Fireball report

Reports Report 3238c (Event 3238-2017)

Observer
Name	Kristen M
Experience Level	3/5
Remarks	Throughout my life I have spent quite a lot of time outside at night as well as stargazing and this is the first time I've observed such phenomena. While I'm sure such information is taken into account, I do want to note that I'm quite sure that my memory of an event such as this, so unexpected and relatively short-lived, is not an entirely reliable indicator, especially or specifically in regard to factors including observation angle, angle of trajectory, distance from horizon etc. What struck me most and remains more clear in my memory is the intensity, brightness, duration, relatively atypical color, and fragmentation of the apparent meteor.

Location
Address	Concord, CA
Latitude	37° 59' 55.17'' N (37.998657°)
Longitude	122° 2' 54.82'' W (-122.048562°)
Elevation	5.758m

Time and Duration
Local Date & Time	2017-09-15 21:00 PDT
UT Date & Time	2017-09-16 04:00 UT
Duration	≈3.5s

Direction
Moving direction	From up right to down left
Descent Angle	256°

Moving
Facing azimuth	155°
First azimuth	175°
First elevation	48°
Last azimuth	112°
Last elevation	41°

Brightness and color
Stellar Magnitude	-19
Color	Orange, Yellow, Light Yellow (maybe like a sodium street light COLOR, but BRIGHTER).

Concurrent Sound
Observation	No
Remarks	-

Delayed Sound
Observation	No
Remarks	-

Persistent train
Observation	Unknown
Duration	-
Length	-
Remarks	-

Terminal flash
Observation	Unknown
Remarks	-

Fragmentation
Observation	Yes
Remarks	While there may have been additional, "smaller" fragmentation, the apparent fireball separated into 2 primary and clearly distinct fragments. The fragmentation occurred approximately 2/3rds of the way through the meteor's trajectory; the fragment with the "head" attached being approximately 1/3rd of the meteor's total length and the second fragment being approximately 2/3rds of the meteor's total length.

Fragmentation

Observation

Yes

Remarks

While there may have been additional, "smaller" fragmentation, the apparent fireball separated into 2 primary and clearly distinct fragments. The fragmentation occurred approximately 2/3rds of the way through the meteor's trajectory; the fragment with the "head" attached being approximately 1/3rd of the meteor's total length and the second fragment being approximately 2/3rds of the meteor's total length.