Current Impact Risks

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Sentry Risk Table
Removed Objects Introduction to Impact Monitoring Frequently Asked Questions	The following table lists potential future Earth impact events that the JPL Sentry System has detected based on currently available observations. Click on the object designation to go to a page with full details on that object. Sentry is a highly automated collision monitoring system that continually scans the most current asteroid catalog for possibilities of future impact with Earth over the next 100 years. Whenever a potential impact is detected it will be analyzed and the results immediately published here, except in unusual cases where an IAU Technical Review is underway. It is normal that, as additional observations become available, objects will disappear from this table whenever there are no longer any potential impact detections. For this reason we maintain a list of removed objects with the date of removal.

NOTES: 2009-Jan-22 For a few special cases, Sentry is conducting impactor searches for more than 100 years into the future. This is a part of an ongoing research and expansion effort intended to eventually systematically support longer impact monitoring horizons. Progress to date is detailed in a preprint paper, "Long term impact risk for (101955) 1999 RQ36" by Milani, Chesley, Sansaturio, Bernardi, Valsecchi and Arratia (2009). Note that the Torino Scale is formally undefined for potential impacts more than one century into the future, and so the scale is not applicable in such cases. 2008-May-18 Sentry has switched to a new server and management architecture. As a part of this transition, all objects in the NEA catalog were reanalyzed with the new system. This recomputation leads inevitably to minor differences in the results due to the statistical nature of the impact monitoring algorithms.

238 NEAs: Last Updated Feb 08, 2009
Sort by Palermo Scale (cum.) or by Object Designation

Recently Observed Objects
(within past 60 days)

Object Designation	Year Range	Potential Impacts	Impact Prob. (cum.)	V_infinity (km/s)	H (mag)	Est. Diam. (km)	Palermo Scale (cum.)	Palermo Scale (max.)	Torino Scale (max.)
`153814 2001 WN5`	`2133-2133`	`1`	`1.1e-05`	`10.12`	`18.2`	`0.780`	`-2.13`	`-2.13`	`n/a`
`2009 CR2`	`2019-2107`	`8`	`8.6e-09`	`19.00`	`16.7`	`1.600`	`-3.31`	`-3.36`	`0`
`2009 CB3`	`2012-2087`	`69`	`4.1e-08`	`30.55`	`19.2`	`0.490`	`-3.39`	`-3.69`	`0`
`2009 CC3`	`2095-2104`	`5`	`3.9e-07`	`10.20`	`19.0`	`0.540`	`-3.84`	`-4.22`	`0`
`2009 BE`	`2061-2108`	`21`	`6.3e-04`	`11.46`	`26.1`	`0.020`	`-3.91`	`-4.17`	`0`
`2009 BJ58`	`2011-2020`	`2`	`4.1e-09`	`21.69`	`19.2`	`0.497`	`-4.34`	`-4.52`	`0`
`2009 BR5`	`2059-2078`	`3`	`3.1e-07`	`18.10`	`22.1`	`0.130`	`-5.00`	`-5.24`	`0`
`2009 BF58`	`2055-2087`	`29`	`2.2e-04`	`6.68`	`27.3`	`0.012`	`-5.07`	`-5.34`	`0`
`2009 BD`	`2060-2107`	`9`	`6.5e-04`	`1.08`	`28.3`	`0.007`	`-5.11`	`-5.29`	`0`
`2008 YO2`	`2052-2107`	`39`	`6.8e-06`	`16.48`	`25.2`	`0.031`	`-5.31`	`-5.88`	`0`
`2009 CZ1`	`2058-2106`	`3`	`1.1e-06`	`17.82`	`24.4`	`0.044`	`-5.55`	`-5.72`	`0`
`2009 BF81`	`2091-2091`	`1`	`5.6e-06`	`10.46`	`25.2`	`0.031`	`-5.62`	`-5.62`	`0`
`2009 BD81`	`2046-2046`	`1`	`8.3e-09`	`11.15`	`20.3`	`0.300`	`-5.71`	`-5.71`	`0`
`2008 YV32`	`2085-2107`	`11`	`7.0e-06`	`8.79`	`26.4`	`0.018`	`-6.14`	`-6.80`	`0`
`2008 XC1`	`2085-2088`	`2`	`1.3e-07`	`11.66`	`23.7`	`0.063`	`-6.44`	`-6.50`	`0`
`2008 XU2`	`2039-2039`	`1`	`2.9e-07`	`9.93`	`25.6`	`0.026`	`-6.65`	`-6.65`	`0`
`2008 YD3`	`2012-2104`	`21`	`4.3e-08`	`6.70`	`26.2`	`0.020`	`-7.82`	`-8.25`	`0`
`2008 YC3`	`2088-2106`	`4`	`2.0e-08`	`6.25`	`25.4`	`0.029`	`-8.26`	`-8.34`	`0`

