Table 2
Extended partial HCS crossings in encounters 4 and 5.
| Start time(a) | Dur(b) | PSP vel in | SW VR | R dimension | R dimension | VR jet in | B | Distance to |
|---|---|---|---|---|---|---|---|---|
| (UT) | (h) | RTN(c) | SC frame(d) | using PSP vel(e) | SW vel(f) (RS) | current | closed/ | Sun(i) |
| (km s−1) | (km s−1) | (RS) | sheet(g) | Discon(h) | (RS) | |||
| 2020-01-30/13:31:00 | 3.5 | 24.5, 102.2, 2.5 | 190 | 0.44 | 3.4 | + | Discon | 30 |
| 2020-01-31/19:54:00 | 3.2 | 34.2, 93.1, 3.7 | 225 | 0.56 | 3.7 | + | Discon | 35 |
| 2020-06-04/03:56:00 | 2.1 | –44.2, 76.9, –5.1 | 340 | 0.47 | 3.6 | + | Discon | 39 |
Notes. (a) Begin time of partial HCS crossing. (b) Duration of partial HCS crossing. (c) Spacecraft velocity in RTN in Sun’s frame. (d) Radial component of the solar wind velocity in spacecraft frame. (e)Estimated blob dimension along the PSP radial trajectory assuming stationary blob. (f) Estimated blob dimension along R assuming blob propagation with the solar wind. (g) Radial velocity in HCS: Enhanced (+), reduced (-), or no jet (none) relative to external solar wind flow. (h) Closed or disconnected magnetic field signatures based on counterstreaming or dropout of strahl electron fluxes, respectively. (i) HCS crossing distance from the Sun.
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