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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026060401229604 4.2702e-08  
a 3.184451298479817 1.9108e-08 au
q 2.857707360778384 1.3958e-07 au
i 15.69276196630066 4.655e-06 deg
node 304.7691265490797 1.6401e-05 deg
peri 84.56919777209673 2.8437e-05 deg
M 213.1907034726095 2.4003e-05 deg
tp 2459846.950178297339
(2022-Sep-24.45017830)
0.00014164 TDB
period 2075.631934726895
5.68
1.8682e-05
5.115e-08
d
yr
n .1734411549451168 1.561e-09 deg/d
Q 3.511195236181251 2.1068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1966  
   data-arc span      11645 days (31.88 yr)  
   first obs. used      1988-09-18  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43714  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:06:31  

Additional Information
 Earth MOID = 1.91651 au 
 Jupiter MOID = 1.96929 au 
 T_jup = 3.132 
[ 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 12.0   n/a MPO473986  
diameter diameter 27.713 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.033   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

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

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Alternate Designations
 1990 BO = 1998 MB27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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