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As its name suggests, 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.

Case of Niedersteinbach, in 1999:

Case number:



In a listing of UFO sighting reports in the Haut-Rhin on their website, the Alsatian ufology association SPICA noted in 2015 that in 1999 in Niedersteinbach, a "ball, balloon or melon (3D)" of green color was seen; which remained unidentified, but was probably a meteor.


Temporal data:

Date: In 1999
Time: ?
Duration: ?
First known report date: 2015
Reporting delay: 16 years.

Geographical data:

Department: Bas-Rhin
City: Niedersteinbach
Place: ?
Latitude: 49.029
Longitude: 7.712
Uncertainty ratio: 1 km

Witnesses data:

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

Ufology data:

Reporting channel: Listing of sightings by the regional ufology group SPICA.
Type of location: ?
Visibility conditions: ?
UFO observed: Yes
UFO arrival observed: ?
UFO departure observed: ?
Entities: No
Photographs: No.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: ?
Witnesses interpretation: ?


Hynek: ?
ALSACAT: Probable météore.



City Date and hour of observation General shape
General color
NIEDERSTEINBACH 1999 ball, balloon or melon (3D)
Natural reentry
Strong hypothesis


As I found no other information, this shall remain a probable meteor...


Probable météore.

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 September 6, 2015 Creation, [spa1].
1.0 Patrick Gross September 6, 2015 First published.

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This page was last updated on September 6, 2015.