Near-Earth objects and close calls

[Vulcan59]

Meanwhile over at NASA, they are talking about planetary defence!

Should Planetary Defence Take Center Stage?

Before we can defend ourselves from a catastrophic asteroid impact, we have to know where the asteroids are.

www.universetoday.com

 

[Ca.]

https://twitter.com/x/status/1608110928993849345

https://twitter.com/x/status/1608149346998009856

UK Meteor Network Archive

Meteor Observation Data

archive.ukmeteornetwork.co.uk

https://twitter.com/x/status/1608425279000838148

https://twitter.com/x/status/1559857627194134529

Abstract

There is an unceasing incoming flux of extraterrestrial materials reaching the Earth atmosphere. Some of these objects produce luminous columns when they ablate during the hypersonic encounter with air molecules. A few fireballs occur each year bright enough to be detected from space. The source of these events is still a matter of debate, but it is generally accepted that they are of sporadic origin. We studied the NASA-JPL Center for NEOs Studies (CNEOS) fireball database to infer the dynamic origin of large bolides produced by meter-sized projectiles that impacted our planet. These likely meteorite-dropping events were recorded by the US Government satellite sensors. We estimated the false-positive rate and analyzed the time evolution of multiple orbit dissimilarity criteria concerning potential associations with near-Earth objects and meteoroid streams. We found that at least 16% of the large bolides could be associated with meteoroid streams, about 4% are likely associated with near-Earth asteroids, and 4% may be linked to near-Earth comets. This implies that a significant fraction of meter-sized impactors producing large bolides may have an asteroidal or cometary origin. In addition, we found at least three bolides having hyperbolic orbits with high tensile strength values. Meter-sized meteoroids of interstellar origin could be more common than previously thought, representing about 1% of the flux of large bolides. The inferred bulk physical properties suggest that the interstellar medium could bias these projectiles toward high-strength rocks with the ability to survive prolonged exposure to the harsh interstellar space conditions.

NASA's Picture of the Day

APOD: 2022 December 24 - Comet 2022 E3 ZTF

A different astronomy and space science related image is featured each day, along with a brief explanation.

apod.nasa.gov

Explanation: Comet C/2022 E3 (ZTF) was discovered by astronomers using the wide-field survey camera at the Zwicky Transient Facility this year in early March. Since then the new long-period comet has brightened substantially and is now sweeping across the northern constellation Corona Borealis in predawn skies. It's still too dim to see without a telescope though. But this fine telescopic image from December 19 does show the comet's brighter greenish coma, short broad dust tail, and long faint ion tail stretching across a 2.5 degree wide field-of-view. On a voyage through the inner Solar System comet 2022 E3 will be at perihelion, its closest to the Sun, in the new year on January 12 and at perigee, its closest to our fair planet, on February 1. The brightness of comets is notoriously unpredictable, but by then C/2022 E3 (ZTF) could become only just visible to the eye in dark night skies.

Flashback:

https://twitter.com/x/status/1605718797549064192

 

[sToRmR1dR]

A bright fireball lit up the night sky over the Jaén, Spain.

Published on Jan 6, 2023 (1:50)

 

[Ca.]

https://twitter.com/x/status/1609571272442118144

During the last hours of 2022, there were very good minutes to observe comet C2020 V2 ZTF. The following sequence was obtained from the TGS telescope of the @Observatori of Pujalt, and it is an hour of obtaining images with photometric filter g'. @Josep_Trigo @PepeChambo

https://twitter.com/x/status/1609263368585580546

From @iSpaceSci @IEEC_space the statistics of our database #SPMN2022
January 180
Feb 81
Mar 61
Apr. 127
May. 173
Jun 125
Jul 155
Aug 330
Sept. 145
Oct 220
Nov 326
Dec 220
Total 2143 cars

2023 Quadrantid meteor shower to peak January 3-4​

The Night Sky January 2023 | Comet ZTF Gets Close to Earth | Quadrantids Meteor Shower | C/2022 E3

