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31230 (1998 BB47)
Classification: Main-belt Asteroid          SPK-ID: 2031230
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146139983727619 8.7131e-08  
a 2.686089554581323 2.1319e-08 AU
q 2.293544470783881 2.3776e-07 AU
i 14.21541409238276 6.5066e-06 deg
node 110.2722295814186 3.9465e-05 deg
peri 316.722319444796 4.5833e-05 deg
M 347.7478433761635 2.3761e-05 deg
tp 2457055.225431934439
(2015-Feb-01.72543193)
0.00010624 JED
period 1607.974506142845
4.40
1.9143e-05
5.241e-08
d
yr
n .2238841465612262 2.6654e-09 deg/d
Q 3.078634638378766 2.4435e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      827  
   data-arc span      6284 days (17.20 yr)  
   first obs. used      1998-01-12  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45137  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:34:10  

Additional Information
 Earth MOID = 1.32862 AU 
 T_jup = 3.315 
[ 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 13.4 mag n/a MPO313660  

31230 (1998 BB47)          Discovered 1998-Jan-18 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BB47 = 1978 NM6 = 1999 JX92 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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