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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146139967447108 8.7563e-08  
a 2.686089559286315 2.154e-08 AU
q 2.293544518532196 2.3912e-07 AU
i 14.21541379630889 6.5268e-06 deg
node 110.2722364020529 3.9979e-05 deg
peri 316.7223182109174 4.6316e-05 deg
M 347.747836293133 2.4162e-05 deg
tp 2457055.225463715261
(2015-Feb-01.72546372)
0.00010804 JED
period 1607.97451036767
4.40
1.9342e-05
5.296e-08
d
yr
n .2238841459729884 2.693e-09 deg/d
Q 3.078634600040434 2.4688e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      6220 days (17.03 yr)  
   first obs. used      1998-01-12  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4559  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:24:49  

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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