Reports Report 657n (Event 657-2015)
| Observer | |
|---|---|
| Name | Samo S |
| Experience Level | 4/5 |
| Remarks | I didn't see the first part of the path of the fireball, it was north, behind a house and a terrace roof. We noticed the sky going very bright blue-turquoise, changing the brightness rapidly, but constantly being very bright. We were a group and had enough time to exchange a few sentences about what is that (sky being so bright), before I saw the fireball coming from behind the house roof, strongly fragmented. 4 people saw the sky going bright - 2 said sky turned green one said turquoise and one blue; 2 people saw the fireball directly - I said it was white-blue-turquoise - other person said turquoise to green. It's hard to say because of the strong intensity of the light. The conditions were pretty foggy, with Jupiter being just barely visible through the fog, therefore no trail could be observed. The sonic boom was strong, it could be identified as a very strong explosion from very far away. Rumble was strong enough to be heard during a conversation and after 20 seconds on a level of a whispering sound. CS! Samo |
| Location | |
|---|---|
| Address | Meilen, Zurich (CH) |
| Latitude | 47° 16' 8.46'' N (47.269018°) |
| Longitude | 8° 38' 58.03'' E (8.649452°) |
| Elevation | 432.848175m |
| Time and Duration | |
|---|---|
| Local Date & Time | 2015-03-15 20:46 CET |
| UT Date & Time | 2015-03-15 19:46 UT |
| Duration | ≈3.5s |
| Direction | |
|---|---|
| Moving direction | From up left to down right |
| Descent Angle | 175° |
| Moving | |
|---|---|
| Facing azimuth | 179.54° |
| First azimuth | 181.8° |
| First elevation | 90° |
| Last azimuth | 181.07° |
| Last elevation | 60° |
| Brightness and color | |
|---|---|
| Stellar Magnitude | -15 |
| Color | Blue, Light Blue, Light Green |
| Concurrent Sound | |
|---|---|
| Observation | Yes |
| Remarks | About two minutes after the fireball there was a considerably strong sonic boom |
| Delayed Sound | |
|---|---|
| Observation | Yes |
| Remarks | After the sonic boom rumble was heard for at least 20s (noise background: a quiet suburban area) |
| Persistent train | |
|---|---|
| Observation | Unknown |
| Duration | - |
| Length | - |
| Remarks | - |
| Terminal flash | |
|---|---|
| Observation | Unknown |
| Remarks | - |
| Fragmentation | |
|---|---|
| Observation | Yes |
| Remarks | About a dozen of extremely bright fragment with numerous (20+ fainter fragments) |