My indoor cameras captured windows turning blue through the shades which were lowered this was very bright. I was sitting outside facing East and experienced the brightness as is it flew directly over me and west facing camera picked up the best action.
Photo
Video
Location
Address
Broomfield, CO
Latitude
39° 56' 54.64'' N (39.948512°)
Longitude
105° 2' 8.4'' W (-105.035667°)
Elevation
1607.996338m
Time and Duration
Local Date & Time
2021-10-03 04:31 MDT
UT Date & Time
2021-10-03 10:31 UT
Duration
≈3.5s
Direction
Moving direction
From up right to down left
Descent Angle
214°
Moving
Facing azimuth
270.67°
First azimuth
66.04°
First elevation
90°
Last azimuth
232.85°
Last elevation
40°
Brightness and color
Stellar Magnitude
-16
Color
Dark Blue, Blue
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Yes
Remarks
Sonic boom about 3 1/2 to 4 minutes following the sighting. Was not loud best described a low rumble/distant thunder.
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
Very bright flash creating shadows like the sun. Turned night into day time. Leading up to and following terminal flash a series of rapid pulsing, dimmer flashes happened.