Objects Not Recently Observed

Object Designation	Year Range	Potential Impacts	Impact Prob. (cum.)	V_infinity (km/s)	H (mag)	Est. Diam. (km)	Palermo Scale (cum.)	Palermo Scale (max.)	Torino Scale (max.)
`101955 1999 RQ36`	`2169-2199`	`8`	`7.1e-04`	`6.36`	`20.7`	`0.560`	`-1.12`	`-1.52`	`n/a`
`2007 VK184`	`2048-2057`	`4`	`3.4e-04`	`15.63`	`22.0`	`0.130`	`-1.82`	`-1.83`	`1`
`99942 Apophis (2004 MN4)`	`2036-2069`	`3`	`2.3e-05`	`5.87`	`19.7`	`0.270`	`-2.41`	`-2.42`	`0`
`2008 AO112`	`2009-2099`	`46`	`3.9e-07`	`3.20`	`20.2`	`0.310`	`-2.88`	`-2.89`	`0`
`1994 WR12`	`2054-2106`	`121`	`9.1e-05`	`9.84`	`22.4`	`0.110`	`-2.99`	`-3.92`	`0`
`1979 XB`	`2056-2086`	`2`	`3.0e-07`	`24.59`	`18.5`	`0.687`	`-3.05`	`-3.09`	`0`
`2000 SG344`	`2068-2073`	`12`	`1.3e-03`	`1.38`	`24.8`	`0.037`	`-3.15`	`-3.39`	`0`
`2006 QV89`	`2019-2042`	`14`	`3.2e-04`	`5.17`	`25.3`	`0.030`	`-3.17`	`-3.18`	`0`
`2008 CK70`	`2030-2031`	`2`	`2.9e-04`	`15.29`	`25.2`	`0.031`	`-3.17`	`-3.17`	`0`
`2000 QS7`	`2053-2053`	`2`	`1.3e-06`	`12.32`	`19.6`	`0.420`	`-3.22`	`-3.41`	`0`
`2007 RY19`	`2024-2107`	`48`	`6.5e-05`	`9.48`	`22.5`	`0.110`	`-3.25`	`-3.80`	`0`
`2007 FT3`	`2013-2107`	`141`	`9.2e-07`	`17.02`	`20.0`	`0.340`	`-3.39`	`-4.22`	`0`
`2007 UW1`	`2048-2107`	`91`	`7.6e-05`	`4.73`	`22.7`	`0.097`	`-3.40`	`-4.27`	`0`
`1998 HJ3`	`2100-2104`	`3`	`2.4e-07`	`24.09`	`18.5`	`0.693`	`-3.42`	`-3.60`	`0`
`2007 DX40`	`2030-2107`	`40`	`1.6e-04`	`15.51`	`24.6`	`0.040`	`-3.49`	`-3.79`	`0`
`2004 BX159`	`2009-2100`	`14`	`3.6e-09`	`13.97`	`17.2`	`1.200`	`-3.57`	`-3.66`	`0`
`2008 UB7`	`2044-2100`	`32`	`4.8e-05`	`18.49`	`23.9`	`0.057`	`-3.64`	`-4.07`	`0`
`2008 AF4`	`2096-2100`	`3`	`1.1e-06`	`11.65`	`19.7`	`0.400`	`-3.65`	`-3.86`	`0`
`2008 ER7`	`2077-2102`	`6`	`9.7e-07`	`19.12`	`20.1`	`0.320`	`-3.66`	`-4.08`	`0`
`2008 JL3`	`2024-2100`	`16`	`1.2e-04`	`8.43`	`25.3`	`0.029`	`-3.77`	`-3.78`	`0`
`1994 GK`	`2051-2071`	`6`	`6.1e-05`	`14.87`	`24.2`	`0.048`	`-3.79`	`-3.79`	`0`
`2005 YU55`	`2036-2107`	`66`	`5.0e-06`	`13.58`	`22.0`	`0.130`	`-3.83`	`-4.89`	`0`
`2005 QK76`	`2030-2108`	`11`	`5.3e-05`	`19.67`	`25.2`	`0.031`	`-3.85`	`-4.03`	`0`
`2008 UV99`	`2013-2101`	`35`	`1.1e-07`	`15.87`	`19.6`	`0.400`	`-3.90`	`-4.17`	`0`
`2000 SB45`	`2074-2088`	`45`	`1.2e-04`	`7.54`	`24.3`	`0.046`	`-3.91`	`-4.24`	`0`
`2001 CA21`	`2020-2073`	`6`	`1.0e-08`	`30.63`	`18.5`	`0.677`	`-3.93`	`-4.23`	`0`
`2008 CC71`	`2033-2082`	`26`	`1.0e-04`	`8.10`	`24.9`	`0.036`	`-4.04`	`-4.20`	`0`
`2006 CM10`	`2092-2092`	`1`	`1.7e-06`	`22.34`	`21.7`	`0.150`	`-4.14`	`-4.14`	`0`
`2005 ED224`	`2018-2064`	`6`	`2.8e-06`	`25.17`	`24.0`	`0.054`	`-4.18`	`-4.40`	`0`
`2006 JY26`	`2073-2107`	`60`	`5.8e-03`	`2.98`	`28.4`	`0.007`	`-4.20`	`-4.25`	`0`
`2007 KO4`	`2015-2107`	`292`	`4.0e-06`	`13.68`	`23.3`	`0.075`	`-4.21`	`-4.46`	`0`
`2005 BS1`	`2016-2041`	`4`	`8.2e-05`	`12.36`	`27.3`	`0.012`	`-4.36`	`-4.36`	`0`
`2008 ST7`	`2074-2105`	`18`	`3.3e-05`	`9.97`	`24.1`	`0.052`	`-4.36`	`-4.67`	`0`
`2002 TX55`	`2089-2096`	`3`	`1.8e-05`	`10.15`	`23.6`	`0.063`	`-4.36`	`-4.40`	`0`
