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146631 (2001 UJ34)
Classification: Main-belt Asteroid          SPK-ID: 2146631
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295015112596098 4.6588e-08  
a 2.670609988955904 1.7836e-08 au
q 2.324761959401104 1.2786e-07 au
i 13.99129234186497 4.9493e-06 deg
node 70.60458467511602 2.3152e-05 deg
peri 48.63094982897457 4.063e-05 deg
M 26.55914099342013 2.8018e-05 deg
tp 2458882.895035764115
(2020-Feb-03.39503576)
0.00012445 TDB
period 1594.094746340164
4.36
1.5969e-05
4.372e-08
d
yr
n .2258335025734911 2.2624e-09 deg/d
Q 3.016458018510703 2.0146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      7655 days (20.96 yr)  
   first obs. used      1999-05-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:56:00  

Additional Information
 Earth MOID = 1.36495 au 
 Jupiter MOID = 2.21334 au 
 T_jup = 3.327 
[ 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 15.0   n/a MPO320584  
rotation period rot_per 8.814 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.]

146631 (2001 UJ34)          Discovered 2001-Oct-16 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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