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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144897904517243 5.483e-08  
a 3.09016051637473 4.9734e-08 au
q 2.64240273293011 1.8319e-07 au
i 21.4136942324202 7.3236e-06 deg
node 302.82694487622 1.457e-05 deg
peri 330.4794611496781 2.8925e-05 deg
M 306.7086975484872 2.7608e-05 deg
tp 2459494.213439764235
(2021-Oct-06.71343976)
0.00015441 TDB
period 1984.129369165438
5.43
4.7899e-05
1.311e-07
d
yr
n .1814397818986082 4.3802e-09 deg/d
Q 3.537918299819351 5.694e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51749  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:43:34  

Additional Information
 Earth MOID = 1.64134 au 
 Jupiter MOID = 1.74581 au 
 T_jup = 3.104 
[ show covariance matrix ]

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 14.89   n/a E2021B55  
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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