`2008 HJ`	`2077-2106`	`17`	`2.2e-04`	`7.53`	`25.7`	`0.024`	`-4.39`	`-4.85`	`0`
`2005 EL70`	`2034-2058`	`2`	`1.8e-06`	`35.50`	`24.1`	`0.052`	`-4.43`	`-4.44`	`0`
`2001 BB16`	`2084-2099`	`4`	`6.1e-06`	`3.56`	`22.6`	`0.100`	`-4.50`	`-4.66`	`0`
`2007 KE4`	`2026-2096`	`4`	`2.3e-05`	`10.06`	`25.2`	`0.031`	`-4.50`	`-4.53`	`0`
`2006 DM63`	`2031-2108`	`42`	`1.2e-04`	`10.37`	`26.7`	`0.015`	`-4.52`	`-4.89`	`0`
`2005 XA8`	`2063-2086`	`29`	`7.9e-05`	`12.08`	`25.6`	`0.025`	`-4.54`	`-4.69`	`0`
`2006 SC`	`2043-2095`	`5`	`2.5e-05`	`12.23`	`25.2`	`0.031`	`-4.66`	`-4.68`	`0`
`2008 DB`	`2046-2108`	`29`	`5.6e-05`	`6.96`	`25.7`	`0.025`	`-4.68`	`-4.77`	`0`
`2004 GE2`	`2100-2106`	`2`	`4.0e-07`	`20.56`	`21.4`	`0.180`	`-4.69`	`-4.71`	`0`
`2008 PG1`	`2013-2107`	`97`	`1.1e-07`	`7.33`	`21.1`	`0.209`	`-4.73`	`-5.05`	`0`
`2002 VU17`	`2084-2099`	`5`	`1.9e-05`	`13.69`	`24.8`	`0.038`	`-4.78`	`-5.20`	`0`
`2000 TU28`	`2104-2104`	`1`	`2.3e-07`	`9.47`	`20.4`	`0.280`	`-4.79`	`-4.79`	`0`
`2005 WG57`	`2029-2104`	`9`	`2.3e-06`	`9.91`	`23.6`	`0.063`	`-4.80`	`-4.86`	`0`
`2008 EX5`	`2062-2072`	`6`	`6.0e-06`	`9.92`	`23.8`	`0.059`	`-4.80`	`-5.23`	`0`
`2007 WP3`	`2098-2105`	`8`	`5.4e-06`	`13.03`	`23.5`	`0.067`	`-4.81`	`-5.16`	`0`
`2002 MN`	`2070-2107`	`11`	`3.7e-06`	`10.40`	`23.3`	`0.073`	`-4.83`	`-5.22`	`0`
`2002 RB182`	`2044-2088`	`13`	`1.6e-06`	`13.20`	`22.8`	`0.093`	`-4.83`	`-5.21`	`0`
`2006 HF6`	`2068-2070`	`7`	`6.8e-06`	`16.39`	`24.5`	`0.043`	`-4.87`	`-5.34`	`0`
`2008 FF5`	`2060-2060`	`1`	`3.6e-07`	`39.47`	`23.1`	`0.081`	`-4.91`	`-4.91`	`0`
`2007 VH189`	`2013-2049`	`15`	`3.3e-07`	`18.43`	`23.3`	`0.073`	`-4.91`	`-5.13`	`0`
`2001 FB90`	`2021-2091`	`3`	`4.2e-09`	`26.14`	`19.9`	`0.349`	`-5.00`	`-5.01`	`0`
`2004 VM24`	`2069-2107`	`23`	`2.9e-05`	`12.86`	`25.7`	`0.025`	`-5.02`	`-5.47`	`0`
`2007 VE8`	`2062-2062`	`1`	`1.8e-05`	`9.05`	`25.4`	`0.028`	`-5.08`	`-5.08`	`0`
`2004 FU162`	`2009-2108`	`963`	`6.4e-05`	`9.68`	`29.0`	`0.006`	`-5.08`	`-5.66`	`0`
`2005 NX55`	`2011-2102`	`86`	`3.1e-08`	`24.75`	`21.9`	`0.140`	`-5.11`	`-5.72`	`0`
`2006 JE`	`2094-2107`	`3`	`1.6e-06`	`26.34`	`23.8`	`0.058`	`-5.14`	`-5.18`	`0`
`2008 CT1`	`2041-2108`	`109`	`9.2e-05`	`13.86`	`27.5`	`0.011`	`-5.14`	`-5.47`	`0`
`2008 KO`	`2049-2061`	`3`	`1.4e-06`	`23.48`	`24.4`	`0.045`	`-5.17`	`-5.51`	`0`
`2007 YM`	`2010-2107`	`110`	`5.8e-06`	`8.04`	`26.1`	`0.020`	`-5.20`	`-5.32`	`0`
`2001 GP2`	`2043-2107`	`37`	`1.0e-04`	`2.58`	`26.9`	`0.014`	`-5.20`	`-5.66`	`0`
`2004 PU42`	`2071-2107`	`21`	`7.8e-05`	`10.11`	`26.8`	`0.015`	`-5.21`	`-5.83`	`0`
`2008 EM68`	`2010-2108`	`1173`	`1.7e-05`	`14.63`	`27.7`	`0.010`	`-5.21`	`-5.57`	`0`
`2008 TE`	`2023-2047`	`3`	`3.2e-05`	`11.84`	`27.7`	`0.010`	`-5.25`	`-5.26`	`0`
`1995 CS`	`2042-2073`	`7`	`3.8e-06`	`24.91`	`25.5`	`0.027`	`-5.27`	`-5.65`	`0`
`2006 WP1`	`2015-2017`	`2`	`1.9e-05`	`18.00`	`28.2`	`0.008`	`-5.27`	`-5.31`	`0`
`2008 VS4`	`2011-2106`	`344`	`9.1e-07`	`11.74`	`24.2`	`0.048`	`-5.28`	`-6.12`	`0`
`2006 QN111`	`2079-2079`	`1`	`2.1e-06`	`10.55`	`23.8`	`0.060`	`-5.28`	`-5.28`	`0`
