Four of us saw this; one of us is an astronomy student at the University of Arizona and thinks the meteor was iron. There is also video of this event here (unfortunately obscured by clouds more than it was for us in Los Alamos): https://www.krqe.com/news/new-mexico/video-flash-of-light-over-northern-new-mexico-sky/
Location
Address
Los Alamos, NM
Latitude
35° 53' 27.06'' N (35.890849°)
Longitude
106° 17' 2.49'' W (-106.284024°)
Elevation
2212.567627m
Time and Duration
Local Date & Time
2020-07-28 20:54 MDT
UT Date & Time
2020-07-29 02:54 UT
Duration
≈7.5s
Direction
Moving direction
From left to right
Descent Angle
90°
Moving
Facing azimuth
1.93°
First azimuth
289.82°
First elevation
90°
Last azimuth
97.59°
Last elevation
90°
Brightness and color
Stellar Magnitude
-22
Color
White with green edges
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Unknown
Remarks
-
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Unknown
Remarks
-
Fragmentation
Observation
Yes
Remarks
It broke apart into at least two pieces at the end; I believe we saw a terminal flash but I can't quite remember
