Denis Vida
@meteordoc.bsky.social
Meteor physics postdoctoral researcher @westernu
. Software engineer turned astronomer. Building a global network of video meteor cameras #globalmeteornetwork
. Software engineer turned astronomer. Building a global network of video meteor cameras #globalmeteornetwork
Reposted by Denis Vida
UPDATE on our new interstellar friend #A11pl3Z:
Citizen scientist Sam Deen has found earlier observations of from June 25-28, from the ATLAS telescope!
Now with 6 days' worth of data, the eccentricity of A11pl3Z's trajectory is narrowed down to e=10.4 ± 1.1!
... that's undoubtedly interstellar.
🔭☄️
Citizen scientist Sam Deen has found earlier observations of from June 25-28, from the ATLAS telescope!
Now with 6 days' worth of data, the eccentricity of A11pl3Z's trajectory is narrowed down to e=10.4 ± 1.1!
... that's undoubtedly interstellar.
🔭☄️
July 2, 2025 at 2:37 AM
UPDATE on our new interstellar friend #A11pl3Z:
Citizen scientist Sam Deen has found earlier observations of from June 25-28, from the ATLAS telescope!
Now with 6 days' worth of data, the eccentricity of A11pl3Z's trajectory is narrowed down to e=10.4 ± 1.1!
... that's undoubtedly interstellar.
🔭☄️
Citizen scientist Sam Deen has found earlier observations of from June 25-28, from the ATLAS telescope!
Now with 6 days' worth of data, the eccentricity of A11pl3Z's trajectory is narrowed down to e=10.4 ± 1.1!
... that's undoubtedly interstellar.
🔭☄️
Reposted by Denis Vida
got interviewed about our paper on 2022 WJ1 by space dot com: www.space.com/the-universe...
'It's like taking a picture of lightning': How astronomers raced to track the smallest asteroid ever seen
"Without question, it was the most exciting hour of my job that I’ve ever had."
www.space.com
December 5, 2024 at 6:49 PM
got interviewed about our paper on 2022 WJ1 by space dot com: www.space.com/the-universe...
Reposted by Denis Vida
for the first time, we were able to compare telescopic observations of an asteroid to later fireball camera observations of it as it burned up -- both techniques agree really well: *2022 WJ1 was the smallest asteroid ever characterized in space*. [woo-hoo!]
November 22, 2024 at 10:19 PM
for the first time, we were able to compare telescopic observations of an asteroid to later fireball camera observations of it as it burned up -- both techniques agree really well: *2022 WJ1 was the smallest asteroid ever characterized in space*. [woo-hoo!]
Reposted by Denis Vida
out today in the planetary science journal: "Telescope-to-Fireball Characterization of Earth Impactor 2022 WJ1" lead by yours truly. many thanks to my incredible coauthors, especially @meteordoc.bsky.social in the #2 spot, for making this study possible. iopscience.iop.org/article/10.3...
November 22, 2024 at 10:19 PM
out today in the planetary science journal: "Telescope-to-Fireball Characterization of Earth Impactor 2022 WJ1" lead by yours truly. many thanks to my incredible coauthors, especially @meteordoc.bsky.social in the #2 spot, for making this study possible. iopscience.iop.org/article/10.3...
In our new paper on #arxiv, we measure the density and structural composition of mm-sized meteoroids and find that cometary dust arriving on Earth is fluffer than we thought! #astronomy #meteors
arxiv.org/abs/2312.00897
arxiv.org/abs/2312.00897
A Physical Survey of Meteoroid Streams: Comparing Cometary Reservoirs
In this work, we present an optical survey of mm-sized meteoroids using the Canadian Automated Meteor Observatory's (CAMO) mirror tracking system. The system tracks meteors to magnitude +7.5...
arxiv.org
December 5, 2023 at 4:40 PM
In our new paper on #arxiv, we measure the density and structural composition of mm-sized meteoroids and find that cometary dust arriving on Earth is fluffer than we thought! #astronomy #meteors
arxiv.org/abs/2312.00897
arxiv.org/abs/2312.00897
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: arxiv.org/abs/2310.17822
#astronomy
#astronomy
November 3, 2023 at 8:50 PM
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: arxiv.org/abs/2310.17822
#astronomy
#astronomy
Reposted by Denis Vida
Today's space plot: distribution of orbital heights for cataloged objects currently in Low Earth Orbit, by object type (Starlink is offscale high here). X axis is height in km
October 20, 2023 at 5:00 AM
Today's space plot: distribution of orbital heights for cataloged objects currently in Low Earth Orbit, by object type (Starlink is offscale high here). X axis is height in km
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
October 10, 2023 at 2:28 PM
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
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
October 4, 2023 at 9:13 PM
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