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120681 (1997 BB6)
Classification: Main-belt Asteroid          SPK-ID: 2120681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0173288584674854 4.6597e-08  
a 2.735704888861383 2.2017e-08 au
q 2.688298246033496 1.3191e-07 au
i 9.7979874797599 6.9706e-06 deg
node 312.3645197624621 2.83e-05 deg
peri 307.1049326877109 0.00021008 deg
M 295.4561454271192 0.00020704 deg
tp 2459296.815721253554
(2021-Mar-23.31572125)
0.00094972 TDB
period 1652.731470055401
4.52
1.9952e-05
5.463e-08
d
yr
n .2178212289912605 2.6296e-09 deg/d
Q 2.783111531689269 2.2399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      8478 days (23.21 yr)  
   first obs. used      1997-01-31  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:39:27  

Additional Information
 Earth MOID = 1.68133 au 
 Jupiter MOID = 2.28324 au 
 T_jup = 3.331 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO338105  
rotation period rot_per 2.87 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

120681 (1997 BB6)          Discovered 1997-Jan-31 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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