Denis Vida @meteordoc Twitter profile

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Denis Vida

@meteordoc

4 years

(1/2) An earthgrazer above N Germany and the Netherlands was observed by 8 #globalmeteornetwork cameras on Sept 22, 03:53:35 UTC. It entered the atmosphere at 34.1 km/s, reached the lowest altitude of ~91 km and bounced back into space! @westernuScience @IMOmeteors @amsmeteors

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Denis Vida

@meteordoc

9 months

Here's the full video of the asteroid #Sar2736 , a ~1 m object that broke up some 50 m west of #Belin , #Germany , and probably dropped some meteorites on the ground. Video credit:

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@meteordoc

2 years

Here is a selection of tau Herculids from last night observed by #globalmeteornetwork cameras. The video in real time and the cameras are close to the sensitivity of the human eye, so you can expect to see them like this in person tonight! #tauherculids2022 #Meteorshower

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@meteordoc

2 years

1/3 This year the Earth is passing through the resonant swarm of the Taurid meteoroid stream. Some have theorized that it might hold 100+ m asteroids and be the only known concentrated source of Potentially Hazardous Objects. We're organizing an observing campaign to map it out!

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@meteordoc

9 months

#Sar2736 - caught on camera!

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@meteordoc

4 years

(2/2) It was on a Jupiter-family orbit (a = 2.56 AU, q = 0.29 AU, e = 0.88, i = 2.93, w = 239.67, O = 359.31). Parent body seach found no conclusive hits.

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@meteordoc

3 years

Very rarely, our telescopic meteor tracking system records "bursting" meteors. These seem to catastrophically disrupt into constituent grains which ablate separately as single bodies. Credit: @WesternU Meteor Physics Group / @NASA Meteoroid Environment Office @westernuScience

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@meteordoc

2 years

#Sar2667 asteroid entry caught by a webcam in #Brighton

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@meteordoc

3 years

A #globalmeteornetwork camera in #Germany recorded a fireball on March 26 which left a dust trail visible for 20 minutes! The twisting was caused by high altitude winds. Credit: Jürgen Dörr

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@meteordoc

3 years

For the first time ever, we captured how the Geminids fragment with the Canadian Automated Meteor Observatory's telescopic system. Just in time to publish some papers before @JAXA_en DESTINY+ launches! Credit: @WesternU Meteor Physics Group / @NASA Meteoroid Environment Office

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@meteordoc

2 years

An extremely bright bolide was observed over #Arizona on Oct 31 which left a smoke trail visible for over 20 minutes! Credit: Matt Cheselka ( @AstroAndMusic ), Lowell Observatory ( @LowellObs ) #fireball #meteor

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@meteordoc

2 years

An almost #meteorite dropper last night (2022/07/13 01:13:57 UTC) over lake Balaton in #Hungary . It entered the atmosphere at 29.3 km/s over #Croatia . It became visible at the height of 103 km, lasted over 6 seconds, and reached a terminal height of 37 km. No rocks this time...

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@meteordoc

2 years

For the first time ever, we have a direct measurement of a rocky meteoroid that came from the Oort cloud! Here's my paper in Nature Astronomy:

Nature Astronomy

@NatureAstronomy

2 years

A 2 kg rocky meteoroid observed in February 2021 is shown to be coming directly from the Oort cloud, indicative of a high ice/rock ratio there (1-20%) and supportive of a massive proto-asteroid belt scenario. Vida ( @meteordoc ) et al.:

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@meteordoc

1 year

The skies were busy last night with #Persieds (and satellites near the morning). Make sure to watch tonight if the weather is clear! #MeteorShower #globalmeteornetwork #meteor

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@meteordoc

4 years

Another grazing #meteor spotted above Europe - it entered the atmosphere over #Poland , reached the lowest height of 80 km over #Bavaria , and returned to space over Southern #France . #globalmeteornetwork Credit: Milan Kalina @IMOmeteors @amsmeteors

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@meteordoc

9 months

Where are #meteorites from #2024BX1 / #Sar2736 ? Preliminary modelling shows most small ones are in woods ~10 km west of Nauen, but 10+ g rocks are in fields. Due to the very steep entry angle, the strewn field is quite small, so the chances are good.