`1996 TC1`	`2054-2072`	`5`	`8.4e-07`	`24.02`	`23.9`	`0.055`	`-5.29`	`-5.41`	`0`
`2006 CD`	`2015-2094`	`58`	`3.1e-08`	`11.20`	`21.0`	`0.213`	`-5.30`	`-5.97`	`0`
`2007 DS7`	`2048-2107`	`17`	`1.8e-05`	`12.39`	`25.8`	`0.023`	`-5.32`	`-5.54`	`0`
`2008 EZ84`	`2072-2108`	`5`	`2.9e-05`	`7.92`	`26.2`	`0.020`	`-5.32`	`-5.41`	`0`
`2005 VN5`	`2047-2107`	`21`	`7.5e-05`	`6.57`	`27.0`	`0.014`	`-5.33`	`-5.71`	`0`
`2007 TC14`	`2082-2082`	`1`	`1.2e-07`	`25.54`	`22.1`	`0.130`	`-5.34`	`-5.34`	`0`
`1994 GV`	`2036-2107`	`27`	`9.2e-05`	`8.15`	`27.5`	`0.011`	`-5.35`	`-5.93`	`0`
`2005 UO`	`2074-2074`	`2`	`1.4e-07`	`19.02`	`22.1`	`0.130`	`-5.36`	`-5.36`	`0`
`2006 XP4`	`2107-2107`	`4`	`3.8e-06`	`5.78`	`23.9`	`0.055`	`-5.38`	`-5.46`	`0`
`2006 BC8`	`2080-2107`	`13`	`7.4e-06`	`13.19`	`25.1`	`0.032`	`-5.40`	`-5.78`	`0`
`2005 TM173`	`2009-2106`	`168`	`9.8e-07`	`8.78`	`24.1`	`0.051`	`-5.43`	`-6.37`	`0`
`2007 CC27`	`2059-2100`	`42`	`4.6e-05`	`10.86`	`26.9`	`0.014`	`-5.44`	`-5.86`	`0`
`2006 SF281`	`2009-2105`	`344`	`2.1e-06`	`4.51`	`26.2`	`0.020`	`-5.45`	`-6.61`	`0`
`2000 LG6`	`2075-2107`	`25`	`8.7e-04`	`2.10`	`29.0`	`0.005`	`-5.45`	`-5.88`	`0`
`2008 KN11`	`2046-2046`	`1`	`3.1e-07`	`13.83`	`23.3`	`0.075`	`-5.50`	`-5.50`	`0`
`2004 ME6`	`2017-2105`	`46`	`1.2e-07`	`12.02`	`22.6`	`0.102`	`-5.57`	`-6.28`	`0`
`2005 AU3`	`2081-2106`	`20`	`1.1e-05`	`14.45`	`26.0`	`0.022`	`-5.62`	`-6.04`	`0`
`2007 UO6`	`2010-2104`	`15`	`1.7e-05`	`11.71`	`27.3`	`0.012`	`-5.63`	`-6.13`	`0`
`2008 PK9`	`2045-2057`	`4`	`8.3e-08`	`27.25`	`23.1`	`0.080`	`-5.66`	`-5.84`	`0`
`2001 BA16`	`2033-2051`	`4`	`5.3e-06`	`4.90`	`25.8`	`0.023`	`-5.70`	`-5.73`	`0`
`2008 LG2`	`2059-2108`	`16`	`6.3e-06`	`4.62`	`25.2`	`0.030`	`-5.71`	`-6.33`	`0`
`2006 UU17`	`2075-2107`	`6`	`2.0e-05`	`9.80`	`26.4`	`0.018`	`-5.72`	`-5.98`	`0`
`2001 UD5`	`2107-2107`	`1`	`1.4e-07`	`16.73`	`22.4`	`0.110`	`-5.73`	`-5.73`	`0`
`2007 XZ9`	`2056-2089`	`5`	`1.6e-06`	`13.02`	`24.8`	`0.037`	`-5.75`	`-5.94`	`0`
`2008 ST`	`2047-2101`	`14`	`4.4e-05`	`3.24`	`27.1`	`0.013`	`-5.76`	`-5.90`	`0`
`2001 SB170`	`2080-2095`	`3`	`7.8e-08`	`22.49`	`22.5`	`0.110`	`-5.81`	`-6.11`	`0`
`2003 LN6`	`2061-2099`	`3`	`1.6e-06`	`3.96`	`24.5`	`0.043`	`-5.81`	`-5.85`	`0`
`1999 SF10`	`2080-2105`	`4`	`1.5e-06`	`4.76`	`24.0`	`0.053`	`-5.82`	`-6.20`	`0`
`2007 EV`	`2088-2104`	`4`	`3.1e-06`	`10.58`	`25.0`	`0.033`	`-5.84`	`-6.00`	`0`
`1999 RZ31`	`2056-2056`	`1`	`4.5e-07`	`8.20`	`23.8`	`0.059`	`-5.87`	`-5.87`	`0`
`2002 UV36`	`2087-2087`	`1`	`1.5e-05`	`8.06`	`26.5`	`0.017`	`-5.88`	`-5.88`	`0`
`2007 VE191`	`2015-2015`	`1`	`3.2e-08`	`16.91`	`23.7`	`0.063`	`-5.88`	`-5.88`	`0`
`2001 QJ96`	`2032-2032`	`1`	`9.0e-09`	`26.69`	`22.0`	`0.130`	`-5.89`	`-5.89`	`0`
`2007 UN12`	`2069-2107`	`32`	`2.4e-04`	`1.57`	`28.7`	`0.006`	`-5.92`	`-6.70`	`0`
`2006 HX57`	`2045-2065`	`2`	`1.7e-06`	`10.54`	`25.2`	`0.031`	`-5.93`	`-6.01`	`0`
`2005 VL1`	`2031-2106`	`44`	`1.3e-05`	`6.41`	`26.7`	`0.015`	`-5.94`	`-6.47`	`0`
`2005 TH50`	`2031-2094`	`24`	`5.7e-05`	`4.93`	`28.0`	`0.009`	`-5.94`	`-6.34`	`0`
