Amazing Report of UFO Sightings by Japan Air Self-Defense Force (JASDF)

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This is a true story of a man who reported amazing UFO sightings as an air traffic controller of Japan Air Self-Defense Force (JASDF).

Tsuruhiko Kiuchi (born 1954) is a Japanese comet hunter and writer.

Tsuruhiko Kiuchi (born 1954), a Japanese comet hunter and writer. 

As a comet hunter, Kiuchi discovered Comet Cernis-Kiuchi-Nakamura (1990b) and Comet Tsuchiya-Kiuchi (1990i).

Kiuchi also rediscovered Comet Metcalf-Brewington (1906VI=97P/1906 V2) and Comet Swift-Tuttle (109P/Swift-Tuttle).

Perseid meteor, originating from Comet Swift-Tuttle, from the ISS

Before the rediscovery, it was predicted that the Comet Swift-Tuttle would return between 1979 and 1983, but it didn’t show up.

In 1990-1992, comet hunters around the world usually calculated cometary orbits using a computer and spotted a comet on a photographic plate.

However, Kiuchi calculated cometary orbits using a handy calculator and spotted comets with a large binocular telescope in Mt. Yatsugatake.

Kiuchi hunting for a comet through a large binocular telescope in Mt. Yatsugatake

Thus, Kiuchi became famous as a Japanese amateur astronomer hunting comets around the world.

By the way, before he become a comet hunter, Kiuchi worked for Japan Air Self-Defense Force (JASDF) as a flight dispatcher of aeronautical operational control in Hyakuri Air Base in Omitama, Ibaragi, Japan.

Source Maximilian Dörrbecker (Chumwa) – Own work

Hyakuri Air Base

Kiuchi Observed UFOs as an Air Traffic Controller of JASDF

After joining the JASDF, Kiuchi really started thinking that UFOs might exist.

One day, the JASDF got a strange request from the agency of the Japanese government.

They requested the JASDF to schedule a time so that any aircraft would not fly all over Japan from 20:00 to 22:00 for one week.

At that time, Kiuchi worked as an air traffic controller of the JASDF.

So, Kiuchi was given an order to track any aircraft flying over Japan by radar during the scheduled time period.

Although any aircraft was not permitted to fly over Japan during that time period, Kiuchi received a lot of reports on unidentified flying objects.

Actually, Kiuchi captured an unidentified flying object by radar of the control tower of Hyakuri Air Base.

F-4EJ Kai of 301st Tactical Fighter Squadron of Hyakuri Air Base

According to Kiuchi, any aircraft must be equipped with an operating IFF (Identification Friend or Foe) transponder system.

If the transponder receives the proper electronic code from an air traffic control interrogator system, it automatically transmits the requested identification back to the interrogating radar.

Thus, it enables the air traffic control interrogation system to determine its nationality and type and its range from the interrogator.

However, the flying object that Kiuchi captured by radar did not transmit the requested identification back to the interrogating radar.

Kiuchi actually tracked the unidentified flying object as a small dot on a radar screen of Hyakuri Air Base.

It appeared around Izumo, Simane at first and then it flew to Sendai, Tohoku.

After that, it vanished from the radar screen without leaving any trace.

The speed of the unidentified flying object was amazing.

The distance from Izumo to Sendai is about 780 kilometers (about 480 miles) and thus it takes at least about 40 minutes to fly from Izumo to Sendai by plane no matter how fast it flies.

The distance from Izumo to Sendai is about 780 kilometers (480 miles)

However, the unidentified flying object flew 780 kilometers (about 480 miles) in just 3 minutes.

That is, it’s speed reached about 15,600 kilometers per hour (about 9,700 miles per hour) or Mach 12.6!

In 1970s when Kiuchi worked for the JASDF, there was no aircraft capable of flying at such high speed in the world.

At that time, the North American X-15, a hypersonic rocket-powered aircraft, flew at the highest speed (Mach 6.70).

X-15 after igniting rocket engine

So, it could not be an aircraft.

Another possibility is that it was a meteorite.

If so, the meteorite should fall parabolically.

