| Observer | |
|---|---|
| Name | Allen L |
| Experience Level | 2/5 |
| Remarks | The object had a long tail like an airplane contrail, but instead of a plane I observed a bright blue-green ball. It disappeared behind a low hill before I could observe an impact or breakup. I was driving at the time, heading north on the freeway. |
| Location | |
|---|---|
| Address | Portola Valley, CA |
| Latitude | 37° 23' 34.86'' N (37.393016°) |
| Longitude | 122° 10' 28.95'' W (-122.174709°) |
| Elevation | 99.79554m |
| Time and Duration | |
|---|---|
| Local Date & Time | 2015-01-31 12:47 PST |
| UT Date & Time | 2015-01-31 20:47 UT |
| Duration | ? |
| Direction | |
|---|---|
| Moving direction | From up left to down right |
| Descent Angle | 106° |
| Moving | |
|---|---|
| Facing azimuth | 285.36° |
| First azimuth | 286.14° |
| First elevation | 33° |
| Last azimuth | 293.09° |
| Last elevation | 11° |
| Brightness and color | |
|---|---|
| Stellar Magnitude | -22 |
| Color | Light Blue, Light Green |
| Concurrent Sound | |
|---|---|
| Observation | No |
| Remarks | - |
| Delayed Sound | |
|---|---|
| Observation | No |
| Remarks | - |
| Persistent train | |
|---|---|
| Observation | Unknown |
| Duration | - |
| Length | - |
| Remarks | - |
| Terminal flash | |
|---|---|
| Observation | No |
| Remarks | - |
| Fragmentation | |
|---|---|
| Observation | No |
| Remarks | - |