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9981 (1995 BS3)
Classification: Main-belt Asteroid          SPK-ID: 2009981
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02520721788733974 4.1878e-08  
a 2.67667376262348 2.0663e-08 AU
q 2.609202263875705 1.1454e-07 AU
i 2.510396056820496 6.0032e-06 deg
node 164.9354683554855 0.00010992 deg
peri 280.2252595220255 0.00017858 deg
M 202.6903869279445 0.00014283 deg
tp 2457499.447171597136
(2016-Apr-20.94717160)
0.00063818 JED
period 1599.52705280455
4.38
1.8522e-05
5.071e-08
d
yr
n .2250665278644645 2.6062e-09 deg/d
Q 2.744145261371256 2.1184e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1143  
   data-arc span      13679 days (37.45 yr)  
   first obs. used      1977-01-20  
   last obs. used      2014-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5457  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:23:05  

Additional Information
 Earth MOID = 1.62593 AU 
 T_jup = 3.377 
[ 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 13.8 mag n/a MPO266011  

9981 (1995 BS3)          Discovered 1995-Jan-31 by Kobayashi, T. at Oizumi (411)
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 BS3 = 1977 BJ = 1997 QO4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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