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Near Earth Asteroids

Sexta-feira, 04.03.11

 

Potentially Hazardous Asteroids are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On March 4, 2011 there were 1203 potentially hazardous asteroids.

 

Recent & Upcoming Earth-asteroid encounters:

 

Asteroid

Date(UT)

Miss Distance

Mag.

Size

2011 EB

Feb 26

2.4 LD

--

18 m

2011 DQ

Feb 26

9.7 LD

--

26 m

2011 DT9

Feb 27

9 LD

--

39 m

2011 DE5

Mar 1

4.9 LD

--

22 m

2011 DW4

Mar 3

6.9 LD

--

15 m

2011 EC

Mar 6

9.2 LD

--

33 m

2000 PN9

Mar 10

45.5 LD

--

2.6 km

2002 DB4

Apr 15

62.5 LD

--

2.2 km

2008 UC202

Apr 27

8.9 LD

--

10 m

2009 UK20

May 2

8.6 LD

--

23 m

2008 FU6

May 5

75.5 LD

--

1.2 km

2003 YT1

May 5

65.3 LD

--

2.5 km

2002 JC

Jun 1

57.5 LD

--

1.6 km

2009 BD

Jun 2

0.9 LD

--

9 m

2002 JB9

Jun 11

71.5 LD

--

3.2 km

2001 VH75

Jun 12

42.2 LD

--

1.1 km

2004 LO2

Jun 15

9.9 LD

--

48 m

 

 

Notes:

LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

 

SpaceWeather.com

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publicado por Produções Anormais - Albufeira às 19:34