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16461 (1990 BO)
Classification: Main-belt Asteroid          SPK-ID: 2016461
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034786724158274 7.1107e-08  
a 3.184187553359863 3.9794e-08 AU
q 2.854692052615183 2.323e-07 AU
i 15.69097910859786 8.6758e-06 deg
node 304.7906370960227 2.126e-05 deg
peri 85.46532624581882 5.3565e-05 deg
M 190.7890739172073 4.8875e-05 deg
tp 2457775.988803633731
(2017-Jan-22.48880363)
0.0002902 JED
period 2075.374075645194
5.68
3.8905e-05
1.065e-07
d
yr
n .1734627044948911 3.2517e-09 deg/d
Q 3.513683054104544 4.3911e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      980  
   data-arc span      9268 days (25.37 yr)  
   first obs. used      1988-09-18  
   last obs. used      2014-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50616  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:24:56  

Additional Information
 Earth MOID = 1.91292 AU 
 T_jup = 3.132 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9 mag n/a MPO266043  

16461 (1990 BO)          Discovered 1990-Jan-21 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 BO = 1998 MB27 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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