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ALSACAT:

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 Mulhouse, on March 18, 2007:

Case number:

ALSACAT-2007-03-18-MULHOUSE-1

Summary:

On August 18, 2008, "bérith" wrote his testimony on the ufology web board "Les Mystères des OVNIS", about his sighting of March 18, 2007 at 2:30 p.m. in Mulhouse.

He explains that he was then with three other people, "in the direction of the exhibition park" in Mulhouse where a puppy show was taking place.

He was in the car "in the back on the right side", his wife was by his side, and in front were their two childhood friends talking. Leaning against his wife, lying down a bit, he had a view of the sky, and watched an Easyjet plane pass by at low altitude, easy to distinguish by its orange tail; he thought it was going to land at the Basel - Mulhouse airport.

He pointed out to his wife that it was the same plane they took to Rome the year before, and that is when when he saw an object following the plane at the back at about 20 meters from the plane.

He explained that the movements of the object were "incoherent", that it was in the shape of a moon, "one time you could see it and the next time following its movement it disappeared."

He could not assess its size, but visually indicated that it was smaller than the tail of the plane.

They then watched it until they exited the highway.

In response to questions from forum members, the witness stated that it had an angular height of 1 cm at arm's length, that he has a 10/10 eyesight, and was wearing neither glasses nor sunglasses at the time of the observation.

He specified the movement of the object behind the plane: it was stable at a constant pace, and suddenly "as if seized with madness", it "dropped like a leaf" before coming to a standstill again at a level lower than the aeroplane, it remained stable there for 1 minute, and then rose again and stabilized behind the plane. The object had made this move several times. He drew this sketch of the sighting:

Sketch.

He revised the wingspan of the object down to 7 meters, the plane had passed almost over the Manurhin factory (he made a map of the locations).

On the web forum, a first explanation was offered as follows: the object could have been a kind of flag that the plane would have "ripped off in passing". Then another explanation was proposed, that the "winglets" located at the end of the wings of the Airbuses could have caused a condensation of the water vapor contained in the air at the rear of the plane.

Data:

Temporal data:

Date: March 18, 2007
Time: 02:30 p.m.
Duration: Several minutes.
First known report date:
Reporting delay: 17 months.

Geographical data:

Department: Haut-Rhin
City: Mulhouse
Place: In car on the A36 highway just before the bride with the D66.
Latitude: 47.764
Longitude: 7.323
Uncertainty radius: 100 m.

Witnesses data:

Number of alleged witnesses: 2 or 4
Number of known witnesses: 1
Number of named witnesses: 0
Witness(es) ages: Adults.
Witness(es) types: Couple.

Ufology data:

Reporting channel: To the ufology Web board "Les Mystères des OVNIS".
Type of location: From inside car on urban highway stretch.
Visibility conditions: Day.
UFO observed: Yes.
UFO arrival observed: ?
UFO departure observed: No.
Entities: No.
Photographs: No.
Sketch(s) by witness(es): Yes.
Sketch(es) approved by witness(es): Yes.
Witness(es) feelings: Puzzled.
Witnesses interpretation: ?

Classifications:

Hynek: DD
ALSACAT: Peculiar contrail

Sources:

[Ref. myo1:] WEB BOARD "LES MYSTERES DES OVNIS":

bérith
Good Participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

2007: 03/18 at 2:30 p.m.- Mulhouse - (68)

on Mon Aug 18, 2008, 00:24

March 18, 2007, 2:30 p.m.-mulhouse

I am with friends (4), in the direction of the expo park of mulhouse a puppy exhibition is presented there.

I am at the back on the right side my wife is next to me in front of our two childhood friends discussing, on the way I put myself against my wife a bit we will say and I had a view on the sky I look past an easy jet plane (orange rear) low altitude I think it was going to bale-mulhouse airport and I said to your wife it's the same plane we took to go to rome last year and it is at this moment that I see an object which is the plane in the back at maybe 20m these movement was incoherent it was in the shape of a moon once we could see it and at the same time 'after following its movement it disappears I can not assess its size smaller than the tail of the plane, we observed it until our highway exit, it was not my first observation that's why I noted the time, date and exact location.

Rémy.F
Moderator
Male Age: 27
Number of messages: 797
Registered on: 03/12/2007
Localization: Grenoble
Job: Etudiant
Hobbies: divers

Re: 2007: 03/18 at 2:30 p.m.- Mulhouse - (68)

on Mon Aug 18, 2008, 10:14 AM

Thank you for your testimony.

I have a question: What size was the object at arm's length approximately? I know it was less than the tail of the plane but if you could tell us a little more ...

Thanks in advance.

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Mon Aug 18, 2008, 13:18

at arm's length 1cm

Derek3D
Rare participation
Male Age: 30
Number of messages: 763
Registered on: 22/05/2008
Localization: Belgique
Job: None
Hobbies: Ufology

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Mon Aug 18, 2008, 14:22

Hello bérith.

Could it come from a reflection of the sun on the fuselage of the plane?

Albundy11
Scientific Culture
Male Age: 37
Number of messages: 82
Registered on: 25/04/2008
Localization: narbonne
Job: Ing. R&D
Hobbies: reading

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Mon Aug 18 2008, 15:12

Hello Bérith,

Do you wear or were you wearing glasses?

for view corection? sunglasses?

Regards.

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Mon Aug 18, 2008, 23:10

okay not a reflection (observation of 5-8min)

and when I said that the object had an incoherent displacement it was as if it dropped a few meters (we can say that it fell like a leaf) before getting back to the plane's rear -

and for my eyesight I have 10-10

I am available to you.