`2007 UD6`	`2058-2106`	`57`	`9.0e-05`	`5.98`	`28.3`	`0.007`	`-5.94`	`-6.58`	`0`
`2004 VZ14`	`2076-2107`	`6`	`2.0e-06`	`15.21`	`25.3`	`0.030`	`-5.95`	`-6.44`	`0`
`2007 HB15`	`2055-2107`	`27`	`3.8e-05`	`6.34`	`27.8`	`0.009`	`-5.96`	`-6.07`	`0`
`2006 FW33`	`2012-2107`	`62`	`7.2e-08`	`9.27`	`23.2`	`0.079`	`-5.96`	`-6.42`	`0`
`2008 DA4`	`2091-2100`	`2`	`6.0e-07`	`11.09`	`23.9`	`0.056`	`-5.98`	`-6.07`	`0`
`2008 EV84`	`2041-2106`	`2`	`8.9e-07`	`12.94`	`25.3`	`0.029`	`-6.01`	`-6.01`	`0`
`2007 TL16`	`2074-2095`	`13`	`6.1e-06`	`11.42`	`26.2`	`0.019`	`-6.01`	`-6.17`	`0`
`2006 WV29`	`2036-2107`	`12`	`4.6e-06`	`16.75`	`26.5`	`0.017`	`-6.06`	`-6.50`	`0`
`2007 FY20`	`2085-2101`	`7`	`1.1e-06`	`9.70`	`24.8`	`0.037`	`-6.18`	`-6.49`	`0`
`1998 DK36`	`2021-2100`	`25`	`9.8e-07`	`6.15`	`25.0`	`0.034`	`-6.22`	`-6.27`	`0`
`2008 EA9`	`2068-2105`	`11`	`2.9e-05`	`1.27`	`27.7`	`0.010`	`-6.22`	`-6.53`	`0`
`2006 WZ184`	`2044-2106`	`24`	`4.6e-06`	`7.27`	`26.0`	`0.021`	`-6.25`	`-7.01`	`0`
`2007 EO88`	`2073-2095`	`6`	`3.1e-06`	`10.94`	`26.4`	`0.018`	`-6.35`	`-6.50`	`0`
`2007 DC`	`2034-2108`	`50`	`1.1e-05`	`6.71`	`27.5`	`0.011`	`-6.35`	`-7.14`	`0`
`2006 SR131`	`2071-2107`	`22`	`2.3e-05`	`8.47`	`28.0`	`0.009`	`-6.35`	`-6.97`	`0`
`2008 CB6`	`2093-2107`	`3`	`1.1e-05`	`7.42`	`27.1`	`0.013`	`-6.37`	`-6.51`	`0`
`2006 KF100`	`2017-2071`	`3`	`4.4e-10`	`16.09`	`19.7`	`0.390`	`-6.37`	`-6.51`	`0`
`2008 SH148`	`2011-2107`	`189`	`1.0e-06`	`8.70`	`26.1`	`0.020`	`-6.43`	`-7.12`	`0`
`2007 TX22`	`2040-2079`	`45`	`2.2e-05`	`8.93`	`28.4`	`0.007`	`-6.44`	`-7.09`	`0`
`2006 BM8`	`2102-2106`	`4`	`8.7e-07`	`14.82`	`25.4`	`0.028`	`-6.45`	`-6.81`	`0`
`2006 GU2`	`2022-2107`	`67`	`9.7e-06`	`7.32`	`27.8`	`0.009`	`-6.46`	`-6.83`	`0`
`2003 WT153`	`2044-2107`	`48`	`2.3e-05`	`4.38`	`28.1`	`0.008`	`-6.47`	`-6.80`	`0`
`2006 DN`	`2056-2056`	`1`	`3.0e-07`	`3.99`	`24.5`	`0.043`	`-6.48`	`-6.48`	`0`
`2001 AV43`	`2069-2105`	`3`	`5.1e-07`	`3.70`	`24.4`	`0.044`	`-6.49`	`-6.90`	`0`
`2008 VL`	`2010-2101`	`717`	`1.1e-05`	`9.16`	`28.0`	`0.008`	`-6.50`	`-8.00`	`0`
`2005 UL6`	`2068-2068`	`2`	`2.1e-07`	`12.02`	`24.5`	`0.042`	`-6.52`	`-6.67`	`0`
`2008 UA202`	`2047-2108`	`79`	`9.2e-05`	`2.30`	`29.4`	`0.004`	`-6.54`	`-7.27`	`0`
`2004 BN41`	`2086-2098`	`2`	`1.5e-06`	`7.56`	`25.8`	`0.024`	`-6.55`	`-6.67`	`0`
`2008 BC15`	`2072-2094`	`2`	`1.4e-06`	`20.65`	`26.6`	`0.016`	`-6.55`	`-6.74`	`0`
`2002 XV90`	`2101-2102`	`4`	`8.6e-07`	`7.63`	`25.2`	`0.031`	`-6.57`	`-6.67`	`0`
`2007 EZ25`	`2047-2087`	`2`	`2.6e-07`	`21.18`	`25.5`	`0.026`	`-6.57`	`-6.76`	`0`
`2004 FH`	`2098-2107`	`3`	`3.5e-06`	`6.97`	`26.4`	`0.018`	`-6.58`	`-6.77`	`0`
`2008 LD`	`2049-2108`	`45`	`4.2e-05`	`4.13`	`28.9`	`0.006`	`-6.62`	`-7.43`	`0`
`2008 TS10`	`2068-2103`	`17`	`4.3e-05`	`3.18`	`28.8`	`0.006`	`-6.63`	`-7.42`	`0`
`2007 SN6`	`2022-2059`	`2`	`1.4e-07`	`18.34`	`25.0`	`0.033`	`-6.65`	`-6.71`	`0`
`2007 UT3`	`2062-2081`	`6`	`7.0e-07`	`9.06`	`25.7`	`0.024`	`-6.72`	`-6.96`	`0`
`2003 DW10`	`2046-2058`	`4`	`6.7e-07`	`7.82`	`26.1`	`0.020`	`-6.75`	`-7.04`	`0`