Details:

A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu - Nature Astronomy

A close-up look at the action of space weathering on carbonaceous asteroids, provided by Ryugu’s returned samples, highlights its role on the dehydration of the first micrometre-thick layer of the surface, possibly hiding a water-rich interior. The depth of the 2.7 µm hydration band may be an...

www.nature.com

https://twitter.com/x/status/1607740042893578240

 

[Eboard10]

A bright fireball was seen across Northern Italy around 18:36 on 5th January. As reported by the Italian meteor surveillance network Prisma, and described in this Italian article, the fireball was first spotted at a height of 71km, reaching a speed of 17 km/s while descending down to 37km above the Earth's surface.

Here's a tweet with a video capturing the meteor as it crosses the skies of Varese, a city north-west of Milan.

https://twitter.com/x/status/1611067177699840008

 

[Nević Nenad]

Is this IT? Are they prepairing the public for the second Sun?

A comet not seen in 50,000 years is coming. Here's what you need to know

This may very well be the last time that C/2022 E3 comes our way again.

www.space.com

 

[Cosmos]

Is this IT?

Maybe or maybe not.

Are they prepairing the public for the second Sun?

That’s pretty unlikely according to the C‘s:

(Joe) Oh yeah... Just this past September, there was a very prestigious and well-thought-of English astronomer from Oxford. He was a quiet guy who was at the observatory in Chile. He'd gone there many times. This September he went there and they were gonna do their usual tour or whatever. After the first night I think, basically one or two nights after he was there, he went missing. He was missing for 50 days. He was only found in November a few kilometers away. It's like a desert in Chile. That's why they have these telescopes there. But according to the PhD student that was with him, he reportedly said to the police that the professor guy said something very bizarre to him. Then he criticized him for not being as dedicated to the cause as he should be. That was the day before he went missing. So, he just disappeared. And he was found 50 days later partly clothed and dead in the desert. It was talked about by David Paulides as a Missing 411 case. I was wondering if that's what it was, or...?

A: Yes

Q: (Joe) Was it just random?

A: No

Q: (Joe) It had something to do with the research he was involved in?

A: Yes

Q: (Joe) He focused specifically on binary star systems.

A: Yes

Q: (Joe) I was wondering if he maybe had come up with some theory about a twin sun being...?

A: Yes

Q: (Niall) Did he observe something?

A: Yes!!

Q: (Joe) And that was the "bizarre" thing that the student said to him?

A: Yes

Q: (Joe) So he was basically silenced by...

A: Yes

Q: (Joe) Does that mean we're gonna see some stuff soon?

A: Yes. Oh yes!

(Joe) If our twin sun is relatively soon to be visible, what's it gonna... be called? [laughter]

(L) You're worried about what it's going to be CALLED?! [laughter]

(Joe) No, I mean what are they gonna say about it? What would be the explanation for it? Are they gonna say it's a twin sun, or a comet, or... Maybe that's asking too much.

A: Probably will call it a giant comet or the flaring of same.

Q: (Andromeda) So what's it gonna look like?

A: Won't look like much to anyone but astronomers.

Q: (Pierre) I thought Nemesis was a brown dwarf? If it's a brown dwarf, it's unlike a giant comet... It's way dimmer.

A: Can ignite when connected to the circuit.

Q: (Niall) So there could be flaring. They won't be lying about that part.

(Pierre) And it'll look like a comet. A biggy.

 

[Ca.]

https://twitter.com/x/status/1609633808839491585

Wednesday, January 11th 2023 around 00:46 UT.

