It was NOT the the group of 17, C-17 cargo jets that were spotted in the Cherry Creek area of Denver as the news has reported. Springfield, Colorado is approximately 254 miles southeast from Denver.
Location
Address
Springfield, CO
Latitude
37° 24' 10.42'' N (37.402894°)
Longitude
102° 33' 55.11'' W (-102.565309°)
Elevation
1315.632m
Time and Duration
Local Date & Time
2017-12-09 21:12 MST
UT Date & Time
2017-12-10 04:12 UT
Duration
≈3.5s
Direction
Moving direction
From down left to up right
Descent Angle
68°
Moving
Facing azimuth
90°
First azimuth
90°
First elevation
45°
Last azimuth
90°
Last elevation
45°
Brightness and color
Stellar Magnitude
-22
Color
Dark Blue, Blue, Light Blue, White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
Huge, bright blue flash of light from the East, it lit up the entire sky.
