| Observer |
|
Name |
Jim L |
|
Experience Level |
3/5
|
|
Remarks |
- |
| Location |
|
Address |
Helena, MT |
|
Latitude |
46° 36' 2.03'' N (46.600565°)
|
|
Longitude |
112° 2' 42.31'' W (-112.045086°)
|
|
Elevation |
1223.617432m |
| Time and Duration |
|
Local Date & Time |
2019-09-12 22:05 MDT
|
|
UT Date & Time |
2019-09-13 04:05 UT
|
|
Duration |
≈3.5s
|
| Direction |
|
Moving direction |
From up left to down right |
|
Descent Angle |
111° |
| Moving |
|
Facing azimuth |
106.43° |
|
First azimuth |
57.86° |
|
First elevation |
51° |
|
Last azimuth |
146.94° |
|
Last elevation |
34° |
| Brightness and color |
|
Stellar Magnitude |
-13 |
|
Color |
Dark Purple, Purple |
| Concurrent Sound |
|
Observation |
No |
|
Remarks |
- |
| Delayed Sound |
|
Observation |
No |
|
Remarks |
- |
| Persistent train |
|
Observation |
Yes |
|
Duration |
15s |
|
Length |
10° |
|
Remarks |
It sparked, changed colors and left a smoke trail |
| Terminal flash |
|
Observation |
Unknown |
|
Remarks |
- |
| Fragmentation |
|
Observation |
No |
|
Remarks |
- |