`2006 HE2`	`2066-2104`	`5`	`2.3e-06`	`5.02`	`26.5`	`0.017`	`-6.76`	`-6.97`	`0`
`2007 WT3`	`2101-2101`	`1`	`6.9e-08`	`19.92`	`24.1`	`0.051`	`-6.78`	`-6.78`	`0`
`2007 US51`	`2082-2102`	`4`	`2.3e-06`	`15.32`	`27.2`	`0.012`	`-6.78`	`-6.88`	`0`
`1997 TC25`	`2090-2096`	`2`	`2.9e-07`	`9.92`	`24.9`	`0.036`	`-6.79`	`-6.79`	`0`
`2008 VM`	`2016-2031`	`6`	`2.4e-05`	`10.27`	`30.2`	`0.003`	`-6.80`	`-6.82`	`0`
`2004 RU109`	`2038-2053`	`4`	`5.7e-07`	`12.93`	`26.5`	`0.017`	`-6.80`	`-7.17`	`0`
`2008 XK`	`2013-2107`	`174`	`8.7e-07`	`7.09`	`27.2`	`0.012`	`-6.81`	`-7.71`	`0`
`2008 UY91`	`2014-2107`	`39`	`2.4e-08`	`16.21`	`24.6`	`0.041`	`-6.81`	`-7.24`	`0`
`2002 TY59`	`2074-2084`	`2`	`4.8e-07`	`8.22`	`25.4`	`0.028`	`-6.82`	`-6.82`	`0`
`2008 GM2`	`2063-2108`	`41`	`1.7e-05`	`4.62`	`28.4`	`0.007`	`-6.84`	`-7.50`	`0`
`2008 OO1`	`2107-2107`	`1`	`1.6e-07`	`12.97`	`24.6`	`0.041`	`-6.85`	`-6.85`	`0`
`2002 CB19`	`2049-2049`	`1`	`6.3e-08`	`15.73`	`24.8`	`0.038`	`-6.88`	`-6.88`	`0`
`2008 WO2`	`2065-2096`	`9`	`6.0e-05`	`6.11`	`29.8`	`0.004`	`-6.91`	`-7.22`	`0`
`2003 UQ25`	`2093-2093`	`1`	`5.2e-08`	`18.01`	`24.2`	`0.050`	`-6.96`	`-6.96`	`0`
`2008 BN16`	`2067-2086`	`5`	`2.6e-07`	`18.57`	`25.9`	`0.022`	`-6.98`	`-7.18`	`0`
`2003 UM3`	`2022-2107`	`110`	`2.7e-06`	`14.25`	`28.1`	`0.008`	`-7.00`	`-7.88`	`0`
`1997 UA11`	`2053-2073`	`2`	`1.5e-07`	`11.96`	`25.2`	`0.031`	`-7.02`	`-7.04`	`0`
`2003 YS70`	`2107-2107`	`1`	`1.8e-05`	`3.16`	`28.8`	`0.006`	`-7.13`	`-7.13`	`0`
`2006 UJ185`	`2052-2105`	`6`	`1.9e-06`	`15.44`	`27.9`	`0.009`	`-7.15`	`-7.74`	`0`
`2007 BB`	`2076-2076`	`1`	`3.1e-06`	`4.44`	`27.8`	`0.009`	`-7.21`	`-7.21`	`0`
`2006 YE`	`2082-2089`	`3`	`1.9e-06`	`6.03`	`27.3`	`0.012`	`-7.23`	`-7.37`	`0`
`2005 CC37`	`2100-2100`	`1`	`1.0e-08`	`8.45`	`22.7`	`0.099`	`-7.23`	`-7.23`	`0`
`2007 EN88`	`2032-2104`	`3`	`5.1e-07`	`12.16`	`26.4`	`0.017`	`-7.24`	`-7.38`	`0`
`2008 UA92`	`2063-2078`	`2`	`1.2e-06`	`8.39`	`27.3`	`0.012`	`-7.26`	`-7.28`	`0`
`2005 VP`	`2045-2107`	`27`	`8.8e-08`	`12.71`	`25.4`	`0.028`	`-7.27`	`-7.87`	`0`
`2006 AU3`	`2105-2105`	`1`	`5.8e-07`	`7.37`	`26.3`	`0.019`	`-7.29`	`-7.29`	`0`
`2005 TA`	`2099-2100`	`2`	`1.8e-06`	`4.82`	`27.2`	`0.012`	`-7.29`	`-7.32`	`0`
`2006 BF56`	`2092-2106`	`12`	`6.2e-06`	`26.18`	`29.6`	`0.004`	`-7.30`	`-7.71`	`0`
`2006 XV4`	`2101-2101`	`1`	`9.4e-08`	`9.20`	`24.9`	`0.036`	`-7.32`	`-7.32`	`0`
`2008 JD33`	`2012-2108`	`282`	`1.0e-06`	`4.20`	`28.3`	`0.008`	`-7.33`	`-8.04`	`0`
`2007 EE126`	`2065-2092`	`3`	`4.0e-08`	`30.50`	`25.6`	`0.025`	`-7.33`	`-7.53`	`0`
`2001 UO`	`2020-2020`	`1`	`3.0e-09`	`16.28`	`24.1`	`0.051`	`-7.35`	`-7.35`	`0`
`1991 BA`	`2014-2100`	`12`	`7.3e-07`	`17.88`	`28.7`	`0.006`	`-7.38`	`-7.82`	`0`
`2008 HC38`	`2029-2029`	`1`	`4.8e-08`	`14.05`	`26.1`	`0.020`	`-7.40`	`-7.40`	`0`
`2005 GQ33`	`2051-2103`	`7`	`6.1e-09`	`20.93`	`23.7`	`0.062`	`-7.44`	`-7.88`	`0`
`2006 DO62`	`2036-2079`	`11`	`1.5e-06`	`11.23`	`28.3`	`0.007`	`-7.45`	`-7.85`	`0`
`2005 UA1`	`2036-2036`	`1`	`7.8e-08`	`14.68`	`26.4`	`0.020`	`-7.46`	`-7.46`	`0`
`2006 UC64`	`2065-2094`	`5`	`2.3e-08`	`20.16`	`25.0`	`0.034`	`-7.49`	`-7.76`	`0`
