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85566 (1998 BM9)
Classification: Main-belt Asteroid          SPK-ID: 2085566
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1984307322003469 3.8017e-08  
a 2.801662774352796 1.4537e-08 au
q 2.245726778659516 1.0952e-07 au
i .8554279285570175 4.4228e-06 deg
node 292.5204407672015 0.00029842 deg
peri 72.83394525340205 0.00029866 deg
M 20.9677649579864 1.1474e-05 deg
tp 2458900.736459057870
(2020-Feb-21.23645906)
5.4424e-05 TDB
period 1712.861376075625
4.69
1.3331e-05
3.65e-08
d
yr
n .2101746265216184 1.6358e-09 deg/d
Q 3.357598770046077 1.7421e-08 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      8230 days (22.53 yr)  
   first obs. used      1998-01-18  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5946  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:56:13  

Additional Information
 Earth MOID = 1.24417 au 
 Jupiter MOID = 2.10746 au 
 T_jup = 3.295 
[ 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 15.2   n/a MPO351442  
diameter diameter 2.600 km 0.585 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85566 (1998 BM9)          Discovered 1998-Jan-18 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 BM9 = 2001 VC25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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