* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Home -> Astronomy News -> Solar System -> Asteroid 2009 BD
Post Info
TOPIC: Asteroid 2009 BD
Blobrana


L

Posts: 131433
Date:
RE: Asteroid 2009 BD
Permalink  
 

Asteroid 2009 BD makes its closest approach to the Earth (0.300 AU) on the 9th July 2014

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     Mag
2014 07 01    09 21 59.4 +14 34 59   1.5684  1.0147    39.4    39.5    30.7
2014 07 02    09 25 45.7 +14 17 25   1.5677  1.0142    39.4    39.5    30.7
2014 07 03    09 29 31.6 +13 59 37   1.5670  1.0138    39.4    39.6    30.7
2014 07 04    09 33 17.0 +13 41 34   1.5663  1.0133    39.4    39.6    30.7
2014 07 05    09 37 02.1 +13 23 19   1.5656  1.0129    39.4    39.6    30.7
2014 07 06    09 40 46.8 +13 04 49   1.5648  1.0125    39.4    39.6    30.7
2014 07 07    09 44 31.0 +12 46 07   1.5641  1.0121    39.5    39.7    30.7
2014 07 08    09 48 14.9 +12 27 13   1.5634  1.0118    39.5    39.7    30.7
2014 07 09    09 51 58.5 +12 08 05   1.5627  1.0114    39.5    39.7    30.7
2014 07 10    09 55 41.6 +11 48 46   1.5619  1.0111    39.5    39.7    30.7
2014 07 11    09 59 24.4 +11 29 15   1.5612  1.0107    39.5    39.8    30.7
2014 07 12    10 03 06.8 +11 09 33   1.5605  1.0104    39.5    39.8    30.7
2014 07 13    10 06 49.0 +10 49 40   1.5598  1.0101    39.5    39.8    30.7
2014 07 14    10 10 30.7 +10 29 35   1.5591  1.0098    39.5    39.9    30.7
2014 07 15    10 14 12.2 +10 09 20   1.5584  1.0095    39.6    39.9    30.7
2014 07 16    10 17 53.4 +09 48 55   1.5576  1.0093    39.6    39.9    30.7
2014 07 17    10 21 34.2 +09 28 21   1.5569  1.0090    39.6    39.9    30.7
2014 07 18    10 25 14.8 +09 07 36   1.5562  1.0088    39.6    40.0    30.7
2014 07 19    10 28 55.2 +08 46 42   1.5555  1.0086    39.6    40.0    30.7
2014 07 20    10 32 35.3 +08 25 39   1.5548  1.0083    39.6    40.0    30.7
2014 07 21    10 36 15.2 +08 04 28   1.5542  1.0082    39.7    40.0    30.7
2014 07 22    10 39 54.9 +07 43 08   1.5535  1.0080    39.7    40.1    30.7
2014 07 23    10 43 34.3 +07 21 41   1.5528  1.0078    39.7    40.1    30.7
2014 07 24    10 47 13.6 +07 00 06   1.5521  1.0077    39.7    40.1    30.7
2014 07 25    10 50 52.7 +06 38 23   1.5515  1.0075    39.7    40.1    30.7
2014 07 26    10 54 31.6 +06 16 34   1.5508  1.0074    39.8    40.2    30.7
2014 07 27    10 58 10.4 +05 54 38   1.5502  1.0073    39.8    40.2    30.7
2014 07 28    11 01 49.1 +05 32 35   1.5495  1.0072    39.8    40.2    30.7
2014 07 29    11 05 27.6 +05 10 27   1.5489  1.0071    39.8    40.2    30.7
2014 07 30    11 09 06.0 +04 48 13   1.5483  1.0071    39.8    40.2    30.7
2014 07 31    11 12 44.3 +04 25 55   1.5476  1.0070    39.9    40.3    30.7


__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Title: Detection of radiation pressure acting on 2009 BD
Authors: Marco Micheli, David J. Tholen, Garrett T. Elliott

We report the direct detection of radiation pressure on the asteroid 2009 BD, one of the smallest multi-opposition near-Earth objects currently known, with H ~ 28.4. Under the purely gravitational model of NEODyS the object is currently considered a possible future impactor, with impact solutions starting in 2071. The detection of a radiation-related acceleration allows us to estimate an Area to Mass Ratio (AMR) for the object, that can be converted (under some assumptions) into a range of possible values for its average density. Our result AMR = (2.97 ±0.33) x 10^(-4) m^2 kg^(-1) is compatible with the object being of natural origin, and it is narrow enough to exclude a man-made nature. The possible origin of this object, its future observability, and the importance of radiation pressure in the impact monitoring process, are also discussed.

