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ALSACAT is my comprehensive catalog of UFO sighting reports in Alsace, the region is the North-East of France, whether they are "explained" or "unexplained".

The ALSACAT catalog is made of case files with a case number, summary, quantitative information (date, location, number of witnesses...), classifications, all sources mentioning the case with their references, a discussion of the case in order to evaluate its causes, and a history of the changes made to the file. A general index and thematic sub-catalogs give access to these Alsatian case files.

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Case of Tieffenbach, on October 21, 2014:

Case number:



On October 24, 2014, the website of the regional newspaper "Dernières Nouvelles d'Alsace" headlined about a "UFO over Tieffenbach".

The article told that one "Mario", of Tieffenbach, had seen "a weird show Tuesday morning" so on October 21, 2014, in the sky of Tieffenbach. "It was a contrail of a particular form."

In fact, as shown in the photo published with the article, visible below in this file, there was no reason at all to talk about a UFO: this was just a looped condensation trail.


Temporal data:

Date: October 21, 2014
Time: Morning.
Duration: ?
First known report date: October 24, 2014
Reporting delay: 2 days.

Geographical data:

Department: Bas-Rhin
City: Tieffenbach
Place: From the village, phenomenon in the sky.
Latitude: 48.903
Longitude: 7.249
Uncertainty radius: 1 km

Witnesses data:

Number of alleged witnesses: 1
Number of known witnesses: 1
Number of named witnesses: ?
Witness(es) ages: ?
Witness(es) types: Male.

Ufology data:

Reporting channel: The regional Press.
Type of location: From the village, phenomenon in the sky.
Visibility conditions: Day.
UFO observed: No
UFO arrival observed: N/A
UFO departure observed: N/A
Entities: No
Photographs: Yes.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: ?
Witnesses interpretation: ?


Hynek: N/A
ALSACAT: Jet contrail.




Tieffenbach Rätsch - Tieffenbach

10/24/2014 at 05:00

A UFO above the village

Mario of Tieffenbach witnessed a strange spectacle in the sky of Tieffenbach on Tuesday morning. He observed a condensation trail of a particular form.

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The newspaper must have been in pain to tell anything interesting that day; so "UFO" scoffing helped.

Unless of course that since 2014, aliens started to use spaceship that leave contrails, a feature that seems to me quite unprecedented in the UFO literature...


Jet contrail.

Sources references:

* = Source is available to me.
? = Source I am told about but could not get so far. Help needed.

File history:


Main author: Patrick Gross
Contributors: None
Reviewers: None
Editor: Patrick Gross

Changes history:

Version: Create/changed by: Date: Description:
0.1 Patrick Gross July 14, 2015 Creation, [dna1].
1.0 Patrick Gross July 14, 2015 First published.

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This page was last updated on July 14, 2015.