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Showing posts with label impact. Show all posts
Showing posts with label impact. Show all posts

Nov 12, 2019

NASA-JPL Released Episode 6, Heavy Metal, of Season Two of 'On a Mission' Podcast Targets Asteroids

This artist's concept shows a broken-up asteroid.
ImageCourtesy NASA/JPL-Caltech

Today[2019-11-12] NASA-JPL released Episode 6 "Heavy Metal" of Season Two of 'On a Mission' Podcast Targets Asteroids. "Asteroids, ho! Pioneering space miners dream of Psyche, the largest metal asteroid in the solar system. " This is the 5th of a 10-episode podcast host by Leslie Mullen. New episodes will be released weekly. For more information, see "Season Two of 'On a Mission' Podcast Targets Asteroids"[NASA JPL press release].

Nov 5, 2019

NASA-JPL Released Episode 5 Catch a Falling Star of Season Two of 'On a Mission' Podcast Targets Asteroids

This artist's concept shows a broken-up asteroid.
ImageCourtesy NASA/JPL-Caltech

Today[2019-11-05] NASA-JPL released Episode 5 "Catch a Falling Star" of Season Two of 'On a Mission' Podcast Targets Asteroids. "Why are missions like OSIRIS-REx bringing pieces of an asteroid back home?" This is the 5th of a 10-episode podcast host by Leslie Mullen. New episodes will be released weekly. For more information, see "Season Two of 'On a Mission' Podcast Targets Asteroids"[NASA JPL press release].

Oct 29, 2019

NASA-JPL Released Episode 4 [Deflecting Disaster] of Season Two of 'On a Mission' Podcast Targets Asteroids

This artist's concept shows a broken-up asteroid.
ImageCourtesy NASA/JPL-Caltech

Today[2019-10-29] NASA-JPL released Episode 4 [Deflecting Disaster] of  Season Two of 'On a Mission' Podcast Targets Asteroids. "Unlike the dinosaurs, we have a space program. There are many ways we could steer an asteroid off its path towards Earth.? " This is the 4th of a 10-episode podcast host by Leslie Mullen. New episodes will be released weekly. For more information, see "Season Two of 'On a Mission' Podcast Targets Asteroids"[NASA JPL press release].

Oct 23, 2019

NASA-JPL Released Episode 3[Bracing For A Crash] of Season Two of 'On a Mission' Podcast Targets Asteroids

This artist's concept shows a broken-up asteroid.
ImageCourtesy NASA/JPL-Caltech
This week NASA-JPL released Episode 3[Bracing For A Crash] of Season Two of 'On a Mission' Podcast Targets Asteroids. "[What] [i]f a big asteroid is heading our way, how does NASA prepare for the oncoming disaster? " This is the 3rd of a 10-episode podcast host by Leslie Mullen. New episodes will be released weekly. For more information, see "Season Two of 'On a Mission' Podcast Targets Asteroids"[NASA JPL press release].

Oct 18, 2019

NASA-JPL Released Episode 2[Impact] of Season Two of 'On a Mission' Podcast Targets Asteroids

This artist's concept shows a broken-up asteroid.
ImageCourtesy NASA/JPL-Caltech
This week NASA-JPL  released Episode 2[Impact] of Season Two of 'On a Mission' Podcast Targets Asteroids. This is the 2nd of 10-episode podcast host by Leslie Mullen. New episodes will be released weekly. For more information, see "Season Two of 'On a Mission' Podcast Targets Asteroids"[NASA JPL press release].

Oct 12, 2019

NASA-JPL Released Season Two of 'On a Mission' Podcast Targets Asteroids

This artist's concept shows a broken-up asteroid.
ImageCourtesy NASA/JPL-Caltech
On October 8, 2019, NASA JPL released the first episodes of  Season Two of 'On a Mission' Podcast Targets Asteroids -- "The Sky Is Falling," This is first of 10-episode podcast host by Leslie Mullen. New episodes will be released weekly. For more information, see "Season Two of 'On a Mission' Podcast Targets Asteroids"[NASA JPL press release].



Jun 3, 2018

A Rock Designated ZLAF9B2(now 2018 LA) Social Media and Fireball Reports

On  2018-06-02 Richard A. Kowalski, with the Catalina Sky Survey reported observations of a "new" object, given  the observ3er-assigned temporary designation "ZLAF9B2", to  Minor Planet Center in Cambridge, Massachusetts, USA.  It was posted to the NEOCP(NEO Confirmation Page) making the observations available to asteroid and comet  researcher around the world.   The data was analyzed and posted JPL's Scout: NEOCP Hazard Assessment, independently analyzed and posted to Bill Gray's  Current NEOCP summary page. Then emails  to mailing list post to social madia started going out. It was know to be small at the start.

When wroke up on 2018-06-02 I check iTelescope.net and saw their facility in Siding Spring Observatory, AU was clouded out than I went out to eat breakfast.  When got back just to see what I would observe if I could observe, I check the NEOCP and saw that ZLAF9B2 was "bright",  and  then  check "The Minor Planet Mailing List {MPML}" Some of the asteroid and comet researchers where talking.  The Bill Gray sent and a number of  carefully worded emails to email list  stating ZLAF9B2 should be a "Priority Target".
 
One of the programs available to asteroid and comet researchers is Find_Orb it is useful for calculating approximate ephemeris, determining approximate orbits, residuals,  generating virtual asteroids, virtual impactors, predicting impact locations, and many other things.  It should be noted  IF one uses wrong setting one get a totally wrong solution. One things Find_Orb can be use for is generating a "asteroid risk corridor" with the help of Guide 9.1. This should be done with care because of uncertainties in  observations how one sets the over-observing parameters as well with other setting can the effect the results.  Bill Gray posted post a risk corridor for ZLAF9B2 and I thought I would give it a try. I had Find_Orb generated  virtual asteroids and virtual impactors using a  monte carlo process. 


Here is my TEST with Find_Orb using a monte carlo process see the files here

Here is my TEST with Find_Orb using a monte carlo process see the files here
Before I share my results ZLAF9B2(now 2018 LA)  "impacted" the Earth over southern Africa creating a Fireball. around 2018-06-02 16:45 UT and posts about impact started making.  After the impact two (pre-impact) follow up observations from ATLAS-MLO(Asteroid Terrestrial-impact Last Alert System ---Mauna Loa) were posted to  the NEOCP(NEO Confirmation Page)  Then I did another  monte carlo process with the newly added ATLAS observations.

Test with the newly added ATLAS observations with Find_Orb
 using a monte carlo process see the files here
On 2018-06-04  the Minor Planet Center issues MPEC 2018-L04 : 2018 LA  Stating
"that the objectreached 50-km height above the Earth's surface around 16:51 UTC over southern Africa."

Timeline of SOME of the Post to Social Media