Re: Off topic - close encounter of the asteroid kind

Hi David

I guess probably not.
The closest approach to Earth of 2019 AS5 was Jan. 8th at around 1h UT.
The fireball you mentioned was Jan. 9th at around 12 UT.
In the time between the two events (35 hours), Earth travelled more than 3.7 
million km (at 30 km/sec) around the Sun.
That's a very very large distance for being a companion.

Kind greetings

Dirk Devlies

-----Oorspronkelijk bericht----- 
From: David Tiller via Seesat-l
Sent: Friday, January 11, 2019 11:08 PM
To: Kevin Fetter
Cc: seesat-l_at_satobs.org
Subject: Re: Off topic - close encounter of the asteroid kind

I wonder if the fireball that was seen along the east coast around 11:35Z 
Jan 9th was a companion object.

> On Jan 11, 2019, at 07:35, Kevin Fetter via Seesat-l <seesat-l_at_satobs.org> 
> wrote:
>
> Incase anyone had seen a unid.
> From spaceweather.com
>  CLOSE ASTEROID FLYBY: On Jan. 8th, asteroid 2019 AS5 flew past Earth only 
> 8600 km above our planet's surface. Nine hours after the flyby, it was 
> discovered by the the Mt. Lemmon Survey telescope in Arizona. If the 1 to 
> 2 meter-wide space rock had hit Earth (and it almost did) it would have 
> caused a brilliant fireball in the atmosphere with sonic booms and 
> scattered meteorites on the ground--but no serious damage. Earth's gravity 
> significantly bent the asteroid's orbit during the flyby. Free: SWx 
> Newsletter.
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