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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461399671478948 8.7658e-08  
a 2.686089557540802 2.3323e-08 AU
q 2.293544517845486 2.3949e-07 AU
i 14.21541434906151 6.8186e-06 deg
node 110.2722407545563 4.0696e-05 deg
peri 316.7223127344699 4.75e-05 deg
M 347.7478382282679 2.6341e-05 deg
tp 2457055.225455018452
(2015-Feb-01.72545502)
0.00011787 JED
period 1607.974508800295
4.40
2.0943e-05
5.734e-08
d
yr
n .2238841461912197 2.916e-09 deg/d
Q 3.078634597236118 2.6732e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      6135 days (16.80 yr)  
   first obs. used      1998-01-12  
   last obs. used      2014-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47422  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:58:31  

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 (327)
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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