`2000 SZ162`	`2070-2096`	`4`	`6.7e-07`	`4.16`	`27.1`	`0.013`	`-7.54`	`-7.95`	`0`
`2007 XB23`	`2078-2087`	`2`	`6.6e-07`	`4.57`	`27.1`	`0.013`	`-7.56`	`-7.81`	`0`
`2008 CJ`	`2033-2106`	`3`	`8.3e-07`	`8.07`	`27.3`	`0.012`	`-7.59`	`-7.60`	`0`
`2007 CS5`	`2107-2107`	`1`	`4.0e-08`	`5.10`	`24.5`	`0.043`	`-7.64`	`-7.64`	`0`
`2006 WC30`	`2073-2073`	`1`	`1.6e-08`	`9.12`	`24.3`	`0.047`	`-7.65`	`-7.65`	`0`
`2006 XZ2`	`2074-2097`	`4`	`4.1e-07`	`9.08`	`27.1`	`0.013`	`-7.66`	`-7.99`	`0`
`2008 CM74`	`2079-2100`	`7`	`1.8e-06`	`4.08`	`28.0`	`0.008`	`-7.67`	`-7.99`	`0`
`2001 YN2`	`2020-2020`	`1`	`3.2e-09`	`18.49`	`24.9`	`0.035`	`-7.67`	`-7.67`	`0`
`2007 YH1`	`2024-2079`	`12`	`1.1e-08`	`14.77`	`24.6`	`0.041`	`-7.69`	`-8.30`	`0`
`2008 VB4`	`2012-2106`	`21`	`3.1e-07`	`11.85`	`28.2`	`0.008`	`-7.71`	`-8.18`	`0`
`2005 UC3`	`2076-2101`	`2`	`4.8e-07`	`7.65`	`27.1`	`0.010`	`-7.71`	`-7.95`	`0`
`2007 VD8`	`2023-2107`	`73`	`3.1e-07`	`12.71`	`27.7`	`0.010`	`-7.74`	`-8.69`	`0`
`1998 BT13`	`2036-2036`	`1`	`6.0e-08`	`8.03`	`26.4`	`0.020`	`-7.79`	`-7.79`	`0`
`2007 FP3`	`2054-2106`	`10`	`1.4e-06`	`9.63`	`28.4`	`0.007`	`-7.80`	`-8.15`	`0`
`2007 YS56`	`2104-2104`	`1`	`7.1e-08`	`9.15`	`25.8`	`0.023`	`-7.91`	`-7.91`	`0`
`2004 XB45`	`2035-2035`	`1`	`1.6e-08`	`17.02`	`26.3`	`0.019`	`-7.99`	`-7.99`	`0`
`2008 HU4`	`2075-2079`	`2`	`8.4e-07`	`0.93`	`28.2`	`0.008`	`-8.01`	`-8.14`	`0`
`2007 EE26`	`2086-2086`	`1`	`6.2e-08`	`4.60`	`26.1`	`0.021`	`-8.12`	`-8.12`	`0`
`2005 SP1`	`2080-2080`	`1`	`9.6e-10`	`16.96`	`23.2`	`0.077`	`-8.17`	`-8.17`	`0`
`2008 GY21`	`2038-2108`	`20`	`1.1e-07`	`11.14`	`27.6`	`0.010`	`-8.22`	`-8.71`	`0`
`2006 BO7`	`2060-2067`	`3`	`7.6e-07`	`9.83`	`29.3`	`0.005`	`-8.30`	`-8.55`	`0`
`2008 EH85`	`2047-2061`	`3`	`3.5e-10`	`19.48`	`23.2`	`0.078`	`-8.31`	`-8.75`	`0`
`2006 WZ29`	`2060-2060`	`1`	`3.2e-09`	`11.55`	`24.7`	`0.039`	`-8.38`	`-8.38`	`0`
`2008 KT`	`2091-2107`	`5`	`4.1e-07`	`3.00`	`28.2`	`0.008`	`-8.43`	`-8.95`	`0`
`2004 OD4`	`2100-2100`	`1`	`5.8e-08`	`8.46`	`26.9`	`0.014`	`-8.53`	`-8.53`	`0`
`2001 HJ31`	`2098-2098`	`1`	`1.1e-09`	`11.41`	`23.7`	`0.063`	`-8.58`	`-8.58`	`0`
`2005 TK50`	`2027-2106`	`3`	`1.4e-07`	`20.67`	`28.8`	`0.006`	`-8.71`	`-8.76`	`0`
`2007 VJ3`	`2099-2099`	`1`	`1.6e-09`	`16.40`	`24.9`	`0.036`	`-8.86`	`-8.86`	`0`
`2008 EF32`	`2011-2083`	`5`	`7.3e-08`	`13.71`	`29.4`	`0.004`	`-9.02`	`-9.41`	`0`
`2004 XO63`	`2065-2065`	`1`	`4.5e-09`	`8.16`	`26.1`	`0.021`	`-9.04`	`-9.04`	`0`
`2006 UQ216`	`2102-2102`	`1`	`3.3e-08`	`3.75`	`27.3`	`0.012`	`-9.07`	`-9.07`	`0`
`2008 JL24`	`2091-2091`	`1`	`3.6e-07`	`2.72`	`29.6`	`0.004`	`-9.10`	`-9.10`	`0`
`2005 WN3`	`2024-2024`	`1`	`2.9e-08`	`18.17`	`29.9`	`0.004`	`-9.18`	`-9.18`	`0`
`2006 SV217`	`2097-2097`	`1`	`9.7e-10`	`9.32`	`24.7`	`0.039`	`-9.19`	`-9.19`	`0`
`2006 TF`	`2029-2029`	`1`	`6.7e-10`	`8.07`	`25.8`	`0.023`	`-9.30`	`-9.30`	`0`
`2008 WJ14`	`2031-2087`	`9`	`2.7e-09`	`10.25`	`26.7`	`0.016`	`-9.30`	`-9.84`	`0`
`2002 TA58`	`2081-2081`	`1`	`3.0e-09`	`11.30`	`26.6`	`0.020`	`-9.50`	`-9.50`	`0`

