Reports Report 500b (Event 500-2021)

Observer
Name Gordon B
Experience Level 3/5
Remarks I'm an amateur photographer that shoots primarily the Milky Way over large landscapes. I'm also a retired systems software engineer, who helped design a little telescope down in Texas (HET) 25 years ago.
Location
Address Paradise Valley, AZ
Latitude 33° 33' 43.49'' N (33.56208°)
Longitude 111° 57' 28.96'' W (-111.958045°)
Elevation 409.09436m
Time and Duration
Local Date & Time 2021-01-22 21:46 MST
UT Date & Time 2021-01-23 04:46 UT
Duration ≈3.5s
Direction
Moving direction From up right to down left
Descent Angle 240°
Moving
Facing azimuth 270°
First azimuth -
First elevation 90°
Last azimuth 255°
Last elevation 20°
Brightness and color
Stellar Magnitude -6
Color Started out yellow, then orange and ended in green with chunks flying off of it in several directions, before it went dark. It appeared to NOT hit the earth.
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation Unknown
Duration -
Length -
Remarks -
Terminal flash
Observation No
Remarks -
Fragmentation
Observation Yes
Remarks The object appeared overhead, streaking across the sky in front of me, within my primary field of view. As it flew over, the streak changed colors and became thicker, turning green. Near the end of its path, the object fragmented a bit with at least 3 chunks flying off in various directions, however the main body continued for another second running green, then disappeared when about 20 degrees above the horizon. Note - a bit difficult to tell, since there are large hills to the west that obscure the actual horizon.