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120768 (1998 BM29)
Classification: Main-belt Asteroid          SPK-ID: 2120768
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1334665400350742 3.2719e-08  
a 2.409020973936769 9.4708e-09 au
q 2.087497279673504 8.0902e-08 au
i 2.400657044626187 3.1917e-06 deg
node 114.4956755150073 0.00012018 deg
peri 10.07193071834535 0.00012167 deg
M 355.9829689585357 1.9263e-05 deg
tp 2459015.739193571318
(2020-Jun-15.23919357)
7.3092e-05 TDB
period 1365.712544674433
3.74
8.0537e-06
2.205e-08
d
yr
n .263598662400673 1.5545e-09 deg/d
Q 2.730544668200034 1.0735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      10512 days (28.78 yr)  
   first obs. used      1991-04-18  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:22:46  

Additional Information
 Earth MOID = 1.10305 au 
 Jupiter MOID = 2.32411 au 
 T_jup = 3.507 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO453678  
rotation period rot_per 17.222 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

120768 (1998 BM29)          Discovered 1998-Jan-25 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 BM29 = 2000 TA71 = 2002 EC11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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