SEP-C25-0028
April 20, 2022
Science case
Widespread event. Radial alignment of BepiColombo and Earth
Widespread event. Radial alignment of BepiColombo and Earth
Flare date/time [UTC]
2022-04-20 03:41:00
2022-04-20 03:41:00
Flare class (GOES)
X2.2
X2.2
Flare Carrington latitude
-34°
-34°
Flare Carrington longitude
230°
230°
Flare comments
—
—
Radio type II bursts
PSP, Wind, GB
PSP, Wind, GB
Decametric type II burst
Start time [UT]
03:45
End time [UT]
04:33
Frequency range
20-3.5 MHz
Metric type II burst
Start time [UT]
03:55
End time [UT]
04:03
Frequency range
25-180 MHz
Imaging available
No
Radio comments
RSTN
RSTN
| BepiColombo | L1 (SOHO/Wind) | Parker Solar Probe | STEREO A | Solar Orbiter | |
|---|---|---|---|---|---|
| Radial distance [au] | 0.68 | 0.99 | 0.75 | 0.97 | 0.57 |
| Carrington latitude [deg] | -3 | -5 | 4 | -7 | 4 |
| Carrington longitude [deg] | 146 | 144 | 262 | 112 | 297 |
| e- (~1 MeV) / p (25-40 MeV) ratio |
—
|
1.80e+04 |
—
|
—
|
—
|
| p 25 MeV | |||||
| Onset date [UTC] |
—
|
2022-04-20 |
—
|
—
|
—
|
| Onset time [UTC] |
—
|
>=04:23:48 |
—
|
—
|
—
|
| Averaging used for onset [min] |
—
|
30 |
—
|
—
|
—
|
| Sector used for onset |
—
|
—
|
—
|
—
|
—
|
| Peak date [UTC] |
—
|
2022-04-20 |
—
|
—
|
2022-04-20 |
| Peak time [UTC] |
—
|
10:23:48 |
—
|
—
|
04:45:01 |
| Peak flux [cm-2s-1sr-1MeV-1] | 3.83e-03 | 6.09e-04 |
—
|
5.67e-04 | 5.15e-04 |
| Averaging used for peak [min] | 60 | 30 |
—
|
10 | 150 |
| Sector used for peak | 2 |
—
|
—
|
—
|
south |
| Inferred injection date [UTC] |
—
|
2022-04-20 |
—
|
—
|
—
|
| Inferred injection time [UTC] |
—
|
03:46:00 |
—
|
—
|
—
|
| Spiral length used for inferred injection time [au] |
—
|
1.15 |
—
|
—
|
—
|
| Solar wind speed [km/s] |
—
|
405 |
—
|
—
|
—
|
| Comments | No event, probably due to data gap | Small event | No event | Event too small to determine onset | |
| e- 100 keV | |||||
| Onset date [UTC] | 2022-04-20 | 2022-04-20 |
—
|
—
|
2022-04-20 |
| Onset time [UTC] | 04:36:30 | 04:30:00 |
—
|
—
|
<=04:55:01 |
| Averaging used for onset [min] | 1 | 20 |
—
|
—
|
10 |
| Sector used for onset | 0 | 0 |
—
|
—
|
asun |
| Peak date [UTC] |
—
|
2022-04-20 |
—
|
—
|
2022-04-20 |
| Peak time [UTC] |
—
|
07:50:00 |
—
|
—
|
>=10:45:01 |
| Peak flux [cm-2s-1sr-1MeV-1] |
—
|
5.41e+03 |
—
|
—
|
>=6.11e+02 |
| Averaging used for peak [min] |
—
|
20 |
—
|
—
|
10 |
| Sector used for peak |
—
|
0 |
—
|
—
|
asun |
| Inferred injection date [UTC] | 2022-04-20 | 2022-04-20 |
—
|
—
|
2022-04-20 |
| Inferred injection time [UTC] | 04:26:00 | 04:13:00 |
—
|
—
|
04:46:00 |
| Spiral length used for inferred injection time [au] | 0.73 | 1.15 |
—
|
—
|
0.59 |
| Solar wind speed [km/s] |
—
|
402 |
—
|
—
|
—
|
| Comments | No event | No event. Period of ion contamination | Particles from anti-sun direction. Onset during period of ion contamination. Data gap probably masking real peak | ||
| e- 1 MeV | |||||
| Onset date [UTC] | 2022-04-20 | 2022-04-20 |
—
|
—
|
2022-04-20 |
| Onset time [UTC] | ~04:36:00 | 04:15:00 |
—
|
—
|
<=04:45:00 |
| Averaging used for onset [min] | 4 | 2 |
—
|
—
|
10 |
| Sector used for onset |
—
|
—
|
—
|
—
|
asun |
| Peak date [UTC] |
—
|
2022-04-20 |
—
|
2022-04-20 | 2022-04-20 |
| Peak time [UTC] |
—
|
06:45:00 |
—
|
15:30:00 | 10:15:00 |
| Peak flux [cm-2s-1sr-1MeV-1] |
—
|
3.65e+00 |
—
|
4.60e-02 | 3.19e+00 |
| Averaging used for peak [min] |
—
|
10 |
—
|
60 | 10 |
| Sector used for peak |
—
|
—
|
—
|
—
|
north |
| Inferred injection date [UTC] | 2022-04-20 | 2022-04-20 |
—
|
—
|
2022-04-20 |
| Inferred injection time [UTC] | 04:30:00 | 04:05:00 |
—
|
—
|
04:40:00 |
| Spiral length used for inferred injection time [au] | 0.73 | 1.15 |
—
|
—
|
0.59 |
| Solar wind speed [km/s] |
—
|
405 |
—
|
—
|
—
|
| Comments | Onset determination by eye. Data gap during rise phase masking peak | No event, data gaps | Event too small to determine onset | Particles from anti-sun direction. Data gap probably masking real peak | |