IPB

Welcome Guest ( Log In | Register )

27 Pages V  « < 16 17 18 19 20 > »   
Reply to this topicStart new topic
INCOMING!, Detection and observation of Earth-approaching asteroids.
jasedm
post Feb 5 2011, 10:51 PM
Post #256


Member
***

Group: Members
Posts: 614
Joined: 22-January 06
Member No.: 655



It never ceases to amaze me that despite 4.6 billion years of accretion, there are still a prodigious number of pieces of junk out there. Inevitable I suppose that the on-going sky surveys will pick up a frighteningly large rock heading our way - just a question of when..

blink.gif
Go to the top of the page
 
+Quote Post
ngunn
post Feb 9 2011, 10:23 AM
Post #257


Senior Member
****

Group: Members
Posts: 3436
Joined: 4-November 05
From: North Wales
Member No.: 542



QUOTE (tasp @ Feb 5 2011, 03:56 PM) *
A ring side seat watching an object shift from an Apollo asteroid orbit to an Aten class.


Given that it will now have a lower perihelion I wonder if it will develop a tail?
Go to the top of the page
 
+Quote Post
Holder of the Tw...
post Jun 24 2011, 05:00 AM
Post #258


Member
***

Group: Members
Posts: 457
Joined: 17-November 05
From: Oklahoma
Member No.: 557



Another small rock to pay a close visit in a few days.

JPL report
Go to the top of the page
 
+Quote Post
claurel
post Jun 27 2011, 04:56 PM
Post #259


Junior Member
**

Group: Members
Posts: 35
Joined: 28-September 05
From: Seattle, WA
Member No.: 514



QUOTE (Holder of the Two Leashes @ Jun 23 2011, 10:00 PM) *
Another small rock to pay a close visit in a few days.

JPL report


Close approach in about 5 minutes!

Here's an animation I made that shows the encounter from the asteroid's point of view:
http://www.youtube.com/watch?v=AkBFNOah4q0

Itokawa standing in for 2011 MD, and a WAG for the rotation state.

--Chris
Go to the top of the page
 
+Quote Post
ElkGroveDan
post Jun 27 2011, 05:01 PM
Post #260


Senior Member
****

Group: Admin
Posts: 4732
Joined: 15-March 05
From: Sloughhouse, CA
Member No.: 197



Nice work. Thanks for creating that.


--------------------
If Occam had heard my theory, things would be very different now.
Go to the top of the page
 
+Quote Post
jasedm
post Jun 27 2011, 05:08 PM
Post #261


Member
***

Group: Members
Posts: 614
Joined: 22-January 06
Member No.: 655



Outstanding! Thanks for that Claurel.
Go to the top of the page
 
+Quote Post
Bunker9603
post Jun 28 2011, 02:57 AM
Post #262


Newbie
*

Group: Members
Posts: 13
Joined: 14-October 07
Member No.: 3937



That is a great animation! I looked at your other videos and they are all very nice...I am also your newest subscriber!
Go to the top of the page
 
+Quote Post
walfy
post Jun 28 2011, 03:04 AM
Post #263


Member
***

Group: Members
Posts: 387
Joined: 5-January 10
Member No.: 5161



Excellent animation!
Go to the top of the page
 
+Quote Post
SolarSystemRubbl...
post Sep 26 2011, 10:38 PM
Post #264


Junior Member
**

Group: Members
Posts: 30
Joined: 5-September 07
From: High Bridge, New Jersey, USA
Member No.: 3669



NASA To Host News Conference On Asteroid Search Findings WASHINGTON -- NASA will hold a news conference at 1 p.m. EDT on Thurs., Sept. 29, to reveal near-Earth asteroid findings and implications for future research. The briefing will take place in the NASA Headquarters James E. Webb Auditorium, located at 300 E St. SW in Washington.

NASA's Wide-field Infrared Survey Explorer (WISE) mission, launched in December 2009, captured millions of images of galaxies and objects in space. During the news conference, panelists will discuss results from an enhancement of WISE called Near-Earth Object WISE (NEOWISE) that hunted for asteroids.

The panelists are:
-- Lindley Johnson, NEO program executive, NASA Headquarters, Washington
-- Amy Mainzer, NEOWISE principal investigator, NASA's Jet Propulsion Laboratory, Pasadena, Calif.
-- Tim Spahr, director, Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, Mass.
-- Lucy McFadden, scientist, NASA's Goddard Space Flight Center, Greenbelt, Md.

The event will air live on NASA Television and the agency's website. For NASA TV streaming video, downlink and scheduling information, visit:

http://www.nasa.gov/ntv

The briefing also will be streamed live, with a chat available, at:

http://www.ustream.tv/nasajpl2

For more information about the mission, visit:

http://www.nasa.gov/wise


Go to the top of the page
 
+Quote Post
Paolo
post Sep 30 2011, 05:30 AM
Post #265


Senior Member
****

Group: Members
Posts: 1608
Joined: 3-August 06
From: 43° 35' 53" N 1° 26' 35" E
Member No.: 1004



arXiv paper on NEOWISE results, presented at yesterday's press conf
NEOWISE Observations of Near-Earth Objects: Preliminary Results
Go to the top of the page
 
+Quote Post
Paolo
post Oct 14 2011, 05:34 PM
Post #266


Senior Member
****

Group: Members
Posts: 1608
Joined: 3-August 06
From: 43° 35' 53" N 1° 26' 35" E
Member No.: 1004



a near miss in 1883?
Interpretation of the observations made in 1883 in Zacatecas (Mexico): A fragmented Comet that nearly hits the Earth
I tend to be skeptical of this kind of old visual obs, but well, who knows...
Go to the top of the page
 
+Quote Post
PDP8E
post Oct 14 2011, 07:20 PM
Post #267


Member
***

Group: Members
Posts: 597
Joined: 10-October 06
From: Maynard Mass USA
Member No.: 1241



QUOTE (Paolo @ Oct 14 2011, 01:34 PM) *
a near miss in 1883? .... I tend to be skeptical of this kind of old visual obs, but well, who knows...


Seriously? Why would any scientist publish an article in ComicSans?
Especially one on very tenuous ground to begin with...



--------------------
CLA CLL
Go to the top of the page
 
+Quote Post
centsworth_II
post Oct 14 2011, 10:13 PM
Post #268


Senior Member
****

Group: Members
Posts: 2138
Joined: 28-December 04
From: Florida, USA
Member No.: 132



QUOTE (PDP8E @ Oct 14 2011, 03:20 PM) *
Seriously? Why would any scientist publish an article in ComicSans?

So that someone could incorporate an actual screen capture of their text into a cartoon. laugh.gif

Attached Image
Go to the top of the page
 
+Quote Post
PDP8E
post Oct 15 2011, 12:10 AM
Post #269


Member
***

Group: Members
Posts: 597
Joined: 10-October 06
From: Maynard Mass USA
Member No.: 1241



I see your logic centsworth the 2nd! wink.gif


--------------------
CLA CLL
Go to the top of the page
 
+Quote Post
Paolo
post Oct 15 2011, 10:17 AM
Post #270


Senior Member
****

Group: Members
Posts: 1608
Joined: 3-August 06
From: 43° 35' 53" N 1° 26' 35" E
Member No.: 1004



the paper is making some buzz on the internet: Was the “First Photographed UFO” a Comet?
Go to the top of the page
 
+Quote Post

27 Pages V  « < 16 17 18 19 20 > » 
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 15th December 2017 - 06:36 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.