DOW-UAP-D157, Air Intelligence Information Report, Italy, 1952
This document is an Air Intelligence Information Report (AIIR), a standardized U.S. Air Force reporting form used to record raw information of potential intelligence value for later analysis. The form served as a primary vehicle for U.S. Air Force field intelligence collection throughout the early Cold War, until defense-wide reporting standards were established in the early 1960s. This AIIR records an August 27, 1952, incident near Sassari, Italy, that was reported in the local Italian press the following day. The U.S. Air Attaché in Rome relayed the translated newspaper account to the Air Force in November 1953 and later interviewed the individual who made the initial report, Professor Giovanni Battista Sias. Sias described observing a brilliantly luminous sphere, slightly larger in apparent size than the full moon, with a green-blue color, silvery brightness, and metallic streaking on its right side. He reported that it moved from east to west at very high speed, intermittently disappearing and reappearing while leaving behind a narrow luminous trail or ribbon. The preparing officer characterized Professor Sias as intelligent, pleasant, and eager to share his account. All descriptive and estimative language contained in this report reflects the reporter’s subjective interpretation at the time of the event. Such characterizations should not be interpreted as a conclusive indication of the presence or absence of any intrinsic object features or performance characteristics.
The summary above is sourced from the released file metadata as published to war.gov. The analysis sections below are original to this tracker.
Text of the document
Machine-extracted from the PDF war.gov published (its text layer or OCR), so expect errors, especially in names, numbers and handwriting; the PDF is the authoritative copy. Lines that did not extract as readable text are left out. Showing about 987 words from pages 1, 2, 3 of 5.
PAGE 1
AIR INTELLIGENCE INFORMATION REPORT
(UNCL) Report of Unusual Aerial Pheonmenan
AREA REPORTED ON f'RON (Ag PAGE 2 AF FORM 112-P..A RT II
AIR INTELLIGENCE INFORMATION REPORT
FROM (Agt11cv) REPORT NO.
Air Attache, Rome, Italy 2 5
PAGE OF PAGES
REPORl' AND ILLUST TIO OF A F.LYI?il SPH
Ooservation by Pro!. o.B. SIAS - Via Armando Diaz 22, Sassari
APP ITION OF A FLnNG SPHERE
'On the 28th of A,u st 1952 the fellewirg article of mine was published in
Sassari in the local •Corriere dell'Isola" newSP-aper1
"Yesterday ev ning, 27th of August, at 2145 hours, I was walking - as usual -
along the court-yard f Sassari Brigade, below th wind ws of the war orphans dorm:1.
tory, saying the ros • It was exactly the time :when the.t 1."Wllpet o! Gonzaga. barrack
vas playing the lights out signal. I watched now am then the sky" covered with stars,
heavy, moonless, till torrid for the temperature which in tmse daya, aa anyone wuld
remember, often attained 40 degrees, with a sky which .remained clean and cloudless for
three 1t10nths.- Suddenly ll\1 attention was attracted by: a transparent small cleud, c
from the st, isolated in the lliddle of the sq, . the ,remaining ky was serene. ?tr
eyes were .fixed to that point, fascinated by the view, ,men sudde~ a sphe ot
astonishing brightness aDd luminosity se d to depart from the Milky Way. I had th
~ression that it as• very close to the earth: 1t was slightly larger than the .full
moon, of green-blue color, silver bright like th mother-of-pearl, with m,tal streaks
in the right side; it pr ceeded. at a dizzy speed along East-West diredtion, appearing
suddenly as if it c cnit of a thick shadow. It cans out and in a s conc3 disappeared
leaVing behind a liile r luminous ribbon, haVi.ng a thickness of on1t-seventh of the
sphere; after a econd, the entire sphere appeared again; then again, it disappeared
and the line showed and again the sphere returned, always idem.ical. Finally, it
disappeared toward the horizon. The apparition lasted in total three to five seconds.
"M;,' first idea vaa that such a phenomenon was due to a.n aerolita. Everyam
knowa the color and brightness of teoric stonas, 11hile it was evident that the
lundnou.si'ty of the sphere originated fro tm sun, like the moon's•
!'In regard to motion, I . refiected that such an objec~ suppose it was a human
ere tion, could not hav such a dizzy ctual speed to excel the velocity of any- human
invention, even if carried to or 60 kilometers aJ.titud • On the supposition that
the sphere was colling fro a tral spaces, frc:a oh higher altitudes, its otion could
be either partially or emtire}J" apparent, th t is equal to e revolution speed of the
earth, Viz. thirty kilometer per seccmd.,
"Where the lumino ity was cone rned, I thcnght that it could be traced to the
locatic>n of the sph~re at hundreds or thou.sams kilometers above the earth while it
got out o:f ths cone of ahadov of the earth and proc ded Westward, beii:g ilJ11rni11ated
the sun wh~eh had set two hours and a half earlier. The location was the follOldng,
approx. LS between the Zenith and the horizon lin3,Southward; direction E1st-West
beginning .from the Milky ay.
