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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2110425693798546 7.9033e-08  
a 2.467492539906702 2.112e-08 au
q 1.946746574359168 1.9179e-07 au
i 2.487433732328564 8.9171e-06 deg
node 170.1785877720181 0.00010551 deg
peri 197.33031474 0.0001062 deg
M 246.456536919766 1.2132e-05 deg
tp 2459047.020944463371
(2020-Jul-16.52094446)
5.06e-05 TDB
period 1415.735751279871
3.88
1.8177e-05
4.977e-08
d
yr
n .2542847418203208 3.2648e-09 deg/d
Q 2.988238505454235 2.5578e-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 = .94488 au 
 Jupiter MOID = 2.46983 au 
 T_jup = 3.454 
[ 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-January); 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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