This video has been uploaded on the American Meteor Society Website. AMS Event: 172-2023, Report 300505 (172mf-2023) Marble Falls, Texas, US This video may not be related to a fireball event. More info: American Meteor Society

https://twitter.com/x/status/1612744188847595522

American Meteor Society

We received 590 reports about a fireball seen over England, Hauts-de-France, Vale, Vlaams Gewest, Wales, Zeeland and Zuid-Holland on Monday, January 9th 2023 around 20:02 UT.

ams.imo.net

https://twitter.com/x/status/1610957258397212675

List of asteroid close approaches to Earth in 2022 - Wikipedia

en.wikipedia.org

List of asteroid close approaches to Earth - Wikipedia

en.wikipedia.org

 

[sToRmR1dR]

A bright fireball lit up the night sky over the Córdoba, Spain.

Published on Jan 11, 2023 (1:49)

 

[Eboard10]

A fireball with absolute magnitude of -8.5 was spotted in the skies of northern Italy on January 10 around 23:09 local time by the PRISMA network as well as by a French FRIPON camera in Corsica.

The fireball was first spotted at an altitude of 86 km moving at an initial speed of 25 km/s in a northwesterly direction before extinguishing at 35 km of altitude near La Spezia in the Liguria region.

 

[Ca.]

https://twitter.com/x/status/1614132647621545984

Scott gives us a great update showing the latest changes to the sun's activity and forecast and what to expect over the next two years. Solar flux Index has hit 200 in the last day and with what is coming around the corner on the sun's surface, we should expect to see maybe a lot higher SFI - maybe some F2 propagation along with TEP on 6 meters. The lower bands are now staying open even longer each day.

December 2022 Fireballs
Snip: Observations with charts and last years #meteor tally.
By YOWUSA.COM

Fireballs are reported worldwide, and the American Meteor Society, the primary source for North America, for this dataset.
AMS Multistate / Country Fireballs


Multistate/country fireballs cross the borders of multiple states and countries. For this reason, this is a critical category in the dataset because of the distance these fireballs must travel to receive reports from across large geographic areas.

https://twitter.com/x/status/1613754926299217922

https://twitter.com/x/status/1613568958065696768

Lex Fridman interviews Konstantin Batygin of Caltech and discusses the hypothesis of Planet Nine.

Konstantin Batygin: Planet 9 and the Edge of Our Solar System | Lex Fridman Podcast #201
Jul 19, 2021 RT 2:39:20 Highlights

1:00:10 - What is Planet Nine?
1:06:39 - The origin of life
1:09:03 - Evidence of Planet Nine
1:11:33 - Discovery of Neptune
1:12:43 - When will we find Planet Nine?

https://twitter.com/x/status/1612473743141380097

https://twitter.com/x/status/1614081942420348929

SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids

 

[Ca.]

https://twitter.com/x/status/1614453659953434625

https://twitter.com/x/status/1554452217373007872

https://twitter.com/x/status/1614144755293716481

IMPRESSIVE BOLIDO #SPMN130123F RECORDED LAST NIGHT OFF THE COAST OF #MÁLAGA at 19h26m08s TUC. Antonio J. Robles
@AJ_Robles captured it while flying over the Alboran Sea and creating this curious "collision" perspective. Go to the list: http://spmn.uji.es/ESP/SPMNlist.html

https://twitter.com/x/status/1614503935540350981

32 celestial bodies will pass near the Earth within a week. Three of them pass within 10 LD (10 times the Moon-Earth distance). The closest is asteroid 2023 AH, closest approach at 09:35 UTC on Jan 15 at a distance of 1.84 LD. Orbital diagram: http://lizard-tail.com/isana/orbview/?mode=asteroid&asteroidcloud=false&center=Earth&t=20230115093500&distance=0.023668018760929152&target=2023_AH List:

 

[sToRmR1dR]

A bright fireball streaked through the night sky over the Gulf of Cádiz, Spain.

Published on Jan 16, 2023 (1:54)

 

[sToRmR1dR]

Bright fireball captured streaking in the sky above Spain and Morocco.

Published on Jan 18, 2023 (2:08)

 

[sToRmR1dR]

A bright fireball lit up the night sky over the Valencia, Spain.

Published on Jan 19, 2023 (1:45)