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243421 (2009 BC187)
Classification: Main-belt Asteroid          SPK-ID: 2243421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449175438053844 5.4803e-08  
a 3.090914426839323 4.9791e-08 au
q 2.642986699989141 1.8316e-07 au
i 21.41363389534708 7.3235e-06 deg
node 302.8269708541138 1.4569e-05 deg
peri 330.3845200532309 2.8925e-05 deg
M 270.5208477684284 2.7354e-05 deg
tp 2459493.842192153829
(2021-Oct-06.34219215)
0.00015443 TDB
period 1984.855519369946
5.43
4.796e-05
1.313e-07
d
yr
n .1813734029942265 4.3825e-09 deg/d
Q 3.538842153689505 5.7006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      7251 days (19.85 yr)  
   first obs. used      2000-06-11  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:48:08  

Additional Information
 Earth MOID = 1.64392 au 
 Jupiter MOID = 1.74552 au 
 T_jup = 3.103 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457906.5 (2017-Jun-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444322846216462 5.4683e-08  
q 2.645612073109982 1.8279e-07 au
tp 2457506.298459681079
(2016-Apr-27.79845968)
0.00014612 TDB
node 302.8510207562708 1.4574e-05 deg
peri 330.0921637268787 2.9026e-05 deg
i 21.40560310188118 7.321e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      7251 days (19.85 yr)  
   first obs. used      2000-06-11  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:48:08  

Additional Information
 Jupiter MOID = 1.74552 au 
 T_jup = 3.103 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.99028470734359E-15 -9.733812211736807E-15 2.109343804719182E-12 -1.030256826885187E-15 4.183832639601837E-13 2.503752271719734E-15
q -9.733812211736807E-15 3.341369775318117E-14 -6.343102470678872E-12 3.147079965132547E-16 -1.207619536674536E-12 -5.928316481439682E-15
tp 2.109343804719182E-12 -6.343102470678872E-12 2.13511004112753E-8 -3.607963156683121E-11 3.691070334168394E-9 -1.708295163437774E-11
node -1.030256826885187E-15 3.147079965132547E-16 -3.607963156683121E-11 2.124133032651505E-10 -2.037584912667677E-10 3.119805472568685E-11
peri 4.183832639601837E-13 -1.207619536674536E-12 3.691070334168394E-9 -2.037584912667677E-10 8.425180194429804E-10 -3.195569626921786E-11
i 2.503752271719734E-15 -5.928316481439682E-15 -1.708295163437774E-11 3.119805472568685E-11 -3.195569626921786E-11 5.359694827848426E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO326093  
diameter diameter 5.216 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.092   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243421 (2009 BC187)          Discovered 2009-Jan-26 by LINEAR at Socorro
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 BC187 = 2008 TO176 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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