Reports Report 638cv (Event 638-2015)

This report has been linked to the following event: Event 638-2015
Observer
NameKatie B
Experience Level3/5
RemarksAt first I thought it was a UFO. And then I was surprised by how quickly it seemed to be moving. I ultimately decided that it was a light on the front of a helicopter. I just couldn't imagine where it was going to land.
Location
AddressBoulder, CO
Latitude39° 58' 33.34'' N (39.98°)
Longitude 105° 12' 51.88'' W (-105.21°)
Elevation1647.64m
Time and Duration
Local Date & Time2015-03-11 05:58 MDT
UT Date & Time2015-03-11 11:58 UT
Duration≈20s
Direction
Moving directionFrom up right to down left
Descent Angle265°
Moving
Facing azimuth305°
First azimuth340°
First elevation53°
Last azimuth280°
Last elevation45°
Brightness and color
Stellar Magnitude-22
ColorLight Yellow
Concurrent Sound
ObservationNo
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationUnknown
Duration-
Length-
Remarks-
Terminal flash
ObservationNo
Remarks-
Fragmentation
ObservationNo
Remarks-