However, the unidentified flying object Kiuchi tracked by radar flew parallel to the earth’s surface at a certain altitude.

Therefore, Kiuchi could not think of anything but an artifact of extraterrestrial origin.

So, Kiuchi submitted a report on the unidentified flying object to the senior officials of the JASDF.

But, Kiuchi had no way of knowing how they handled his report on the UFO after that.

Kiuchi did not even know why the Japanese government made such a strange request to the JASDF.

Perhaps, they tried to find something about UFOs.

Amazing UFO Sightings by the JASDF Pilots

By the way, the JASDF conducted interviews with pilots.

In the interviews, pilots were asked as follows.

Please let us know, if you remember something different happened to you in flight.

Amazingly, a lot of pilots stated that they saw UFOs in flight.

According to Kiuchi, one of the pilots stated as follows.

When I was cruising at an altitude of 50,000 feet, I saw a formation of UFOs flying overhead.

Another pilot stated as follows.

An UFO was flying across the sky in my sight.

So, one of the colleagues told his private opinion to Kiuchi,

There were more cases of UFO sightings than I had expected.

After all, UFOs actually exist, don’t they?

However, it was taboo to reveal the UFO sightings in the JASDF.

So, they kept the information of UFO sightings secret.

Nevertheless, Kiuchi submitted the report on the UFO sightings to the senior officials of the JASDF.

But, Kiuchi did not know how they evaluated his report, because he has not been involved in this matter after he retired from the JASDF.

Perhaps, the Kiuchi’s amazing report on the UFOs of extraterrestrial origin was treated as confidential by the JASDF or the Japanese government agency.

Kiuchi Observed a Strange Light in the Distant Space

After retiring from the JASDF, Kiuchi returned to his hometown, Nagano.

Then he began to search a comet as a comet hunter.

When he was watching the stars, Kiuchi actually saw UFOs several times.

Through the binocular telescope, he could confirm even the shape of windows of a jumbo jet flying several tens of kilometers ahead .

Therefore, Kiuchi could see through the binocular telescope the shape of the window of an UFO as well as its rotary motion.

It was in 1994 when Kiuchi saw an UFO through the binocular telescope for the first time.

This UFO was shaped like a saucer and Kiuchi clearly confirmed that it had windows in the middle and its bottom portion was rotating.


Furthermore, Kiuchi also saw the strange light in the space beyond the earth’s atmosphere.

One day, when he searched a new comet on Mt. Yatsugatake as usual, he found a strange light.

Kiuchi observed through the binocular telescope that the light was moving in the space far away from the earth.

As a result of calculation, he found that the light was moving at an incredible high-speed out of this world.

From the motion, it was clear that the light was not due to a star.

Clearly, it was an UFO that was artificially made by someone, but Kiuchi could not know what it actually was.

Later, Kiuchi made an inquiry about the strange light to the Nobeyama Radio Observatory (NRO), a division of the National Astronomical Observatory, located near Minamimaki, Nagano, Japan.

Nobeyama radio observatory, at Minamimaki Nagano Japan

Source Wiiii – Own work

Amazingly, at the same time when Kiuchi saw the strange light, NRO also received strange radio waves transmitted in a constant time period.

Kiuchi says,

Perhaps, that strange light was emitted from an extraterrestrial space station.

In this way, iKiuchi has actually seen UFOs several times.

However, when he was asked by children who went to see the stars with him,

Do UFOs really exist?

Kiuchi always answered to their question,

No, there are no UFOs.

Since the existence of an UFO has not been verified scientifically so far, Kiuchi had no choice but to officially say that as a comet hunter.

Amazing Report of UFO Sightings by Japanese Astronomers

By the way, according to Kiuchi, stargazers using optical telescopes often see an UFO.

When they observe the stars, they accidentally find an UFO.

One day, when an astronomical observation event was held, Kiuchi had a chat with staff members of an astronomical observatory in a waiting room.

Kiuchi said,

To tell the truth, I have seen an UFO before.

Then, the director of the observatory leaned over to talk to Kiuchi.

Oh!  You, too?

Actually, I have seen an UFO, too.