PTb,e doubt that mine may be a mere optical illusion is dissipated by- the
testimony of tvo other personsa an orphan, Brau, who had not yet gom1- to bed, sav
the lum1.not1s sphere through the window of the dorm.torr; another testimony was offered
by Mr. Piccolo, a guardi:an or Valmascheri concern placed approx. 3 kil eters in air
line fro Saasart, who observed the phenomenon at the sam3 time: rea.l.ity not
illusion, then.
MOTE: THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED SfATES WITHIN THE MEANING OF THE ESPIQNAGF.ACT, 50 U. S. C.-
31 AN'D 32, AS AMENDED. ITS TRANSM ISSION OR THE REVELATION OF LTS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PEflSON IS PROHIBITED BY LAW.
IT MAY NOT BE REPROOlJCEO IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF
INTELLIGENCE. USAF. PAGE 3 AF FOlfM 112-PART II
AIR INTELLIGENCE INFORMATION REPORT
FROM (Agency) REF'ORT NO.
PAGE OF PAGES
ALTITUDE AND DIM™SIONS OF THE SPHERE
"The observation of the sphere, the peculiar circumstances of its apparition
and the logical deductions, inspired me with a pressing desire, rather a stimulating
Where this file fits in the PURSUE archive
This file is one of DoD's 282 files in the Trump PURSUE disclosure. Within the DoD agency block it ranks #163 of 282 by Anomalousness Index. Across the entire 478-file archive it ranks #287 of 478.
That places it in the lower-scoring band of the archive (287 of 478 by score), typical of investigative-record style files where the report is paper-based rather than instrumented.
Anomalousness Index: 56/100
Evidentiary weight that this encounter remains unexplained after conventional analysis. Not a probability of extraterrestrial origin - that number is not honestly computable from the released files and this tracker refuses to publish it.
🤖 AI-ASSISTED SCORING · methodology
The six rubric components break down for this file as follows. Each component has a weighted contribution to the final score; the per-component explanation below describes what this file's particular value on that component means in the rubric's framework.
Reported by a witness with no instrumented record. The lowest tier in the rubric's sensor axis. Eyewitness perception in field conditions, even when the witness is highly credentialed, scores below capture by any instrumented modality. This report reached the federal record through the Department of War.
Trained U.S. military personnel reporting from an operational mission context. A high witness-credibility tier, ranked in the rubric below astronaut, trained-aviator, and federal-agent testimony. This is the witness profile shared by the entire AARO-submitted infrared-capture cluster that anchors the 66-point score band.
Single-witness or single-instrument capture. This is the corroboration tier for the overwhelming majority of the PURSUE archive on the released metadata - the rubric records the honest limit of the underlying record rather than inferring multi-witness corroboration that the released summaries do not establish. A small number of files with an independent second witness or instrument score on the multi-witness/multi-instrument tier above this one.
No kinematic measurements - speed, acceleration, vector - are published in the released file with sufficient precision to score on the kinematic axis. The rubric does not infer kinematic anomaly from narrative observer estimates. Every file in the archive carries this value, which is itself an observation about the disclosure: kinematic-grade telemetry was not part of what was released.
A conventional candidate explanation has been considered but is not dispositive. Every file in the archive scores this way - reflecting that the underlying release metadata systematically caveats strong determinations in either direction. The released summaries warn against reading them as conclusive analytical judgments, and the rubric respects that.
Released as open after formal review by the originating agency. The file passed through a review process and was published in that posture - a stronger disposition signal than 'unresolved with no review,' because review has occurred and the open status is the agency's published conclusion.
Bottom line on the score: the Anomalousness Index of 56/100 reflects evidentiary weight that this specific file's encounter remains structurally unexplained by the rubric's six axes - it is not a claim that the underlying event involved anything non-conventional, and it is not comparable across rubrics that use different weights. For the full per-axis weights and the rubric JSON, see /methodology.
Related files in DoD
Other PURSUE files in the same category, ranked by Anomalousness Index.
DOW-UAP-PR024, Unresolved UAP Report, Middle East, 2023
DOW-UAP-PR072, "ADMINISTRATIVE REVISION: IIR 1777 J0032 22 Kazakhstan - UAP in the vicinit…
DOW-UAP-PR106, Unresolved UAP Report, Eastern United States, 2020
DOW-UAP-PR108, Unresolved UAP Report, Western United States, 2020
DOW-UAP-PR109, Unresolved UAP Report, Eastern United States, 2015
DOW-UAP-PR110, Unresolved UAP Report, Eastern United States, 2020
Verification
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