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Table 1
Timing of observations and their interpretation.
| Time (UT) | Observation | Interpretation |
|
|
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| December 5–17 | AR 10930 is on the disk | |
| December 5–17 | AR filament observed by BBSO | |
| December 13 02:22-02:26 | MHD shock wave in XRT observations | Indication of a transverse CS |
| December 13 02:24-02:28 | Plasmoid ejection in XRT observations | Indication of a vertical CS |
| December 13 02:14-02:40-02:57 | X3.4 class flare at S06W23 | Reconnection at the vertical CS |
| December 13 02:54-04:42 | CME with a persistent bright structure seen | Indication of the TCS in the |
| by LASCO (v = 1774 km s-1, a = −61 m s-2) | leading edge of the CME | |
| December 14 21:44–21:54 | STEREO A.B magnetic field measurements | Transverse CS in front of the MC |
| imply large |J| at 1 AU | ||
| December 14 23:00 – December 15 15 19:40 | MC detected by STEREO A, B at 1 AU | |
| December 14 20:55-21:30 | dpa increased and Bzb rotated in ACE data | Transverse CS in front of the MC |
| December 14 22:40 – December 16 16:20 | ICME detected by ACE at 1 AU | |
| December 18 03:00 – December 19 04:00 | ICME detected by Ulysess at 2.73 AU | |
| December 15 01:00 | Geomagnetic storm with Dst = −146 nT | |
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