Reports Report 3987aq (Event 3987-2022)
| Observer | |
|---|---|
| Name | Eric B |
| Experience Level | 1/5 |
| Remarks | I’m an aerospace engineer, so have good understanding of the physics. My guess would be that this was somewhere over Yellowstone Park, but distance is so hard to estimate. The explosion clouds were very high and remained sun-lit for a long time after it’d gotten dark at our location. There were 2 other witnesses at this location. |
| Photo |
|---|
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| Location | |
|---|---|
| Address | Pinedale, WY |
| Latitude | 43° 1' 50.19'' N (43.030607°) |
| Longitude | 110° 22' 31.19'' W (-110.375331°) |
| Elevation | 2409.068115m |
| Time and Duration | |
|---|---|
| Local Date & Time | 2022-07-12 22:09 MDT |
| UT Date & Time | 2022-07-13 04:09 UT |
| Duration | ≈20s |
| Direction | |
|---|---|
| Moving direction | From down left to up right |
| Descent Angle | 85° |
| Moving | |
|---|---|
| Facing azimuth | 331.1° |
| First azimuth | 300.54° |
| First elevation | 10° |
| Last azimuth | 8.89° |
| Last elevation | 8° |
| Brightness and color | |
|---|---|
| Stellar Magnitude | -8 |
| Color | White |
| Concurrent Sound | |
|---|---|
| Observation | No |
| Remarks | - |
| Delayed Sound | |
|---|---|
| Observation | No |
| Remarks | - |
| Persistent train | |
|---|---|
| Observation | Yes |
| Duration | 99.99s |
| Length | 90° |
| Remarks | The photo provided is after the event and shows the debris/smoke/vapor trail. The 2 white clouds show where it got super bright. Trail super visible to left of clouds, but gets harder to see to the right of the clouds which stayed lit long after sunset and persisted until it was too dark to see them. Darker areas to the right of the clouds show where the trails were, but resolution is diluted. This is where we saw the object falling apart, and other trails from broken off debris falling faster to earth than the primary object. |
| Terminal flash | |
|---|---|
| Observation | Yes |
| Remarks | 2 bright flashes where the clouds appear in the debris trail. |
| Fragmentation | |
|---|---|
| Observation | Yes |
| Remarks | At least 8 fragments visible to us - looked like possible gravitational spagettification of a loosely packed asteroid, but could have just been fragments due to friction of a more solid body. Post terminal flashes, we saw more fragments fall below primary object, taking a slower, more direct parabolic path to Earth. They were illuminated, but less so than the primary object. Had very little “witness” time before the flashes, but also saw fragmentation there. |