Surprisingly, the other members of the observatory told Kiuchi their sightings of an UFO one after another.

Me, too!

I have seen an UFO as well!

They observe the stars everyday through an astronomical telescope which is much more sophisticated telescope than the commercially available one.

But they have seen something that they were not supposed to see.

However, they did not know what to say, because they are all space specialists and scientists.

If they said something wrong, they would put their credibility at stake.

Therefore, they pretended that they did not see it and they have kept tight-lipped about their UFO sightings until then.

Kiuchi was surprised to learn that the members of the observatory had difficulty in lying to themselves in that way.

They are all scientists and so they could not accept something mysterious that was ruled out by the laws of physics.

How to Observe UFOs?

By the way, skeptical people may point out that Kiuchi mistook artificial satellites for UFOs.

However, Kiuchi does not make such a simple mistake, because he has a lot of experiences as a comet hunter.

Actually, he knows everything about the artificial satellites that orbit around the earth.

Kiuchi says,

I can discover a new comet, because I know the position of every satellite, which an inexperienced astronomer often mistook for a comet.

On the contrary, the UFO information of the experienced comet hunter is highly credible, because they have observed space every evening and know everything about space.

According to Kiuchi, an inexperienced person often mistakes aircraft or Venus for an UFO.

Especially, an airplane has anti-collision lights, such as flashing red lights fitted on the top and bottom fuselage and flashing white lights on the furthest left and right.

Therefore, if you see an airplane from the front when it lands, its anti-collision lights look like they sway from side to side.

As a result, if an inexperienced person sees the anti-collision lights swaying from side to side, he or she would mistake the airplane for an UFO.

Also, Venus is the second-brightest natural object in the night sky after the Moon.

Thus, its light can reach the naked eye through a thin layer of clouds.

Venus is always brighter than all other planets or stars as seen from Earth. The second brightest object on the image is Jupiter.

Source Brocken Inaglory – File:Venus with reflection.jpg

Therefore, when the clouds move, it looks like the light from Venus moves.

As a result, if an inexperienced person sees the lights from Venus through a thin layer of clouds, he or she would mistake Venus for an UFO.

By the way, how to see an UFO?

The below is the advice from Kiuchi to people who want to see an UFO.

If you want see an UFO, you should observe it through an optical telescope or binocular telescope with magnifying power over 7.

Also, you should observe it fixing your posture firmly and stably in a sitting position as much as you can.

By doing so, you can observe the details of the object with no deviation.

If everything goes well, you can confirm the rotating parts of an UFO as well as the shape of its windows.

Furthermore, if you find an UFO, you should record the time and place.

It would be perfect if you record the constellations in the background of the UFO.

If the data are recorded at the same time by at least three persons at different places, you can identify the exact position of the UFO.

If more data are available to you, you can also identify the orbit of the UFO as well as its exact shape.

Currently, Kiuchi is planning an experiment with graduate students to observe an UFO in Japan.

In this experiment, Kiuchi arranged optical telescopes and cameras at intervals of ten meters.

The cameras react automatically with the light emitted from the flying object in the sky and record its position.

By analyzing the data, Kiuchi can identify the exact position and orbit of the flying object.

Kiuchi emphasizes,

It’s not enough to collect the cases of UFO sightings.

It’s important to cite scientific evidence of an UFO.

That is the reason why Kiuchi is planning the above experiment.

Some day, in the near future, the day may come when it is scientifically proven that UFOs are extraterrestrial spacecrafts.

Then, a new era will begin.

Published on January 13, 2019

Updated on May 11, 2020

Written by OTAKUPAPA


  1. Tsuruhiko Kiuchi (November 1995). “The memory of the space.”
  2. Tsuruhiko Kiuchi (April 2003). “The starry heavens teach our way of living.”
  3. Tsuruhiko Kiuchi (May 23, 2014). “My near-death experience teach the structure of the universe.”
  4. Tsuruhiko Kiuchi In Wikipedia.

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A dad blogger who loves manga, anime, games. In this blog, I will introduce amazing Japanese spirituality and philosophy.


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