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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333929820422406 3.2159e-08  
a 2.408731190142104 9.4008e-09 au
q 2.087423353750893 7.9394e-08 au
i 2.400677308215945 3.172e-06 deg
node 114.495441748591 0.00011968 deg
peri 10.02216630805379 0.00012118 deg
M 48.74976342261623 1.9291e-05 deg
tp 2459015.594025899479
(2020-Jun-15.09402590)
7.2957e-05 TDB
period 1365.466127478806
3.74
7.9938e-06
2.189e-08
d
yr
n .2636462324149361 1.5434e-09 deg/d
Q 2.730039026533314 1.0655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      751  
   data-arc span      10874 days (29.77 yr)  
   first obs. used      1991-04-18  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53095  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 21:41:15  

Additional Information
 Earth MOID = 1.1029 au 
 Jupiter MOID = 2.32412 au 
 T_jup = 3.508 
[ 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 16.05   n/a E2021B55  
rotation period rot_per 17.222 h n/a LCDB (Rev. 2020-October); 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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