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Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1

 
Dr. AstroModerator
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Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1

[link to www.youtube.com (secure)]
As promised, here's the link to the webcast for tonight, which will start at midnight eastern time (4:00 UT) provided the weather allows. Clear sky clock is showing a clear forecast for tonight.

Asteroid 2015 TB145 has a peculiar elliptical and inclined orbit which has caused some to speculate as to whether it's the dormant husk of a comet which has run out of volatile ices. Even if so, any meteoroids from this object's history are still expected to miss earth by about 100,000 km. If they do hit us and cause a meteor shower, the shower's radiant would be in the constellation Eridanus and it would be best seen from Asia.
[link to www.seti.org]

Here are some charts of the asteroid's location from various locations throughout the US. All times shown are local times. Here's a view with Starry Night Pro showing the path the asteroid will take as seen from Denver, Colorado:


Here is Miami, Florida:


And here is Los Angeles, California:


Reality420 also provided the following directions for anyone who wants to load the asteroid's orbit into Stellarium to create more precise charts, with the caveat that Stellarium will not calculate the perturbation of the orbit over time due to earth's gravity.
Dr. Astro,

Hope the show goes well on Saturday morning.

For those who use Stellarium and don't know how to import the asteroid's elements or who are using an ancient version (like me) here's the data and how to get it to work:

[2015 TB145]
name = TB145
parent = Sun
radius = 50
oblateness = 0.0
albedo = 0.99
lighting = true
orbit_visualization_period = 200.0
halo = true
color = 1.0,1.0,1.0
tex_halo = star16x16.png
tex_map = deimos.png
coord_func = comet_orbit
# Orbit els for 2015-Oct-31 16:30
# sourced Oct 30 2015
# orbit_Epoch = 2457327.187500000
orbit_TimeAtPericenter = 2457368.115112533793
orbit_PericenterDistance = 0.2940799451166227
orbit_Eccentricity = 0.8606976945877151
orbit_ArgOfPericenter = 121.6120425580749
orbit_AscendingNode = 37.73243512693168
orbit_Inclination = 39.71196288935560


For Windows -
- Go to the Stellarium program folder
- Go to the data subfolder
- In there you will find a file named: ssystem.ini
(You can just search for the file - ssystem.ini and copy/modify the search result)
- Make a copy of ssystem.ini and put it in a safe place in your MyDocuments folder in case something goes wrong.
- Open ssystem.ini in the subfolder with notepad or any text editor
- Go to the bottom of the list of entries in the ssystem.ini file
- Skip a line and Copy/paste the above bolded entry at the bottom.
- Save the modified ssystem.ini file in its original location.

Start Stellarium
Advance the date/time to around Oct 31 1:00AM local time
Tap F3 to bring up the Stellarium Search
Enter tb145 (it should show as a possibility)
Hit enter to center the asteroid.

You can now click through/play with the times to see about where it will be at the displayed time.
Note that it hangs out just north of Orion's shield for most of Dr. Astro's viewing time which will probably end ~6:00AM EDT.

I chose the epoch as Oct 31 @16:30UT which is near the point of greatest perturbation and also within hours of the viewing session Dr. Astro has planned.
As far as I know Stellarium does not perturb the orbit so the position will become more in error the further you get from 16:30UT either way but for a one-shot, very close is good enough, it will be ok.

When the event is done, merely reopen the ssystem.ini file and delete the text for the asteroid you just entered and resave to restore Stellarium to the original config.

Have fun.


R420
 Quoting: Reality420


Tonight I will be tracking the asteroid directly using a new program I wrote to provide continuous tracking of near earth asteroids just like this one. It uses ephemeris files generated from FindOrb, which does account for the gravity of earth, the moon, and the planets, and it converts it to a series of continuous slewing commands and sends it to the telescope. The program is currently in a prototype version, but the final version will be universally compatible with all ASCOM compatible telescopes. More information about the software will be available in the near future.

Last Edited by Astromut on 10/31/2015 08:09 AM
astrobanner2
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Is SOme peOplE GoNna DiE?
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
What do you do for living Astro?
I imagine your gear must cost a fortune.

Your work is appreciated. hf
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Thanks abduct
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
woohoo

I mean...

ahhh
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Thanks Doc! look forward to it!!
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
What do you do for living Astro?
I imagine your gear must cost a fortune.

Your work is appreciated. hf
 Quoting: Anonymous Coward 69274008


DA grinds tards into a fine powder, then sells that powder as fertilizer.

Business is good.

chill
Dr. AstroModerator  (OP)
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


No, it's not. I've run the calculations, it will miss by over 480,000 km.
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Luke 17:20
King James Bible
And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation:


Many desire it to though, but if it did, just think about what terror it will bring to those who are not of faith. <3
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Thanks for the update Doc.

What day/time exactly is it supposed to make the pass...? Forgive me if it's listed and I just didn't see it.

Thanks!
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


No, it's not. I've run the calculations, it will miss by over 480,000 km.
 Quoting: Dr. Astro


I'm here at GLP for few weeks only, but I admire your patience Dr.

