This report is not an original BB
unknown, but has been included in the Comprehensive Catalog of Project
Blue Book Unknowns by Brad Sparks.
Dec. 20, 1948. W of Los Alamos, New
Mexico (35.89° N,
106.31° W). AESS observation post sighted green fireball with a
triangulated 7-8-mile W to E flight path calculated by LaPaz based on
another independent observation at a different site. (FOIA)