraft from the SFR axis to the SFR radius.
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