Reports Report 5450br (Event 5450-2017)

This report has been linked to the following event: Event 5450-2017
Observer
NameGary P
Experience Level1/5
RemarksReally interesting experience! I’d love to hear if others reported it. I was driving at it on the highway at the moment and only wish I’d been outside of my vehicle to experience it.
Location
AddressHopkinton, MA
Latitude42° 13' 44.53'' N (42.23°)
Longitude 71° 32' 59.31'' W (-71.55°)
Elevation109.9m
Time and Duration
Local Date & Time2017-12-26 17:30 EST
UT Date & Time2017-12-26 22:30 UT
Duration≈3.5s
Direction
Moving directionFrom down right to up left
Descent Angle337°
Moving
Facing azimuth350.15°
First azimuth353.96°
First elevation30°
Last azimuth10.82°
Last elevation20°
Brightness and color
Stellar Magnitude-9
ColorOrange, yellow, light yellow
Concurrent Sound
ObservationNo
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationNo
Duration-
Length-
Remarks-
Terminal flash
ObservationYes
RemarksThe light was shrinking until it ballooned to probably 5x its previous size.
Fragmentation
ObservationYes
RemarksVery slight fragmentation, I believe, at the terminal flash.