SEP-C25-0004
May 7, 2021
Science case
2-spacecraft event
2-spacecraft event
Flare date/time [UTC]
2021-05-07 18:43:00
2021-05-07 18:43:00
Flare class (GOES)
M3.9
M3.9
Flare Carrington latitude
17°
17°
Flare Carrington longitude
331°
331°
Flare comments
—
—
Radio type II bursts
PSP, STEREO-A, Wind, GB
PSP, STEREO-A, Wind, GB
Decametric type II burst
Start time [UT]
19:15
End time [UT]
19:23
Frequency range
9.6-7 MHz
Metric type II burst
Start time [UT]
19:08
End time [UT]
19:23
Frequency range
20-80 MHz
Imaging available
No
Radio comments
RSTN
RSTN
| L1 (SOHO/Wind) | Parker Solar Probe | STEREO A | Solar Orbiter | |
|---|---|---|---|---|
| Radial distance [au] | 1 | 0.34 | 0.97 | 0.92 |
| Carrington latitude [deg] | -3 | 2 | -7 | 0 |
| Carrington longitude [deg] | 48 | 100 | 356 | 311 |
| e- (~1 MeV) / p (25-40 MeV) ratio |
—
|
—
|
—
|
5.08e+02 |
| p 25 MeV | ||||
| Onset date [UTC] |
—
|
—
|
2021-05-08 | 2021-05-07 |
| Onset time [UTC] |
—
|
—
|
01:30:00 | 20:28:30 |
| Averaging used for onset [min] |
—
|
—
|
20 | 7 |
| Sector used for onset |
—
|
—
|
—
|
sun |
| Peak date [UTC] |
—
|
—
|
2021-05-08 | 2021-05-07 |
| Peak time [UTC] |
—
|
—
|
05:50:00 | 22:35:00 |
| Peak flux [cm-2s-1sr-1MeV-1] | 1.27e-04 | 9.80e-05 | 2.09e-03 | 1.62e-02 |
| Averaging used for peak [min] | 10 |
—
|
20 | 10 |
| Sector used for peak |
—
|
A |
—
|
sun |
| Inferred injection date [UTC] |
—
|
—
|
2021-05-08 | 2021-05-07 |
| Inferred injection time [UTC] |
—
|
—
|
00:52:00 | 19:54:00 |
| Spiral length used for inferred injection time [au] |
—
|
—
|
1.17 | 1.07 |
| Solar wind speed [km/s] |
—
|
—
|
328 | 355 |
| Comments | No event | No event and large data gaps | ||
| e- 100 keV | ||||
| Onset date [UTC] | 2021-05-07 |
—
|
2021-05-07 | 2021-05-07 |
| Onset time [UTC] | <=21:00:00 |
—
|
20:33:00 | 19:41:00 |
| Averaging used for onset [min] | 60 |
—
|
2 | 2 |
| Sector used for onset | 0 |
—
|
asun | north |
| Peak date [UTC] |
—
|
—
|
2021-05-08 | 2021-05-07 |
| Peak time [UTC] |
—
|
—
|
06:45:00 | 21:55:00 |
| Peak flux [cm-2s-1sr-1MeV-1] | 3.18e+01 |
—
|
2.67e+02 | 2.35e+03 |
| Averaging used for peak [min] | 60 |
—
|
10 | 10 |
| Sector used for peak | 0 |
—
|
sun | sun |
| Inferred injection date [UTC] | 2021-05-07 |
—
|
2021-05-07 | 2021-05-07 |
| Inferred injection time [UTC] | 20:41:00 |
—
|
20:15:00 | 19:25:00 |
| Spiral length used for inferred injection time [au] | 1.27 |
—
|
1.19 | 1.07 |
| Solar wind speed [km/s] | 302 |
—
|
316 | 356 |
| Comments | Small event. Onset determined by eye | No event | ||
| e- 1 MeV | ||||
| Onset date [UTC] |
—
|
—
|
2021-05-07 | 2021-05-07 |
| Onset time [UTC] |
—
|
—
|
~19:30:00 | 19:37:30 |
| Averaging used for onset [min] |
—
|
—
|
40 | 5 |
| Sector used for onset |
—
|
—
|
—
|
north |
| Peak date [UTC] |
—
|
—
|
2021-05-08 | 2021-05-07 |
| Peak time [UTC] |
—
|
—
|
03:40:00 | 21:45:00 |
| Peak flux [cm-2s-1sr-1MeV-1] | 1.03e-02 |
—
|
3.99e-02 | 1.71e+00 |
| Averaging used for peak [min] | 10 |
—
|
40 | 10 |
| Sector used for peak |
—
|
—
|
—
|
sun |
| Inferred injection date [UTC] |
—
|
—
|
2021-05-07 | 2021-05-07 |
| Inferred injection time [UTC] |
—
|
—
|
19:20:00 | 19:28:00 |
| Spiral length used for inferred injection time [au] |
—
|
—
|
1.20 | 1.07 |
| Solar wind speed [km/s] |
—
|
—
|
305 | 357 |
| Comments | No event | No event | Small and gradual increase. Onset determined by eye | |