In July 1947 three different groups of Air Force personnel at Muroc reported seeing unidentified spherical objects with no wings manoeuvring overhead. Each group was separate from the others. The sighting remains unidentified. That is the whole of the telling the archive holds.
What is on the record
One telling, one channel, one video. The telling records its witnesses as three groups of Air Force personnel, with no names, no ranks, no time of day and no description of the objects beyond their shape and the absence of wings. Nothing here says what they did other than manoeuvre, how long they were visible, or how far apart the three groups stood. Nor does the entry record who collected the reports at the time or how the three came to be treated as one sighting. The separation of the groups is the single detail doing any evidential work, and the archive states it without showing it.
No document is displayed in this file. An earlier version of this entry attached a Project Sign progress report and a Project Blue Book case file to the case, but both were era-level paperwork rather than anything naming Muroc: one a general 1948 survey, the other an index entry with a blank title. The archive no longer treats either as corroboration.
The names now in the count come from a third era-level paper: an Air Force analysis of flying-object reports in the United States, carried in the Pentagon's UAP record releases. Its Muroc entry has multiple military witnesses ruling out balloons, aircraft and optical illusions. Test pilot Joseph J. Ise reports a yellowish-white object at 10,000 to 15,000 feet making a forward whirling movement, and Col Signa Gilkey is named among the witnesses. The witness list is not clean. Two further entries from the same file, rendered "Jesuits/Rocca" and Kate Johne Marie Santos, do not appear in its Muroc summary.
Why it sits where it does
Muroc grades L3, the tier for independent named witnesses, on the names the Air Force analysis adds. That lifts it on sourcing alone: the analysis is survey paperwork rather than a record of this event, and two of the five claimants do not obviously belong. The telling's three groups still arrive as a single retelling rather than as three separate statements. The tier measures sourcing and never truth. What they saw is not resolved here.