2004 XP14

[alokmohan]

XP I hope is not PHA?

 

[tony873004]

XP is definately a PHA.<br /><br />This is in response to some of the Apophis questions in this thread. This diagram shows 3 versions of Apophis as it approaches Earth in 2029. Earth is the blue circle in the center. The Moon's orbit is the gray trail. The maroon circle around Earth represents the orbit of a geosychronous satellite. The trajectory of Apophis is also maroon. If Apophis follows this trajectory, it will miss Earth by over 50 million kilometers in 2036. The purple trail is the trajectory of Apophis based on the February 2006 estimate. This shows you how the predictions changed based on the latest radar observations. The green trail represents the keyhole trajectory. If Apophis takes this route, it will collide with Earth in 2036. Note that the latest prediction has distanced Apophis from the keyhole trajectory which is why the odds of a 2036 collision were lowered.<br /><br />http://orbitsimulator.com/BA/apophis11.GIF<br /><br />This next image is the same thing, but zoomed in better highlight the differences between the 3 trajectories.<br /><br />http://orbitsimulator.com/BA/apophis12.GIF<br /><br />This next image shows what the 2029 Earth encounter will do Apophis' orbit. Prior to the 2029 encounter, Apophis is an Aten asteroid (asteroids with a semi-major axis of less than 1 AU). After the 2029 encounter, Apophis becomes an Apollo asteroid (asteroids with a a semi-major axis of greater than 1 AU and an Earth-crossing orbit).<br /><br />http://orbitsimulator.com/BA/apophis13.GIF

 

[Boris_Badenov]

Okay, how about Earth / Solar L4 or L5. The delta-v to get there is about the same as it is to get to the moon. Isn’t it? <div class="Discussion_UserSignature"> <font color="#993300"><span class="body"><font size="2" color="#3366ff"><div align="center">. </div><div align="center">Never roll in the mud with a pig. You'll both get dirty & the pig likes it.</div></font></span></font> </div>

 

[tony873004]

There's probably a bunch of undiscovered asteroids already in the Earth / Sun L4 & 5 points.

 

[alokmohan]

May I HOPE THE THREAT OF XP IS OVER.

 

[Boris_Badenov]

I have heard that theorized before, but the only thing that has been found so far has been a dust cloud. <div class="Discussion_UserSignature"> <font color="#993300"><span class="body"><font size="2" color="#3366ff"><div align="center">. </div><div align="center">Never roll in the mud with a pig. You'll both get dirty & the pig likes it.</div></font></span></font> </div>

 

[Boris_Badenov]

What are XP & PHA? <div class="Discussion_UserSignature"> <font color="#993300"><span class="body"><font size="2" color="#3366ff"><div align="center">. </div><div align="center">Never roll in the mud with a pig. You'll both get dirty & the pig likes it.</div></font></span></font> </div>

 

[alokmohan]

Potentially hazardous aster oid which passed us on 3rd July .Simply one example .Lot many hanging around.

 

[astrokid14]

Is there any way the asteroid can become a new moon?

 

[telfrow]

See this thread. <div class="Discussion_UserSignature"> <strong><font color="#3366ff">Made weak by time and fate, but strong in will to strive, to seek, to find and not to yeild.</font> - <font color="#3366ff"><em>Tennyson</em></font></strong> </div>

 

[alokmohan]

Seen your thread.2003YN 107 IS NEW MOON.But can we call it news moon.It was there ,we know it now.

 

[MeteorWayne]