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@meteordoc

3 years

Our #meteor cameras observed a large #fireball last night at 2021/04/17 03:47:35 which dropped around 50-300 grams of #meteorites in the fields 10 km west of Lindsay, ON. If you find a black rock on your property, let us know! @KimTTait Video credit: Tim Claydon, Miguel Preciado

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@meteordoc

3 years

Our #meteor cameras caught an extremely rare multiple #fireball event! The fragmentation occurred shortly before it entered the atmosphere, but we still don't understand why. We're preparing a paper about this one-of-a-kind event! @westernuScience @BadAstronomer @westernuSpace

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@meteordoc

3 years

"What would happen if we tried to detect satellites instead of meteors with a #globalmeteornetwork camera?" - a total of 616 tracked on the first night with a narrow-field camera (5°x3°) that sees stars down to mag +10.

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@meteordoc

3 years

Bright #fireball recorded last night (2021/07/22 00:10:48 UTC) by 9 #globalmeteornetwork cameras over #BosniaandHerzegovina . It ended at the height of 35.2 km with the final velocity of 5 km/s. Unfortunately no #meteorites !

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@meteordoc

1 year

A July Pegasid #fireball has been observed by 10+ #globalmeteornetwork cameras over #Hungary , #Croatia & #Slovenia on July 15 12:51:40 UTC. It had an extremely high begin height of ~170 km and it ended at ~84 km. Video from Croatia below.

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@meteordoc

3 years

For the first time ever, researchers from #Australia ( @seamus_anderson & co.) recovered a freshly fallen #meteorite using a #drone and #MachineLearning : @CurtinUni

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@meteordoc

2 years

We used over 500 #globalmeteornetwork cameras world-wide to measure the activity of the #TauHerculids2022 . The shower peaked at a solar longitude 69.42° +/- 0.2° (May 31, 04:15 UT) with a ZHR of about 28 +/- 2. Unfortunately no storm, but still an exciting shower! #Meteorshower

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@meteordoc

2 years

Hundreds of tau Herculid meteors were detected last from individual #globalmeteornetwork stations! Data analysis is in progress. Observing in person was also a rare treat, we saw short bursts of 7-8 meteors in a few minutes. #Meteorshower #TauHerculids2022 @westernuSpace

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@meteordoc

4 years

A small meteorite fell into the Adriatic sea last night (2020/11/06 16:46:20 UTC), 12 km east of the town Roseto degli Abruzzi. Observations by the #globalmeteornetwork below. @IMOmeteors @amsmeteors @westernuSpace

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@meteordoc

9 months

It looks like a tiny ~1m asteroid #Sar2736 will impact above NE #Germany (around #Berlin ) in about an hour (00:30 UTC). The object is too small to pose any threat, but it will probably drop meteorites to the ground. Anyone awake in the area, keep an eye out!

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@meteordoc

3 years

Another camera 40 km away also caught the sprite, so I made an animation showing its 3D structure! It seems to be composed of six "wings". #redsprites #lightningsprites @earthskyscience @frankie57pr @weatherchannel @StormchaserUKEU @severeweatherEU @DeborahTiempo @PaulMSmithPhoto

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@meteordoc

7 months

An ~800 g #meteorite was found yesterday by @FireballsNZ based on #globalmeteornetwork cameras and methods. So far it looks like an ordinary chondrite but has a peculiar Aten-type orbit spanning almost exactly from Earth to Venus. More to come...

