Table 1.
Observational details of the eruption of CME1 and CME2.
| CME1 | CME2 | |
|---|---|---|
| Active region position | N12E29 | N15E02 |
| Flare class | M4.6 | X1.6 |
| Flare time (start - peak - end) | September 8, 23:12 UT – September 9, 00:28 UT – September 9, 01:30 UT | September 10, 17:21 UT – September 10, 17:45 UT – September 10, 17:45 UT |
| Apparent CME Speed [km s−1] | 920 | 1267 |
Notes. Flare details are as reported on Solar Monitor (https://www.solarmonitor.org/). The position of the active region AR 12158 according to the NOAA catalogue is in heliographic coordinates. CME speeds are taken from the CDAW catalogue as computed by an automatic linear fit.
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