Read more  (34kb, PDF)



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

2009 BD Goldstone Radar Observations Planning

2009 BD will approach within 0.0023 AU (~0.90 lunar distances) on June 2, 2011, and will remain within 10 lunar distances of Earth for two months starting in early May.
Due to the close approach, 2009 BD should be a strong radar target, and the short round-trip travel times will require bistatic observations by transmitting at DSS-14 and receiving with DSS-13.
Other than its absolute magnitude, nothing is known about the physical properties
of this object.  2009 BD will remain too close to the Sun for optical observations until early June when the solar elongations rapidly increase to more than 100 degrees.
Goldstone radar observations are scheduled on May 28, 29, and 30 and on June 5 and 7.

Read more 



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

The 5.7 - 13 metre wide asteroid 2009 BD will make a close pass (0.9 lunar distances, 0.0023 AU), travelling at 0.73 km/second, to the Earth-Moon system on the 2nd June, 2011 @ 00:51 UT ±00:01.

See more

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Asteroid 2009 BD To Narrowly Miss Earth On June 2

A 10-metre wide asteroid is set to pass between the earth and moon on Thursday, June 2 next.  However, scientists claim it is of no threat to the Earth.
Asteroid 2009 BD, which was first observed on 16 January 2009 will pass approximately within 0.9 lunar distances (the distance between Earth and the Moon) of earth.  Astronomers believe the rock is a rare "co-orbital asteroid" which follows the orbit of the Earth, not receding more than 0.1 AU (15 million km) away.
Source



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Google Earth file: Asteroid 2009 BD.kmz (18kb, kmz)

