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357189 (2002 ER142)
Classification: Main-belt Asteroid          SPK-ID: 2357189
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861015448309889 5.838e-08  
a 2.352055486614793 1.5517e-08 au
q 1.914334327027576 1.4089e-07 au
i 1.354785809430572 5.9596e-06 deg
node 101.4851190988027 0.00030709 deg
peri 152.68189154 0.00030779 deg
M 313.1851114241142 2.2622e-05 deg
tp 2459171.837041815961
(2020-Nov-18.33704182)
8.3676e-05 TDB
period 1317.55808739696
3.61
1.3038e-05
3.57e-08
d
yr
n .2732327351966969 2.7039e-09 deg/d
Q 2.789776646202009 1.8405e-08 au
  Orbit Determination Parameters
   # obs. used (total)      130  
   data-arc span      8115 days (22.22 yr)  
   first obs. used      1998-01-29  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60847  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 23:13:53  

Additional Information
 Earth MOID = .899779 au 
 Jupiter MOID = 2.25667 au 
 T_jup = 3.533 
[ 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 17.5   n/a MPO418816  

357189 (2002 ER142)          Discovered 2002-Mar-12 by NEAT at Palomar
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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