Boris1961,<br /><br />XP 14 is the designation of the asteroid. From the MPC<br />( Minor Planet Center)<br /><br />http://cfa-www.harvard.edu/iau/info/OldDesDoc.html<br /><br /> "Letter Dates Letter Dates<br /> A Jan. 1-15 B Jan. 16-31<br /> C Feb. 1-15 D Feb. 16-29<br /> E Mar. 1-15 F Mar. 16-31<br /> G Apr. 1-15 H Apr. 16-30<br /> J May 1-15 K May 16-31<br /> L June 1-15 M June 16-30<br /> N July 1-15 O July 16-31<br /> P Aug. 1-15 Q Aug. 16-31<br /> R Sept.1-15 S Sept.16-30<br /> T Oct. 1-15 U Oct. 16-31<br /> V Nov. 1-15 W Nov. 16-30<br /> X Dec. 1-15 Y Dec. 16-31<br /><br /> I is omitted and Z is unused<br /><br />The order within the month is indicated using letters as follows: <br /> A = 1st B = 2nd C = 3rd D = 4th E = 5th<br /> F = 6th G = 7th H = 8th J = 9th K = 10th<br /> L = 11th M = 12th N = 13th O = 14th P = 15th<br /> Q = 16th R = 17th S = 18th T = 19th U = 20th<br /> V = 21st W = 22nd X = 23rd Y = 24th Z = 25th<br /><br /> I is omitted<br /><br />If there are more than 25 discoveries in any one half-month period, the second letter is recycled and a numeral `1' is added to the end of the designation. If more than 50 discoveries, the second-letter is again recycled, with a numeral `2' appended after the second letter. Discoveries 76-100 have numeral `3' added, numbers 101-125 numeral `4', etc. When possible, these additional numbers should be indicated using subscript characters. "<br /><br />Now something must have changed, since on various lists there, I see nu <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[Boris_Badenov]

Thank You <div class="Discussion_UserSignature"> <font color="#993300"><span class="body"><font size="2" color="#3366ff"><div align="center">. </div><div align="center">Never roll in the mud with a pig. You'll both get dirty & the pig likes it.</div></font></span></font> </div>

 

[idunno]

Hi there,<br /><br />I'm new to this not to the subject of science. I was reminded about the close flyby of 2004 xp14 when i was watching mega disasters re: asteriod impacts. Thats how I came to find this message board and the very nice orbit tracker i was using to peer into the future regarding this rocks trajectory. I was reading the posts and saw many referrences to a 2029 flyby. I went through the entire year however and found it's closest approach in that year, November28th @ 1.169 AU. The problem is that in 2019, January 4th that rock closes to 0.0718 AU. Far closer that any approach in 2029. Could you check on this since after reading some of your posts you seem well qualified to confirm my calculations. I would greatly appreciate it.<br /><br />Steve<br />"I have never let school get in the way of my education."<br /><br />

 

[idunno]

Hi there,<br /><br />In addition to the 2019 flyby there is another closer flyby in 2061 on July 1st. The rock closes to within 0.0501 AU.<br />Of course this may all be moot if in 2019, just 13 years from now, the rock comes so close that the orbit is dramatically altered positively or negatively. Any thoughts about this from guys and gals?<br /><br />Steve<br />"I have never let school get in the way of my education."<br /><br />

 

[Boris_Badenov]

Asteroid Apophis passes about 18,000 miles from Earth in 2029. <br />Welcome to the SDC Message Boards. <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <font color="#993300"><span class="body"><font size="2" color="#3366ff"><div align="center">. </div><div align="center">Never roll in the mud with a pig. You'll both get dirty & the pig likes it.</div></font></span></font> </div>

 

[idunno]

Do you have a date on that?<br /><br />Thanks for the welcome.<br /><br />Steve<br />"I have never let school get in the way of my education."

 

[idunno]

two different rocks we are talking about. I was talking about 2004 xp14. You mention apophis. I see with the orbit tracker April 14, 2029 as the closest flyby but no where near 18,000 miles or kilometers. Is this tracking software reliably accurate?<br /><br /><br />Steve<br />"I have never let school get in the way of my education."

 

[Boris_Badenov]

This is the link for 2004XP14, just advance the date to what you want to look at.<br /><br />http://neo.jpl.nasa.gov/cgi-bin/db?name=2004+XP14<br /><br /><br /> This is the link for Apophis, go to April 20, 2029. The close pass is only .038 AU, or 18,000 miles.<br /><br />http://neo.jpl.nasa.gov/cgi-bin/db_shm?sstr=Apophis&group=ast&search=Search<br /><br /> You will need Jave to run these.<br /> <div class="Discussion_UserSignature"> <font color="#993300"><span class="body"><font size="2" color="#3366ff"><div align="center">. </div><div align="center">Never roll in the mud with a pig. You'll both get dirty & the pig likes it.</div></font></span></font> </div>

 

[idunno]

ok i did some calculations. Would someone like to check them?<br /><br />0.038 Astronomical Units = 3 532 323.73 miles<br /><br />I'm sure you all have been to this site <br /><br />http://newton.dm.unipi.it/cgi-bin/neodys/neoibo?objects:Apophis;main<br />this site indicates that Earth MOID (AU) 0.0007 which is 0.0007 Astronomical Units = 65 069.1213 miles.