Reports Report 1774eu (Event 1774-2025)
| Observer | |
|---|---|
| Name | Christiaan H |
| Experience Level | 4/5 |
| Remarks | I was looking at Ursa Major at the time of first brightening, by the time I had turned to see it entry had been going on for a little over half a second. The fragmentation occurred a little over a quarter second after I began direct observation. The color of both fragments was a shade lighter than the orange of Mars, maybe a maximum value change of 20/256 on the RGB pixel scale? There was a slight tail during reentry, no more than two degrees long, but nothing persisting after disintegration. |
| Location | |
|---|---|
| Address | Vineyard, UT |
| Latitude | 40° 17' 19.35'' N (40.288709°) |
| Longitude | 111° 44' 22.01'' W (-111.739448°) |
| Elevation | 1382.629517m |
| Time and Duration | |
|---|---|
| Local Date & Time | 2025-03-24 21:46 MDT |
| UT Date & Time | 2025-03-25 03:46 UT |
| Duration | ≈1.5s |
| Direction | |
|---|---|
| Moving direction | From up right to down left |
| Descent Angle | 188° |
| Moving | |
|---|---|
| Facing azimuth | 310° |
| First azimuth | 311° |
| First elevation | 24° |
| Last azimuth | 306° |
| Last elevation | 9° |
| Brightness and color | |
|---|---|
| Stellar Magnitude | -4 |
| Color | Orange |
| Concurrent Sound | |
|---|---|
| Observation | No |
| Remarks | - |
| Delayed Sound | |
|---|---|
| Observation | No |
| Remarks | - |
| Persistent train | |
|---|---|
| Observation | No |
| Duration | - |
| Length | - |
| Remarks | - |
| Terminal flash | |
|---|---|
| Observation | Yes |
| Remarks | Terminal flash briefly increased brightness to -5.5, followed by a quarter second long fading down to magnitude 4 before I lost it in light pollution. No tail was left behind by either fragment despite attempts at averted vision spotting. My right eyes was dark adapted at time of spotting. |
| Fragmentation | |
|---|---|
| Observation | Yes |
| Remarks | Main body split into two fragments halfway through entry. Leading fragment was far brighter than the tailing fragment, and maintained a magnitude of roughly -3.5 through sputtering brightness peaks and dips over the last second of entry. The tailing fragment was around magnitude -1.5 and displayed similar sputtering behavior, but with a lesser extent of brightness variation. Both fragments were identically colored and followed the same path, and brightness curve through the atmosphere. |