Fireballs Aotearoa

@FireballsNZ

7 months

Finding a #meteorite in #LOTR country - we were looking for one precious thing in the landscape where the #LOTR films were made two decades ago:

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@meteordoc

2 years

(1/14) Why is the fireball we talk about in our @NatureAstronomy paper () so important? It has to do with the fundamental understanding of the formation of our solar system.

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@meteordoc

2 years

The fireball observed yesterday (Sept 14, 20:59:40 UT) above the UK lasted over 20 seconds and traveled NW, passing directly over Belfast. The end was not observed on our cameras, but it definitely ended over the North Atlantic Ocean some 50-100 km west of the Isle of Islay.

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@meteordoc

3 years

On January 11 at 5:22 UTC, an 8-second fireball dropped 0.5-2 kg of meteorites in the Navajo Nation land west of #Albuquerque . Credit: @LowellObs , @NNMUseum , New Mexico #Meteor Array #Meteorite #ABQ #globalmeteornetwork #fireball

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@meteordoc

1 year

Another #meteorite dropping #fireball over the #Netherlands last night. Time 2023/06/04 22:10:03 UTC. Came down to ~29 km and dropped ~200 g of meteorites over southern Zuid-Beveland.

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@meteordoc

4 years

@esaoperations @westernuScience @IMOmeteors @amsmeteors Sure, go ahead. Credit the Global Meteor Network, the station operators whose data was shown here (Paul Roggemans, Jürgen Dörr, Martin Breukers, Erwin Harkink, Klaas Jobse, Kees Habraken), and me as the coordinator.

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@meteordoc

9 months

Another #meteorite find by the Hungarian group after only 58 minutes in the field! #2024BX1

Weltraum-Nerd

@NicosPanoptikum

9 months

@AsteroidEnergy Nachdem Erfolg der polnischen Gruppe, haben sich zwei Ungarn 10 Stunden ins Auto gesetzt, um ins Havelland zu fahren. Und nach nur 58 Minuten im Suchgebiet waren sie erfolgreich. #2024BX1 #Sar2736 @AsteroidEnergy

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@meteordoc

2 years

A 1 m asteroid was discovered by telescopes and predicted to impact near #Brantford , #Ontario . The video below shows the fireball caught from Toronto at 3:27 AM EST. The airburst was felt like a minor earthquake. Details to follow...

Scott Sutherland, Science Writer

@ScottWx_TWN

2 years

@GeorgeWHerbert Well, here's a BEAUTIFUL view of the bolide from the camera that looks up at the Tower...

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@meteordoc

2 years

An 18 yo student found a piece of #2023CX1 / #SAR2667 ! Congrats to the team!

Vigie-Ciel

@VigieCiel

2 years

🤩☄️ FRIPON/Vigie-Ciel retrouve un fragment de l’astéroïde 2023CX1 en Seine Maritime !!! La découverte a été faite par Loïs Leblanc, étudiante de 18 ans, faisant partie de l’équipe de recherche sur le terrain #2023CX1 #SAR2667

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@meteordoc

4 years

A rare two-headed meteor observed by the Canadian🇨🇦 Automated⚙️Meteor🌠 Observatory🔭(CAMO) #meteors @westernuScience @westernuSpace @IMOmeteors @amsmeteors

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@meteordoc

4 years

A bright #fireball was observed over the English Channel last night around 23:10 UTC. It was too fast (~33 km/s) and it ended too high up (~45 km) to produce any meteorites. Video from Ash Vale (UK000C, Richard Kacerek, @UKMeteorNetwork , #globalmeteornetwork ) #meteor #UK #France

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@meteordoc

9 months

Another great discovery by @sarneczky , congrats! The asteroid community really came through and in just 1.5 hours made over 130+ measurements on the asteroid before it entered the atmosphere.