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

oh and no sunglasses.

Albundy11
Scientific Culture
Male Age: 37
Number of messages: 82
Registered on: 25/04/2008
Localization: narbonne
Job: Ing. R&D
Hobbies: reading

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Tue 19 Aug 2008, 09:55

Hello Bérith,

Thank you for these clarifications.

I have a hypothesis:

Just after takeoff of the plane, in its upward phase, hung with its tail an object (advertising flag, EDF line beacon, or other ....) and dragged it in the air. Inconsistent movements being this object which is subjected to turbulence ...

What do you think?

Looking forward to it.

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Tue 19 Aug 2008, 13:08

edf flag in the shape of a moon which disappears and reappears I know that we must keep cool but hey .....

I will correctly explain the movement of the object and if I can give you a sketch I would do it: the object must have been at 20m a can and was stable at a constant pace and suddenly as if taken by madness he would fall like a leaf before coming to rest again but at a lower level of the plane it remained stable there for 1min and climbed again and stabilized behind the plane, and this movement it did several times.

[I did not reproduce all the questions in this continuation.]

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Wed 20 Aug 2008, 22:27

So here is the object in fall and at what distance it was from the plane for the estimate I let you do the calculations it is you the experts, i just try with my words to tell you the facts as well as possible, i thought the date and time was good but ultimately no, ten years before I experienced something else but I no longer remembered the time and I swore to myself that if one day i happened to new observed something i will be more precise in the end it's not so easy to have all the exact data precisely.

Sketch.

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Wed 20 Aug 2008, 23:08

-okay jean so in my memory no landing gear, and yes for months it was like a half moon that's it when we speak with our words ... in short

-to be precise I remember that it was the a35 and we took the administrative city exit the plane was almost above the manurhin (factory)

-the color it was strange like a mirror suddenly very shiny and following its movement it disappeared and reappeared it was the most disturbing it was as if it sent back to us a reflection of a mirror

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

that's it modified with the means i have

Scan.

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

sorry givn that I don't drive i don't have a lot of notion about the roads and my wife who is next to me put me in error, I hope you see the plane

Scan.

bérith
Good participation
Male Age: 38
Number of messages: 25
Registered on: 17/08/2008
Localization: france
Job: operator
Hobbies: general sport

Re: 2007: 03/18 at 2:30 p.m.- Mulhouse - (68)

on Thu, Aug 21, 2008, 02:39

it is true that to be exact i would lower its wingspan to 7m and so we soulw be ok compared to what we saw and my wife confirms it to me it was smaller and there with the sketch of the plane it's easier, but its movement when it dropped like a fall was the most impressive as a leaf.

thank you jean it's good to chat with serious people.

Jean Curnonix
Scientific Culture
Male Age: 58
Number of messages: 1993
Registered on: 31/05/2008
Localization: France
Job: Actif
Hobbies: Various

Re: 2007: on 03/18 at 02:30 p.m.- Mulhouse - (68)

on Thu 21 Aug 2008, 12:39

Hello berith,

At this stage in our discussions, here is how we can summarize your observation.

At the beginning of the afternoon on Sunday March 18, 2007, by car with three other people, you seated in the back next to your chosen one, you went to the Mulhouse exhibition center.

The car was traveling on the A36 motorway (= La Comtoise) in the direction of Besançon >>> Mulhouse.

At 2:30 p.m., through the left rear window, you saw an easyJet aircraft above the Manurhin factory, probably an Airbus A319 (aircraft making up most of this airline's fleet) in the process of approach, at an altitude of about 500 meters with a ground speed of about 250 km / h, for a landing at Basel-Mulhouse-Freiburg international airport (ICAO code = LFSB).

The METAR data from the airport's weather records indicate, for this March 18, 2007 at 2:30 p.m., a cloudy ceiling at 3600 feet, that is to say 1100 meters, a fine rain appearing within the hour next.

Downstream from the plane about twenty meters, you observe an object in the shape of a crescent Moon, or boomerang with a wingspan of about 7 meters, presenting the appearance of a mirror, twirling by performing "dead leaf" falls then ascending:

An explanation comes to mind because of the winglet on the end of each of the wings of the Airbus A319:

These winglets generate successive pressures / depressions which in certain atmospheric circumstances locally cause condensation of the water vapor contained in the air.

This phenomenon is clearly visible on the following photographic photograph, in addition, here, to the contrails due to the reactors:

The appearance of an object in the shape of a crescent Moon and its twirls can thus be explained (... especially for someone, who like me, did not make the observation that you made).

What is less explanable is the mirror aspect, which you report, given the cloudy sky and therefore the impossibility of the reflection of direct sunlight on the ice crystals possibly contained in these vapor condensations of water ... although a flashing fire in the drift of the A319 may have intermittently illuminated such crystals strongly.

So the riddle remains unresolved, because one cannot objectively pronounce oneself about what you observed.

Sincerely,

Jean

PS: Regarding the movement in "fall of dead leaf", you will probably be interested in reading the article, summarizing the study of the physicist Auguste Meessen, entitled "The oscillatory movements of UFOs and their explanation"

Discussion:

Map.

Evaluation:

Peculiar contrail.

Sources references:

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

File history:

Authoring:

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

Changes history:

Version: Create/changed by: Date: Description:
0.1 Patrick Gross March 4, 2023 Creation, [myo1].
1.0 Patrick Gross March 4, 2023 First published.

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This page was last updated on March 4, 2023.