And many thanks for webcast ;-)
“In a time of universal deceit, telling the truth is a revolutionary act.” - George Orwell
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


No, it's not. I've run the calculations, it will miss by over 480,000 km.
 Quoting: Dr. Astro


You do realize that distance in terms if space is equivalent to the distance between Obama and a line of coke, right?

It is negligible and one tiny deviation can be brought about by a myriad of conditions. One deviation is all it takes.

Can you prove a deviation will not be occurring? Of course you can't. Don't speak such absolutes.
Prophet Daniel

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10/30/2015 12:10 PM
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Hi Astro,
how far from the Moon at the closest approach to it?
“THE LIPS OF WISDOM ARE CLOSED, EXCEPT TO THE
EARS OF UNDERSTANDING” Kybalion
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10/30/2015 12:12 PM
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Nothing will happen
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Nothing will happen
 Quoting: Anonymous Coward 70680501


Depends on what you're expecting to happen.
A fly by will happen.
Dr. AstroModerator  (OP)
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


No, it's not. I've run the calculations, it will miss by over 480,000 km.
 Quoting: Dr. Astro


You do realize that distance in terms if space is equivalent to the distance between Obama and a line of coke, right?

It is negligible and one tiny deviation can be brought about by a myriad of conditions. One deviation is all it takes.

Can you prove a deviation will not be occurring? Of course you can't. Don't speak such absolutes.
 Quoting: Anonymous Coward 70687883


Any impact on the asteroid that could produce a "deviation" that large given the object's incredibly high momentum and incredibly high velocity would naturally destroy it.
astrobanner2
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Maybe we the "Snooker effect"
“THE LIPS OF WISDOM ARE CLOSED, EXCEPT TO THE
EARS OF UNDERSTANDING” Kybalion
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Looking forward to it!

five stars
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Hi Astro,
how far from the Moon at the closest approach to it?
 Quoting: Prophet Daniel


About 286,000 km.
astrobanner2
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


No, it's not. I've run the calculations, it will miss by over 480,000 km.
 Quoting: Dr. Astro


Many taxi have that millage , its not so uncommon .
So the distance results is 1 average taxi millage ....Im i correct doc? scratching


btw is that you?


[link to twitter.com (secure)]
 Quoting: Anonymous Coward 70682573


Bros don't leak personal information of bros you fucking asshat.
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Nothing will happen
 Quoting: Anonymous Coward 70680501


Depends on what you're expecting to happen.
A fly by will happen.
 Quoting: Anonymous Coward 69274008


Noob
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Can you prove a deviation will not be occurring? Of course you can't. Don't speak such absolutes.
 Quoting: Anonymous Coward 70687883


Math is a harsh mistress, dumbass.

And she's beating your behind right now, and probably forever.

spank
Dr. AstroModerator  (OP)
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Thanks for the update Doc.

What day/time exactly is it supposed to make the pass...? Forgive me if it's listed and I just didn't see it.

Thanks!
 Quoting: Quantum_Kev

17:00 UT or 1:00 pm eastern time.
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
The calculations say no doom, go home noobs.
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


No, it's not. I've run the calculations, it will miss by over 480,000 km.
 Quoting: Dr. Astro


You do realize that distance in terms if space is equivalent to the distance between Obama and a line of coke, right?

It is negligible and one tiny deviation can be brought about by a myriad of conditions. One deviation is all it takes.

Can you prove a deviation will not be occurring? Of course you can't. Don't speak such absolutes.
 Quoting: Anonymous Coward 70687883


Any impact on the asteroid that could produce a "deviation" that large given the object's incredibly high momentum and incredibly high velocity would naturally destroy it.
 Quoting: Dr. Astro

Can you offer data proving such destruction would happen?

Can you offer up the math showing that an impact would have to be large enough to destroy it?

Also please note that English is not my first language. Is deviation not the correct terminology for this conversation or is there other reasons for the quotation marks?
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


I concur with my colleagues assertion.
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Can you prove a deviation will not be occurring? Of course you can't. Don't speak such absolutes.
 Quoting: Anonymous Coward 70687883


Math is a harsh mistress, dumbass.

And she's beating your behind right now, and probably forever.

spank
 Quoting: WeaponX2

Do you know what variables are?
In physics everything can be considered variable.
kgblol

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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
I think it's more likely to shoot Halloweenie ghosts at us than hit us!

5a

Can't wait to watch!
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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
its going to hit earth, ive already run the calculations
 Quoting: Anonymous Coward 57879903


I concur with my colleagues assertion.
 Quoting: Anonymous Coward 70682435


sockpuppet sockpuppet
WeaponX2

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Re: Asteroid 2015 TB145 Live Webcast - Thanks for Watching, Replay on Page 1
Can you prove a deviation will not be occurring? Of course you can't. Don't speak such absolutes.
 Quoting: Anonymous Coward 70687883


Math is a harsh mistress, dumbass.

And she's beating your behind right now, and probably forever.

spank
 Quoting: WeaponX2

Do you know what variables are?
In physics everything can be considered variable.
 Quoting: Anonymous Coward 70687883


Do you know what Planck's Constant is?

It's the value that proves you're an uneducated dolt.

dunce

Last Edited by WeaponX2 on 10/30/2015 12:26 PM





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