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@meteordoc

1 year

A #fireball dropped a tiny ~20 g #meteorite some 100 km SW of #Perth , #Australia . It entered the atmosphere at a slow speed of 13.5 km/s, 60° entry angle. It was first observed at a height of 82.6 km and its terminal height was 30.7 km. Credit: Dave Rollinson #globalmeteornetwork

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@meteordoc

3 years

The #Perseids are in full swing - see the Istrastream web page for observations from across the globe:

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@meteordoc

1 year

The #Perseids are here and our meteor shower dial is showing it! You will definitely not see 130 meteors/hr though, realistically it will be about one a minute, but that number will vary with your local observing conditions. Seek dark skies, avoid any light (and your phone)

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@meteordoc

3 years

Another grazing meteor caught on November 6 from Prague by a #globalmeteornetwork camera. It lasted a total of 40 seconds! Credit: Milan Kalina Detailed analysis by EN here:

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@meteordoc

2 years

Our discovery of rocky meteoroids in the Oort cloud was featured on the cover of @NatureAstronomy ! We are happy for this impactful discovery to be recognized - but the journal messed up and wrote "Kuiper belt" instead...

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@meteordoc

2 years

Fascinating meteor cluster observed in Norway!

AMSMETEORS

@amsmeteors

2 years

Interesting capture from one of our ALLSKY7 cameras in #Norway . Wait for it, after the #fireball ...

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@meteordoc

1 year

An amazing display of sprites captured last night over the #Fiordland National Park in #NewZealand . @FireballsNZ #globalmeteornetwork #redsprites #tle #lightning #timelapse Credit: Jim Cheetham

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@meteordoc

3 years

@Cmdr_Hadfield Hey, that's our paper! If anyone is interested, here is the full talk:

EPSC2021-139-material-r0

This is "EPSC2021-139-material-r0" by Copernicus Meetings on Vimeo, the home for high quality videos and the people who love them.

vimeo.com

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@meteordoc

4 years

A grazing #meteor seen over #Germany and #Belgium by #globalmeteornetwork cameras last night at 19:38:17 UTC. It reached the lowest height of ~100 km before returning to space! Credit: Jürgen Dörr

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@meteordoc

1 year

On May 27, a #fireball dropped a ~200 g #meteorite (+ many smaller ones) in and NE of Deventer, the #Netherlands . The fireball was observed by 13 cameras of the #globalmeteornetwork .

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@meteordoc

2 years

Last night at 11:37 PM our cameras captured a fireball which dropped 50-200 g of meteorites just east of Lake Simcoe in Ontario. Contact us if you find any out of place baseball-sized black rocks in the area! More info: @westernuScience @westernuSpace

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@meteordoc

2 years

Our paper about the #Winchcombe fireball which dropped carbonaceous meteorites in the UK in 2021 has been published in @MeteoriticsPS ! Full manuscript: A summary below:

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@meteordoc

2 years

70 g #meteorite recovered in #Italy after the fall on February 14 - it was discovered after hitting a tile on a balcony, the loud sound alerting the residents.

PRISMA

@PRISMA_meteore

2 years

Eccola! Trovata la meteorite di San Valentino!

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@meteordoc

3 years

The #Perseids did not disappoint this year! If you missed them last night, you can still catch some tonight. More images here:

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@meteordoc

2 years

We observed the first rocky meteoroid from the Oort cloud, an area which was thought to be only populated by icy comets! Here's the @ScienceMagazine article about my @DPSMeeting talk. @westernuScience @BadAstronomer

Fireball from Solar System’s edge isn’t what astronomers expected

Rocky object suggests distant cloud of comets also contains asteroids

www.science.org

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@meteordoc

2 years

Seven meteorites recovered so far! #2023CX1 #Sar2667

Vigie-Ciel

@VigieCiel

2 years

Et de 1, et de 2 et de 3 et… de 7 🤩 Quelle aventure incroyable ! #2023CX1 #sciencesparticipatives

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@meteordoc

3 years

And here is how the #EtaAquariid meteors look like close up, when tracked through a telescope. The resolution here is 6 meters per pixel, and keep in mind that they are over 100 km away!

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@meteordoc

2 years

Another Taurid last night, caught from Long Island.

