Reports Report 490i (Event 490-2011)
| Observer | |
|---|---|
| Name | Maris |
| Experience Level | 3/5 |
| Remarks | - |
| Location | |
|---|---|
| Address | Chicago, IL |
| Latitude | 41° 52' 40.62'' N (41.877949°) |
| Longitude | 87° 47' 43.43'' W (-87.795396°) |
| Elevation | - |
| Time and Duration | |
|---|---|
| Local Date & Time | 2011-05-12 23:30 CDT |
| UT Date & Time | 2011-05-13 04:30 UT |
| Duration | ≈7.5s |
| Direction | |
|---|---|
| Moving direction | From up right to down left |
| Descent Angle | 225° |
| Moving | |
|---|---|
| Facing azimuth | 14.01233° |
| First azimuth | 12.29536° |
| First elevation | 80° |
| Last azimuth | 28.8147° |
| Last elevation | 16° |
| Brightness and color | |
|---|---|
| Stellar Magnitude | -13 |
| Color | Bright red-orange |
| Concurrent Sound | |
|---|---|
| Observation | No |
| Remarks | - |
| Delayed Sound | |
|---|---|
| Observation | No |
| Remarks | It was relatively calm and silent in the vicinity of my location, no sounds observed. |
| Persistent train | |
|---|---|
| Observation | Yes |
| Duration | 6.5s |
| Length | 10° |
| Remarks | Glowing train, red-orange similar to the fireball, though duller in magnitude. Thicker following fireball, thinned off to tail of train. |
| Terminal flash | |
|---|---|
| Observation | No |
| Remarks | Fireball disappeared from view beyond houses on the horizon, appeared to be growing steadily brighter as it approached horizon from apex of the sky. No visible flash or fragmentation during its travel. |
| Fragmentation | |
|---|---|
| Observation | No |
| Remarks | - |