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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG Location: STEREO A Event Time: 2025-05-10T17:24Z ( STEREO A: IMPACT ) Quality of ICME Signature: -1 (unspecified) Note: Arrival signature first seen beginning at approx. 2025-05-10T17:24Z characterized by a sharp enhancement in magnetic field parameters (B_t: approx. 6nT to 10nT , B_x: approx. -5nT to -10nT , B_y: approx. 4nT to 0nT , B_z: approx. -5nT to 5nT) followed by more turbulent and variable enhancement (B_t increase to approx. 18nT). A smoothing of components can be seen beginning at approx. 2025-05-11T10:11Z, indicating the passage of a flux rope, but the lack of rotation suggests more of a glancing blow. PLASTIC data is currently too sparse to make any determinations about fluctuations in temperature, velocity or density. These features may be associated with the arrival of CME: 2025-05-08T07:48Z, CME: 2025-05-08T10:24Z, and/or CME: 2025-05-08T11:12Z. Version 1 submitted on 2025-05-12T18:36Z by Melissa KaneNo Notification has been sent for this activity yet. |
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