Tom A. Warner

@ztresearch

2 years

Another #Bolide last night. This time over Nantucket. Captured with my low-light camera in Montauk, NY. YouTube version available as well. #meteor #fireball @meteordoc @cshultzwx @amsmeteors

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@meteordoc

1 year

A ~200 g meteorite fall was recorded by @FireballsNZ #globalmeteornetwork cameras close to Dunedin, #NewZealand . It entered the atmosphere at 14 km/s and was last visible at 30 km. Data credit: B Evans, A Barron, R Dickie, R McBride, K Johnson More info:

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@meteordoc

3 years

Four years ago today, Mike Mazur and I installed the first #globalmeteornetwork camera at the @WesternU Elginfield Observatory. Today, there are more than 450 cameras across the globe. @westernuScience

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@meteordoc

2 years

(1/) Our new paper about the tau Herculid outburst last May is out! arxiv link: Summary below. Image credit: John Kmetz (GMN)

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@meteordoc

3 years

The #EtaAquariid meteor shower was observed by #globalmeteornetwork cameras last night - over 500 orbits were computed, and counting! #Meteorshower

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@meteordoc

4 years

1674 #Geminids captured last night by a #globalmeteornetwork camera in Croatia. Credit: Aleksandar Merlak @IMOmeteors @amsmeteors @BadAstronomer

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@meteordoc

2 years

A #fireball observed by the #globalmeteornetwork in #NewZealand dropped a tiny ~50 g meteorite. These are the most common meteorite-dropping fireballs - larger droppers are much rarer.

Fireballs Aotearoa

@FireballsNZ

2 years

Speaking of meteors getting in low above NZ... Exciting news - here's a fireball that was picked up at 80 km and tracked to 34 km, above central NZ on the 11th of March. Here's a report on the event: . Thanks to @meteordoc

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@meteordoc

2 years

Another example of amazing collaboration in the field of meteor astronomy in the UK - we pieced together the trajectory of a fireball using observations from 4 networks. A ~100 g meteorite is somewhere in South Wales, but the strewn field is huge due to the shallow entry angle.

UK Fireball Alliance

@UK_Fireball

2 years

As a result of the spectacular #fireball witnessed on 12th May 2022 at 00:40 BST, we are asking for the public's help in locating fragments of a meteorite which may have fallen over the town of Bridgend, south Wales. You can read the press release here:

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@meteordoc

6 months

Total eclipse as seen by a @WesternU all-sky fireball camera at the @PointPeleeNP . You can see the Moon's shadow moving across the sky! Sped up 8x #Eclipse2024 #meteors #fireballs

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@meteordoc

1 year

On October 6, 09:18:32 UTC, the #globalmeteornetwork captured its one millionth meteor orbit! It took the GMN just over 5 years to achieve this goal. We're getting over 1000 meteor orbits a day. There have been 1088 active cameras since 2018 and 900 are currently active.

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@meteordoc

4 years

An extremely long ~20 second fireball obseved over Austria from a #globalmeteornetwork camera in Prague last night at 2020-11-19 03:46:50 UTC. Credit: Milan Kalina @amsmeteors @IMOmeteors @popastro

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@meteordoc

10 months

The @FireballsNZ and #globalmeteornetwork cameras have detected meteors from a new #meteor shower produced by #comet 46P/Wirtanen! Although it had low activity (ZHR <= 5), it occurred exactly where and when it was predicted.

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@meteordoc

1 year

Another tiny ~30 g #meteorite ~100 km south of #Quebec City went into the dense woods near Lac Aylmer. Speed of 17 km/s, 66° entry angle. Observed between 85.4 - 28.7 km. Credit: Robert Veronneau, Michel Saint-Laurent, Guy Létourneau #globalmeteornetwork

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@meteordoc

2 years

(1/3) In the last week or so, there were 4 well documented #meteorite -dropping #fireballs ! Are they connected in any way? How come there was nothing all year and now suddenly there are four all at once?

