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160957 (2002 AD142)
Classification: Main-belt Asteroid          SPK-ID: 2160957
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2102248426068552 7.899e-08  
a 2.466565247498281 2.1603e-08 au
q 1.948031956563416 1.9112e-07 au
i 2.487865049832372 8.9181e-06 deg
node 170.1127456135182 0.00010548 deg
peri 197.43338600 0.00010618 deg
M 348.0762777530834 1.2838e-05 deg
tp 2459047.364791523691
(2020-Jul-16.86479152)
5.0781e-05 TDB
period 1414.937768522039
3.87
1.8589e-05
5.089e-08
d
yr
n .2544281508408917 3.3426e-09 deg/d
Q 2.985098538433146 2.6145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      5942 days (16.27 yr)  
   first obs. used      2001-12-14  
   last obs. used      2018-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61758  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 16:14:26  

Additional Information
 Earth MOID = .947025 au 
 Jupiter MOID = 2.47645 au 
 T_jup = 3.455 
[ 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 16.8   n/a MPO436811  
rotation period rot_per 5.070 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.]

160957 (2002 AD142)          Discovered 2002-Jan-13 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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