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8258 (1982 RW1)
Classification: Main-belt Asteroid          SPK-ID: 2008258
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836363958427911 6.8707e-08  
a 2.314417993049303 1.2351e-08 AU
q 1.889406614332022 1.6002e-07 AU
i 5.090293733797659 7.3628e-06 deg
node 11.17556711792847 7.0641e-05 deg
peri 343.4360643369584 7.2432e-05 deg
M 359.039209173342 2.2305e-05 deg
tp 2456803.932317617655
(2014-May-26.43231762)
7.9699e-05 JED
period 1286.059679247531
3.52
1.0295e-05
2.819e-08
d
yr
n .279924801165242 2.2408e-09 deg/d
Q 2.739429371766582 1.4619e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      21412 days (58.62 yr)  
   first obs. used      1954-11-23  
   last obs. used      2013-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56782  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:54:58  

Additional Information
 Earth MOID = .884113 AU 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO266002  

8258 (1982 RW1)          Discovered 1982-Sep-15 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 RW1 = 1989 TZ13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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