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@meteordoc

2 years

A reminder how the #Geminids look up close!

Denis Vida

@meteordoc

3 years

For the first time ever, we captured how the Geminids fragment with the Canadian Automated Meteor Observatory's telescopic system. Just in time to publish some papers before @JAXA_en DESTINY+ launches! Credit: @WesternU Meteor Physics Group / @NASA Meteoroid Environment Office

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@meteordoc

4 years

The first instrumentally-observed iron meteorite was found in Sweden! The 14 kg meteorite was half-burried in the ground when the guys stumbled upon it. Original in Swedish: @IMOmeteors @amsmeteors @strewnify

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@meteordoc

2 years

2/3 Several big asteroid surveys will conduct campaigns, however the asteroids should be accessible by larger amateur telescopes. If they are really there, some should have magnitudes of +19 and brighter. The best visibility period is between Oct 25 - Nov 5.

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@meteordoc

2 years

3/3 The paper which describes the first discovery of the resonant branch: There have been theories about the branch since the 1990s, but objects embedded within it were only first confirmed in 2015. Mostly cm-sized objects, but also a few 100+ m asteroids!

Discovery of a new branch of the Taurid meteoroid stream as a real...

Taurid meteor shower produces prolonged but usually low activity every October and November. In some years, however, the activity is significantly enhanced. Previous studies based on long-term...

arxiv.org

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@meteordoc

3 years

Firefly season is back! A #meteor camera in #Quebec caught their dance last night. Credit: Gaétan Laflamme

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@meteordoc

2 years

I heard from local residents that quite a few people came out to search for the #meteorites here in #Ontario fell on April 18. Even some young kids (future scientists?) joined the hunt! Here is an updated fall zone which includes smaller masses which might be on the ground.

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@meteordoc

3 years

The latest edition of the @Makemagazine has an article about the #globalmeteornetwork - it explains how to build a #meteor camera and join the network: #DIY #Raspberry_pi #makers

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@meteordoc

2 years

Amazing story behind the discovery of #asteroid 2022 WJ1 which made the news and dropped #meteorites in Niagara a few months ago:

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@meteordoc

2 years

First tau Herculids were detected last night by the #globalmeteornetwork . The geocentric radiant was R.A. = 203.2°, Dec = 17.7 deg based on 17 orbits. The activity seems to be only starting - first detected on May 28, 19h UT with a ZHR ~ 0.3 and not dropping.

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@meteordoc

1 year

Meteor shower season is here! The next few weeks are the best time of year to be observing #meteors (unless you like the cold during the Geminids). Here is a night of detections from a #globalmeteornetwork camera in #NewZealand . Via @FireballsNZ Credit: Craig Young

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@meteordoc

1 year

Just in time for the #Perseids , we're releasing a new website showing the real-time meteor shower activity as measured by the #globalmeteornetwork . Link:

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@meteordoc

2 years

It came on an asteroidal orbit and entered the atmosphere at 14.2 km/s. The observed portion of the trajectory covered over 300 km. If any meteorites did fall, they ended up in the ocean.

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@meteordoc

4 years

Bright flash caused by a fireball in Ohio this morning (Sept 30, 10:24:47 UTC) caught by one #globalmeteornetwork camera. Unfortunately it was below the field of view of this camera, will post more images once we have them. @amsmeteors @BadAstronomer @westernuSpace

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@meteordoc

2 years

Was the 1908 Tunguska airburst a part of the Taurid complex? This campaign might help us find out. More info:

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Denis Vida

@meteordoc

3 years

The #globalmeteornetwork software was used by a team from #France to track the unique #meteor shower outburst caused by the #comet 15P/Finlay. Check out the cool images they took:

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Denis Vida

@meteordoc

4 years

Possible small meteorite fall in Belgium on January 22. The fall happened just before sunrise when all #globalmeteornetwork cameras already saturated, but FRIPON got it (in French):

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Denis Vida

@meteordoc

4 years

(1/4) An English summary of the AICAS press release about the Nov 19 fireball (original in Czech: ) "A ~270 kg meteoroid entered the atmosphere at 14 km/s at a very low elevation angle, lasted 24 seconds during which it traversed 290 km."

