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201889 (2004 BM9)
Classification: Main-belt Asteroid          SPK-ID: 2201889
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1634081853519827 4.5523e-08  
a 3.150094872025352 2.6825e-08 au
q 2.635343585301103 1.5303e-07 au
i 7.982288534777913 5.1357e-06 deg
node 123.233369079184 5.0791e-05 deg
peri 18.32349704951834 5.7672e-05 deg
M 326.6937893320518 2.7291e-05 deg
tp 2459189.432469591469
(2020-Dec-05.93246959)		 0.00015615 TDB
period 2042.13231373039
5.59		 2.6085e-05
7.142e-08		 d
yr
n .1762863246321113 2.2518e-09 deg/d
Q 3.664846158749601 3.1209e-08 au
   Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      7890 days (21.60 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52914  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:03:12  

Additional Information
 Earth MOID = 1.64992 au 
 Jupiter MOID = 1.37303 au 
 T_jup = 3.172 
[ 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 15.9   n/a MPO503057  
diameter diameter 3.730 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201889 (2004 BM9)          Discovered 2004-Jan-16 by NEAT at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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