◉ danix
⏎
arxiv · archive / academic cred 4 · 2022-10-05

"Down to Earth" Limits on Unidentified Aerial Phenomena in Ukraine (Comment on arXiv:2208.11215)

Hosted on danix · open PDF · original source
A recent report by astronomers about Unidentified Aerial Phenomena (UAP) in Ukraine (arXiv:2208.11215) suggests dark phantom objects of size 3-12 meters, moving at speeds of up to 15 km/s at a distance of up to 10-12 km with no optical emission. I show that the friction of such objects with the surrounding air would have generated a bright optical fireball. Reducing their inferred distance by a factor of ten is fully consistent with the size and speed of artillery shells.

Tags

evidence: Document
source: Academic
Source URL: http://arxiv.org/abs/2210.01972v1
Last seen: 2026-05-10 10:21 · hash 2500d59e2a67…
Permalink: /item/01KR8HDRF9YNNBBGYFR2FZWG25.html

Related

📄
arxiv · archive / academic cred 4

Critical Evaluation of Studies Alleging Evidence for Technosignatures in the POSS1-E Photographic Plates

Recent studies by B. Villarroel and colleagues have assembled and analyzed datasets of unidentified features measured from digital scans of photographic plates captured by the first-epoch Palomar Observatory Sky Survey (POSS1) in the pre-S…

2026-01-29
📄
arxiv · archive / academic cred 4

Relaying Signal When Monitoring Traffic: Double Use of Aerial Vehicles Towards Intelligent Low-Altitude Networking

In intelligent low-altitude networks, integrating monitoring tasks into communication unmanned aerial vehicles (UAVs) can consume resources and increase handoff latency for communication links. To address this challenge, we propose a strat…

2025-12-16
📄
arxiv · archive / academic cred 4

The Flying Saucer edge-on disc's Near Infrared silhouette revealed by the JWST JEDIce program

Edge-on discs offer a unique opportunity to probe radial and vertical dust and gas distributions in the protoplanetary phase. This study aims to investigate the distribution of micron-sized dust particles in the Flying Saucer (BKLT J162813…

2025-12-15
📄
arxiv · archive / academic cred 4

Edge-On Disk Study (EODS) III: Molecular Stratification in the Flying Saucer Disk

Context: Investigating the vertical distribution of molecular content in protoplanetary disks remains difficult in most disks mildly inclined along the line of sight. In contrast, edge-on disks provide a direct (tomographic) view of the 2D…

2025-09-30
📄
arxiv · archive / academic cred 4

Flow Matching-Based Active Learning for Radio Map Construction with Low-Altitude UAVs

The employment of unmanned aerial vehicles (UAVs) in the lowaltitude economy necessitates precise and real-time radio maps for reliable communication and safe navigation. However, constructing such maps is hindered by the infeasibility of …

2025-09-17
📄
arxiv · archive / academic cred 4

The deployment of a geomagnetic variometer station as auxiliary instrumentation for the study of Unidentified Aerial Phenomena

Witness reports of Unidentified Aerial Phenomena (UAP) occasionally associate UAP sightings with local electromagnetic interferences, such as spinning magnetic compasses onboard aircraft or sudden malfunctions of mechanical vehicles. These…

2025-07-15
📄
arxiv · archive / academic cred 4

Edge-On Disk Study (EODS) II: Thermal Structure of the Flying Saucer Disk

Context. The dust and gas temperature in proto-planetary disks play critical roles in determining their chemical evolution and influencing planet formation processes. Aims. We attempted an accurate measurement of the dust and CO temperatur…

2025-07-04
📄
arxiv · archive / academic cred 4

Galileo Project Observatory Class System Architecture

Scientific investigation of Unidentified Anomalous Phenomena (UAP) is limited by poor data quality and a lack of transparency. Existing data are often fragmented, uncalibrated, and missing critical metadata. To address these limitations, t…

2025-05-30