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Denis Vida

@meteordoc

4 years

And even more Quadrantids from New Mexico last night! At least several hundred orbits are expected to be computed from this data set. See more observations by the New Mexico group here: @BOAM_meteore @BadAstronomer @amsmeteors

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Denis Vida

@meteordoc

3 years

Over 120 sprites recorded last night by a #globalmeteornetwork camera in Hum, #Croatia . Credit: Aleksandar Merlak #redsprite #lightning #storm #meteor #tle

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Denis Vida

@meteordoc

3 years

How to make a #DIY meteor🌠 camera and help #science better understand the Solar System? Our instructions were featured in the @make magazine's year in review - check out the full article below!

Raspberry Pi Meteor Camera

Build your own fireball tracker and become a citizen scientist in the Global Meteor Network.

makezine.com

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Denis Vida

@meteordoc

4 years

A video compilation of meteors recorded by the Canadian Automated Meteor Observatory's tracking system. @WesternU @westernuScience @westernuPhysAst #meteors

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Denis Vida

@meteordoc

1 year

See our latest paper on the Golden #meteorite in #Canada which fell into a bed, inches away from the head of Ruth Hamilton who was asleep at the time:

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Denis Vida

@meteordoc

2 years

(1/5) Our @ScienceAdvances paper about the Winchcombe #meteorite is out! Here's a summary of my contribution with regards to the trajectory and the #fireball modelling...

The Winchcombe meteorite, a unique and pristine witness from the outer solar system

Rapid analysis of a meteorite from an asteroid reveals the primitive composition of volatiles in the early Solar System.

www.science.org

Oxford Earth Sciences

@OxUniEarthSci

2 years

Over 120 scientists have been brought together in this @ScienceAdvances paper to report on the first scientific findings of the #Winchcombe #meteorite . You can find out more about the @UniofOxford ( @OxfordPhysics and @OxUniEarthSci ) roles here:

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34

Denis Vida

@meteordoc

4 years

250x timelapse of the peak of the Geminids (1 video frame = ~10 seconds)

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31

Denis Vida

@meteordoc

2 years

Where did meteorites from #SAR2667 / #2023CX1 land? See this analysis:

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Denis Vida

@meteordoc

3 years

Wonder how a bird migration looks like through a meteor camera? Here it is from Chamberlain, South Dakota. #birdmigration #southdakota #birds @ztresearch

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33

Denis Vida

@meteordoc

1 year

(1/n) In our new @IcarusJournal paper we do the first-ever holistic modelling of #meteors (Orionids), explaining the light curve, deceleration, and the wake! ☄️ We also measure accurate densities, full paper: Paper summary in the thread below 🧵👇

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Denis Vida

@meteordoc

2 years

An outburst of a new meteor shower 18-Aquariids was observed by #globalmeteornetwork cameras. The peak occured around sol = 143.7° (ZHR ~10) at R.A. = 325.1°, Decl = -11.5°, Vg = 24.0 km/s. The dispersion is very narrow (~0.3°), indicating a young age of the stream.

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8

32

Denis Vida

@meteordoc

4 years

A new feature of the #globalmeteornetwork software - a "track and stack" script which shows meteors showers against a static sky background. Here are this year's #Persieds , note the Milky way! Credit: Aleksandar Merlak @BadAstronomer @IMOmeteors

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Denis Vida

@meteordoc

4 years

Last night's fireball (7:30 PM) as seen by our @WesternU ASGARD cameras. It lasted ~5 seconds, began at 95 and ended at 36 km. @westernuScience @ScottWx_TWN @amsmeteors

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