The Scientific Investigation of Unidentified Aerial Phenomena (UAP) Using Multimodal Ground-Based Observatories

Brief

Watters, Loeb, and 35 co-authors present the full instrumentation rationale and science traceability matrix (STM) for the Galileo Project's multimodal UAP observatory, published in the Journal of Astronomical Instrumentation in 2023. The sensor stack spans wide-field and narrow-field cameras in multiple spectral bands (for triangulation, morphology, spectra, polarimetry, and photometry), passive multistatic antenna arrays for radar-derived kinematics, radio spectrum analyzers, infrasonic-to-ultrasonic microphones, and environmental sensors measuring temperature, pressure, humidity, wind, quasistatic electric and magnetic fields, and energetic particles. The explicit null hypothesis is that no genuine atmospheric anomaly exists; outlier events are to be flagged in a high-dimensional census parameter space via data fusion and semi-supervised classification. The STM formally connects sought-after physical parameters to observables and projected instrument performance, a methodology borrowed from space mission design.

Metadata

Category

Phenomenon

Venue

Journal of Astronomical Instrumentation

Type

Peer-reviewed

Year

2023

Authors

Wesley Andrés Watters, Abraham Loeb, Frank Laukien, Richard Cloete, Alex Delacroix, Sergei Dobroshinsky, Bjorn Foppa, Daniel Hoek, Eric Keto, Sarah Little, Jacob Mernick, Eric Masson, Mike Prior, Forrest Schultz, Matthew Szenher, Foteini Vervelidou, Abigail White

DOI

10.1142/S2251171723400068

Access

Open access

Length

8.3 M

Programs

Galileo Project, Project Blue Book, AATIP, AOIMSG, AARO, Project Condign, GEIPAN, Project Twinkle, Project Magnet

Instruments

wide-field multispectral cameras, narrow-field imaging/spectro/polarimetric cameras, passive multistatic radar antenna arrays, radio spectrum analyzers, infrasonic-to-ultrasonic microphones, quasistatic E/B field sensors, energetic particle counters, environmental sensors (temperature, pressure, humidity, wind)

Data sources

ODNI 2021 UAP Preliminary Assessment, Project Blue Book records, Condon Report (1969), Hessdalen Valley field records (1984–present), Yakima Valley field records (1972–2007), Piedmont Missouri field records (1973–1981)

Tags

UAP-physics, anomaly-detection, instrumentation, SETI, technosignature, atmospheric-phenomena

Key points

• The 2021 ODNI preliminary assessment cited 144 UAP reports, of which 143 remained unexplained, with many involving corroborative multi-sensor observations, radar, infrared, electro-optical weapon detection systems, and direct visual, by U.S. military personnel.p.4
• The paper's null hypothesis is explicit: no aerial scientific anomaly exists in Earth's atmosphere. The search is designed to test this against a calibrated observational census rather than relying on eyewitness accounts.p.3
• The instrument suite has six modalities: wide-field multispectral cameras, narrow-field imaging/spectro/polarimetric cameras, passive multistatic radar arrays, radio spectrum analyzers, broadband microphones (infrasonic through ultrasonic), and environmental sensors.p.2
• Three prior long-term scientific field studies informed instrument design: Hessdalen Valley, Norway (1984–present), Yakima Valley, WA (1972–2007, 82 documented events, over 12 hours of digital magnetic data), and Piedmont, Missouri (1973–1981, 153 observer sightings, 33 photographs).p.7
• Project Blue Book (1952–1969) investigated over 12,000 military and civilian UAP reports; the subsequent Condon Report, which concluded further study would be of marginal scientific utility, classified approximately one-third of examined cases as 'unexplained'.p.6
• By May 2022, the first U.S. congressional public hearing on UAP in over 50 years reported that the total number of military UAP reports had grown from 144 to 400 in under a year, prompting the renaming and expansion of AOIMSG into the All-domain Anomaly Resolution Office (AARO).p.4
• The paper frames UAP anomaly recognition through the history of science, drawing a parallel to Enlightenment-era denial of meteorite falls, including a 1777 Royal Academy report co-signed by Lavoisier declaring it impossible for stones to fall from the sky, before the 1803 L'Aigle mass sighting forced acceptance.p.5

Verbatim

• “[for] too long the stigma associated with UAPs has gotten in the way of good intelligence analysis.”

  p.4

Most interesting

• Antoine-Laurent de Lavoisier co-signed a 1777 Royal Academy of Sciences report declaring it impossible for stones to fall from the sky; the paper explicitly invokes this as a cautionary parallel for institutional dismissal of anomalous phenomena.
• The Yakima Valley, WA field study ran for 35 years (1972–2007) and documented 82 events using an instrument suite that included magnetometers, a Geiger counter, spectrographic cameras, and an ultrasound-to-audible translating microphone, all operated by a non-institutional team.
• The Hessdalen Valley, Norway study has been running continuously since 1984 and captured low-resolution optical spectra (resolving power ≤1000), radio emissions, magnetic field anomalies, and active radar returns from episodic anomalous atmospheric lights, making it the longest-running dedicated UAP instrument study on record.
• The paper's science traceability matrix (STM), a formal tool from planetary mission design connecting science objectives to measurement requirements, represents the first application of this methodology to UAP research.
• The Galileo Project is donor-funded and based at Harvard University, established in July 2021; the paper's co-author list spans Wellesley College, MIT, Caltech, Johns Hopkins, Space Telescope Science Institute, and institutions in Spain, Scotland, and Canada.
• At the time of submission, the peer-reviewed literature contained only a handful of instrument-based UAP studies; the paper notes that the bulk of available scientific field data resides in a 'gray literature' of books, conference proceedings, and unpublished reports that academic researchers routinely ignore on evidentiary grounds.