New announcements on Virtual Impactors - second page



This service of the Spaceguard Central Node is a complement of the NEODyS site in Pisa, Italy, and is intended to provide suggestions to observers regarding the observation of Near Earth Objects with remote impact possibilities. This page in particular refers to NEAs that can be recovered and to lost NEAs. This last group can be addressed through targeted campaigns aimed at removing their or some of their virtual impactors (VI) by means of performing negative observations. In the unlikely event that such observations turn out to be positive (that is the object is recovered) we will check if further actions have to be taken.




OBJECTS NOT OBSERVABLE, BUT POSSIBLE TO RECOVER


These objects are ordered by date of observability and not by designation:


2002 MN    - Mar./Apr. 2007:  24.5 - 24.7 V,   7-10',      H = 23.3
           VIs starting in 2061, campaign for VIs feasible in Feb./Mar. 2029


2003 LN6   - Apr. 2007/Jun. 2007:  23.7 - 24.8 V,    1-4', H = 24.5
           - Apr. 2022/Jun. 2022:  22.6 - 24.0 V,     10', H = 24.5
           VI in 2061 


2001 AV43  - May, June 2007: 24.4 V, 1',                   H = 24.4
           - July 2010: 23.9 V, 2',                        H = 24.4
           - Oct. 2013/Nov. 2013: easy (!) 18.6 V, 15',    H = 24.4
           VIs starting in 2049


2007 FY20  - Sep. 2007:          24.6 - 25.0 V,      1.5', H = 24.8 
           VIs starting in 2074: relatively easy recovery with an 8-m class
	   telescope.
	   

2005 UO    - Dec. 2007/Jan. 2008:  24.5-25.0 V,        8', H = 22.1
           VI in 2070, its recovery requires some effort with a very large telescope.


2006 JY26  - Feb. 2008:  24.6 V,                       3', H = 28.3
           VI in 2073, its recovery requires some effort with a very large telescope. 


2004 XK3   - Apr. 2008/May 2008: 23.4 - 24.0 V, 120'-140', H = 24.4
           Better to remove all the VIs (starting in 2029), if a direct recovery
	   is too much time consuming. 
	   - 17 Nov. 2008: unique opp. (!) 21.3 V,    51', H = 24.4 
           Excellent geometric conditions, objects then brightens at 19.8 V


2004 XM29  - May 2008: 20.1 V, lost but campaign to remove VIs possible, H = 22.9
           VIs starting in 2043


2005 YR3   - Jan 2009/Feb 2009: 21.0 - 22.0 V, 10-40', H = 23.6 
           Relatively easy recovery for a telescope in the 2-m size range provided
	   with a large enough fov. VIs starting in 2064


2000 QS7   - Aug. 2009/Feb. 2010: 22.5 - 22.8 V, 40',      H = 19.7
           VIs starting in 2053


2005 YU55  - Feb. 2010/Apr. 2010:  23.0 - 15.0 V, 30-360', H = 22.0, Close encounter
           - Jan. 2011/Feb. 2011:  22.5 V,            15', H = 22.0  
           VIs starting from 2036


2006 QV89  - Apr. 2011:       24.7 V,            41',      H = 25.3
           VIs starting in 2019, difficult recovery with a large telescope
    

1999 SF10  - Sept/Oct. 2012:         21.3 V, 60-120',      H = 24.2
           VI in 2080. A direct recovery should looks feasible around Oct. 9


2006 SC    - Jan./Mar. 2012:  24.5 - 25.1 V, 2 - 45',      H = 25.2
           VI in 2043. A direct recovery require a very large telescope
	   

2007 EO88  - Feb./Mar. 2013:  20 - 24.5 V, 3-deg - 30'     H = 26.4 
           VI in 2073. The recovery is not easy, probably the best compromise
	   is to search for the asteroid when at magnitude 22.