Table Legend

Coloration

The color of the table entries gives a rough interpretation of the severity of the threat. Small objects are not likely to cause significant damage in the event of an impact, although impact damage does depend heavily upon the specific (and usually unknown) physical properties of the object in question.

Small Objects	Torino Scale Colors
Estimated diameter 50 meters or less.	0	1	2,3,4	5,6,7	8,9,10

Object Designation

Temporary designation or permanent number for this object. Assigned by the Minor Planet Center.

Year Range

Time span over which impacts have been detected. Typically, searches are conducted 100 years into the future.

Potential Impacts

The number of dynamically distinct potential impacts that have been detected by Sentry. There can be several qualitatively unique pathways to impact in a given year, e.g., some with an extra revolutions around the sun, others deflected to impact by an earlier planetary encounter.

Impact Prob. (cum.)

The sum of the impact probabilities from all detected potential impacts.

V_infinity

The velocity of the asteroid relative to the Earth, assuming a massless Earth.

H

Absolute Magnitude is an intrinsic measure of brightness. It is the apparent magnitude of the object when it is 1 AU from both the sun and the observer, and at full phase for the observer.

Est. Diam.

The estimated diameter of the asteroid. This is an estimate based on the absolute magnitude, usually assuming a uniform spherical body with visual albedo p_V = 0.154 (in accordance with the Palermo Scale) but sometimes using actual measured values if these are available. Since the albedo is rarely known for objects on this page, the diameter estimate should be considered only approximate, but in most cases will be accurate to within a factor of two.

Palermo Scale (cum.) & (max.)

The cumulative and maximum hazard ratings according to the Palermo Technical Impact Hazard Scale.

Torino Scale (max.)

The maximum detected hazard rating using the Torino Impact Hazard Scale. According to this ten-point scale, a rating of zero indicates the event has "no likely consequences." A Torino Scale rating of 1 indicates an event that "merits careful monitoring." Even higher ratings indicate that progressively more concern is warranted. The Torino Scale is defined only for potential impacts less than 100 years in the future.

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