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2011 05 07    05 15 17.6 +24 14 38   0.02141 0.9912    33.9   145.4    28.1
2011 05 08    05 17 14.3 +24 00 14   0.02058 0.9920    33.3   146.0    28.1
2011 05 09    05 19 13.4 +23 44 23   0.01976 0.9928    32.8   146.6    28.1
2011 05 10    05 21 15.3 +23 26 57   0.01894 0.9936    32.3   147.2    28.1
2011 05 11    05 23 20.2 +23 07 44   0.01813 0.9944    31.8   147.7    28.1
2011 05 12    05 25 28.7 +22 46 32   0.01732 0.9953    31.3   148.2    28.1
2011 05 13    05 27 41.3 +22 23 04   0.01651 0.9961    30.8   148.7    28.1
2011 05 14    05 29 58.9 +21 57 04   0.01571 0.9969    30.3   149.2    28.1
2011 05 15    05 32 22.5 +21 28 08   0.01491 0.9978    29.9   149.6    28.0
2011 05 16    05 34 53.4 +20 55 51   0.01412 0.9986    29.6   150.0    28.0
2011 05 17    05 37 33.5 +20 19 40   0.01334 0.9995    29.3   150.4    27.9
2011 05 18    05 40 25.1 +19 38 54   0.01256 1.0004    29.0   150.6    27.8
2011 05 19    05 43 31.0 +18 52 42   0.01178 1.0012    28.9   150.8    27.7
2011 05 20    05 46 55.1 +17 59 58   0.01101 1.0021    28.8   150.9    27.6
2011 05 21    05 50 42.0 +16 59 17   0.01024 1.0030    29.0   150.8    27.4
2011 05 22    05 54 57.7 +15 48 45   0.0094721.0039    29.3   150.5    27.2
2011 05 23    05 59 50.2 +14 25 50   0.0087091.0048    29.8   149.9    26.9
2011 05 24    06 05 30.3 +12 46 58   0.0079501.0057    30.7   149.0    26.6
2011 05 25    06 12 13.1 +10 47 10   0.0071931.0066    32.1   147.7    26.1
2011 05 26    06 20 20.2 +08 19 07   0.0064401.0076    34.1   145.7    25.5
2011 05 27    06 30 25.0 +05 11 49   0.0056921.0086    36.9   142.9    24.9
2011 05 28    06 43 20.9 +01 08 11   0.0049551.0095    40.9   138.9    24.0
2011 05 29    07 00 40.5 -04 18 52   0.0042361.0106    46.8   133.0    23.0
2011 05 30    07 25 20.0 -11 51 41   0.0035541.0116    55.4   124.4    21.8
2011 05 31    08 03 34.3 -22 27 08   0.0029491.0127    68.4   111.5    20.4
2011 06 01    09 10 10.8 -36 22 06   0.0024971.0139    87.5    92.4    19.1
2011 06 02    11 14 05.1 -49 08 22   0.0023141.0150   112.4    67.5    18.0
2011 06 03    13 57 23.6 -50 08 57   0.0024741.0161   137.5    42.4    17.4
2011 06 04    15 46 12.5 -41 41 59   0.0029151.0171   157.0    23.0    17.3
2011 06 05    16 43 12.1 -32 49 40   0.0035221.0180   169.5    10.4    17.2
2011 06 06    17 15 49.5 -25 53 58   0.0042141.0189   174.0     5.9    17.4
2011 06 07    17 36 42.4 -20 42 59   0.0049491.0197   170.9     9.1    17.9
2011 06 08    17 51 13.5 -16 47 40   0.0057061.0205   167.1    12.9    18.4
2011 06 09    18 01 56.0 -13 45 35   0.0064751.0213   164.0    15.9    18.8
2011 06 10    18 10 10.6 -11 21 29   0.0072511.0221   161.7    18.2    19.1
2011 06 11    18 16 43.9 -09 25 06   0.0080301.0228   159.9    20.0    19.4
2011 06 12    18 22 04.5 -07 49 29   0.0088121.0236   158.5    21.3    19.6
2011 06 13    18 26 30.6 -06 29 48   0.0095951.0244   157.4    22.4    19.8
2011 06 14    18 30 14.9 -05 22 35   0.01038 1.0251   156.6    23.2    20.0
2011 06 15    18 33 25.8 -04 25 20   0.01116 1.0259   155.9    23.8    20.2
2011 06 16    18 36 09.8 -03 36 11   0.01195 1.0267   155.4    24.3    20.4
2011 06 17    18 38 31.3 -02 53 45   0.01273 1.0274   155.1    24.6    20.5
2011 06 18    18 40 34.0 -02 16 56   0.01352 1.0282   154.8    24.9    20.7
2011 06 19    18 42 20.5 -01 44 56   0.01431 1.0290   154.7    25.0    20.8
2011 06 20    18 43 53.0 -01 17 06   0.01510 1.0298   154.6    25.1    20.9


__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

A 10-meter wide asteroid is set to pass between the earth and moon on June 2, but scientists say it is of no threat to Earth.
Asteroid 2009 BD, which was first observed on January 16, 2009, will pass within 0.9 lunar distances (the distance between Earth and the Moon) of Earth. Astronomers believe the rock is a rare co-orbital asteroid which follows the orbit of the Earth, not receding more than 0.1 AU (15 million km) away.
Read more



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

The 5.7 - 13 metre wide asteroid 2009 BD will make a close pass (10.6 lunar distances, 0.0272 AU), travelling at 0.73 km/second, to the Earth-Moon system on the 12th July, 2010 @ 02:21 UT.

See more

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Asteroid 2009 BD has just passed the Earth.

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Update:
The 5.7 - 13 metre wide asteroid 2009 BD will make a close pass (9.1 lunar distances, 0.0235 AU), travelling at 0.89 km/second, to the Earth-Moon system on the 7th May, 2010.

See more

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

__________________
1 2 3  >  Last»  | Page of 3  sorted by
 
Quick Reply

Please log in to post quick replies.
Home -> Astronomy News -> Solar System -> Asteroid 2009 BD


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard