Reports Report 206al (Event 206-2018)
| Observer | |
|---|---|
| Name | Mike B |
| Experience Level | 4/5 |
| Remarks | Heading was from almost directly overhead, straight to the horizon, first time I've ever seen one like this. I initially thought it was a plane, so it took me a few seconds to figure out what I was looking at. I was also driving, and I don't remember my exact location on the expressway, it shifts from east by southeast to directly southeast, so my angles may be a bit off. I believe though that I was heading east by southeast, and I know it was approximately 30 degrees south of that, as I indicated using your tools. Hope I was close. |
| Location | |
|---|---|
| Address | Rosemont, IL |
| Latitude | 41° 59' 49.08'' N (41.996966°) |
| Longitude | 87° 52' 34.18'' W (-87.876162°) |
| Elevation | 201.113m |
| Time and Duration | |
|---|---|
| Local Date & Time | 2018-01-17 22:48 CST |
| UT Date & Time | 2018-01-18 04:48 UT |
| Duration | ≈7.5s |
| Direction | |
|---|---|
| Moving direction | From up to down |
| Descent Angle | 180° |
| Moving | |
|---|---|
| Facing azimuth | 140.54° |
| First azimuth | 169.39° |
| First elevation | 35° |
| Last azimuth | 169.69° |
| Last elevation | 16° |
| Brightness and color | |
|---|---|
| Stellar Magnitude | -11 |
| Color | White |
| Concurrent Sound | |
|---|---|
| Observation | Unknown |
| Remarks | - |
| Delayed Sound | |
|---|---|
| Observation | Unknown |
| Remarks | - |
| Persistent train | |
|---|---|
| Observation | No |
| Duration | - |
| Length | - |
| Remarks | - |
| Terminal flash | |
|---|---|
| Observation | Yes |
| Remarks | Hard to say, I was taken by surprise and thought initially that this was an aircraft. I was also driving at the time. It was tremendously brighter at the end, easily ten times greater than when I first observed it. |
| Fragmentation | |
|---|---|
| Observation | Yes |
| Remarks | I believe there was some minor fragmentation, but I couldn't keep an eye on it entirely because I was driving. It was slow moving, not terribly long in length in my view, and the fragments were more compacted in a shorter trail than others I've seen. |