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226143 (2002 RN157)
Classification: Main-belt Asteroid          SPK-ID: 2226143
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1716274871713971 5.3283e-08  
a 2.321529942416313 1.3651e-08 au
q 1.923091592006243 1.2637e-07 au
i 1.650686584313036 5.1026e-06 deg
node 310.5074511315718 0.00018443 deg
peri 292.8964177004003 0.00018541 deg
M 93.26237172171071 1.5302e-05 deg
tp 2458665.793754734293
(2019-Jul-01.29375473)
5.55e-05 TDB
period 1291.992108620208
3.54
1.1395e-05
3.12e-08
d
yr
n .2786394727940439 2.4576e-09 deg/d
Q 2.719968292826384 1.5994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      6705 days (18.36 yr)  
   first obs. used      2001-02-22  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63757  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:50:56  

Additional Information
 Earth MOID = .910789 au 
 Jupiter MOID = 2.30199 au 
 T_jup = 3.557 
[ 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 16.9   n/a MPO433481  

226143 (2002 RN157)          Discovered 2002-Sep-11 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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