| Observer |
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| Name | Jason W |
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| Experience Level | 4/5 |
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| Remarks | Following a very large solar flare event and the same evening that has given my area (SE Wisconsin) northern lights spectacles. |
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| Location |
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| Address | Shorewood, WI |
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| Latitude | 43° 5' 18.16'' N (43.09°) |
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| Longitude | 87° 53' 25.29'' W (-87.89°) |
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| Elevation | 206.03m |
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| Time and Duration |
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| Local Date & Time | 2021-10-30 20:01 CDT |
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| UT Date & Time | 2021-10-31 01:01 UT |
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| Duration | ≈3.5s |
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| Direction |
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| Moving direction | From up right to down left |
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| Descent Angle | 239° |
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| Moving |
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| Facing azimuth | 244.21° |
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| First azimuth | 275.5° |
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| First elevation | 21° |
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| Last azimuth | 235.95° |
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| Last elevation | 11° |
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| Brightness and color |
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| Stellar Magnitude | -18 |
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| Color | First seen as a bright white flash, ball was bright green and then dark green before fading |
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| Concurrent Sound |
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| Observation | Unknown |
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| Remarks | - |
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| Delayed Sound |
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| Observation | Unknown |
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| Remarks | - |
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| Persistent train |
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| Observation | Unknown |
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| Duration | - |
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| Length | - |
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| Remarks | - |
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| Terminal flash |
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| Observation | Yes |
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| Remarks | Bright white flash like a lightburb being turned on in a dark room, followed by the streaking green ball |
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| Fragmentation |
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| Observation | Unknown |
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| Remarks | - |
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