Table 1
Event properties.
| Properties/spacecraft | STA | STB |
|
|
||
| Spike onset, UT | 0533 | 0532 |
| – peak intensity, particles/(cm2 s sr MeV) | 3640 | 4400 |
| – time to maximum, min | 8 | 11 |
| – spectral index (45–295 keV), γ | −3.73 ± 0.09 | −3.96 ± 0.07 |
| – energy range, keV | ≤ 295 | ≤ 295 |
| Type III bursts onset (SWAVES), UT | 0509 | 0509 |
| Local Langmuir waves | yes | yes |
| Onset delaya, spike vs. type III onset, min | 10.6 | 8.4 |
| Mag. footpoints separation to loops/jet/flare, (°) | 0/4/14 | 40/42/48 |
| Flare Carrington longitude; latitude, (°) | 252; −8 | 252; −8 |
| Solar wind speed Vsw, km s-1 | 360 | 338 |
| CME: speed, km s-1; angular widthb, (°) | 781; 56 | 735; 76 |
| Type II burst (SWAVES/ground-based) | no | no |
| EIT–wave | no | no |
Notes. All spike parameters were derived for electrons in the energy range 55–65 keV.
In solar release time (SRT): taking into account the measured solar wind speed Vsw, the travel time of radio emission and electrons from the Sun to the s/c, and the s/c distance from the Sun (0.96 and 1.02 AU for STA and STB, respectively).
CME parameters taken from CACTUS (http://sidc.oma.be/cactus/; Robbrecht & Berghmans 2004).
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