2005 VN5   - Jul./Aug. 2015:  22 - 25 V,  2-deg - 30'      H = 27.0
 

2000 SG344 -            May 2028: easy     19.2 V,  12',   H = 24.8 
           -            Jul 2029:          18.0 V, 110',   H = 24.8 
           VIs starting in 2069


1994 WR12  Almost lost: H = 22.1
           First VI in 2056: targeted recovery campaigns could be organized covering
	   several degrees can be organized in Nov.- Dec. 2019.



LOST OBJECTS


6344 P-L   - H = 21.4 
             Targeted campaign could be organized for the 2022 VI


1979 XB    - H = 18.5
             VI in 2056: since it is a large object we can wait a few years for an
	     accidental recovery

	    
1994 GK    - H = 24.2
             VI in 2051: a targeted campaign could be organized for this VI


1996 TC1   - H = 23.9
             First VI in 2054: targeted campaigns could be organized for all the VIs

	    
1997 TC25  - H = 24.9
             First VI in 2060: targeted campaigns could be organized for all the VIs


1998 DK36  - H = 25.0
             First VI in 2023: targeted campaigns should be organized soon for all the VIs


1998 WD31  - H = 23.5
             VI in 2059: targeted campaign could be organized for the VI


1999 RZ31  - H = 23.8
             VI in 2056: targeted campaign could be organized for the VI


2000 SB45  - H = 24.3
             First VI in 2067: targeted campaigns could be organized for all the VIs

	    
2001 CA21  - H = 18.8
             VI in 2070: since the orbit is extremely uncertain and it is a large object
	     we can wait a few years for an accidental recovery


2001 FB90  - H = 20.1
             First VI in 2021: before organizing targeted campaigns it is recommended
	     to remeasure the positions with a better astrometric catalogue


2001 SB170 - H = 22.4
             First VI in 2063: astrometric accuracy needs to be improved using a better 
	     astrometric catalogue (and this alone should eliminate the VIs)

	    
2001 YN2   - H = 25.0
             VI in 2079. Campaign to remove VI must be studied


2002 CB19  - H = 24.8
             VIs starting in 2048, campaign to remove VIs possible in Jul./Aug. 2007


2002 RB182 - H = 22.8  
             VIs starting in 2029, campaign to remove VIs possible in Oct. 2006


2002 TX55  - H = 23.7
             VI in 2059, campaign to remove the VI possible in Sep./Oct. 2012


2004 ME6   - H = 22.6
             VIs starting in 2044, very difficult case also for VI campaigns


2005 EL70  - H = 24.1 
             precovery positions on the discovery apparition welcome. 
             VIs starting in 2034, very difficult case also for VI campaigns


2005 ED224 - H = 24.0
             precovery positions on the discovery apparition welcome.
	     VIs starting in 2018, very difficult case


2005 GQ33  - H = 23.8
             precovery positions on the discovery apparition welcome.  
	     VIs starting in 2046, very difficult case


2005 NX55  - H = 22.1
             precovery positions on the discovery apparition welcome.
	     VIs starting in 2008, very difficult case also for VI campaigns


2005 UL6   - H = 24.5 
             precovery positions on the discovery apparition welcome. 
             VIs starting in 2029, very difficult case also for VI campaigns
	     

2005 TM173 - H = 24.1 
             precovery positions on the discovery apparition welcome.  
             VIs starting in 2009, very difficult case also for VI campaigns


2005 WG57  - H = 23.7 
             precovery positions on the discovery apparition welcome. 
             VIs starting in 2029


2006 BC8   - H = 25.1
             campaigns to remove all the VIs possible starting in 2012. 


2006 CD    - H = 20.5 
             since it is not a very small object an accidental recovery
             is likely in the next few yars. However, since VIs are starting in 2008,
	     targeted campaigns should be organized for all the VIs (near -1.0 sigma) shortly


2006 HF6   - H = 24.5 
             a campaign to remove its VIs can be organized for the apparition in 2011.






This document was updated on April 20, 2007, by Andrea Boattini and Germano D'Abramo