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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835505920923239 5.488e-08  
a 2.314255547903818 1.1324e-08 AU
q 1.889472571833126 1.2341e-07 AU
i 5.090355183386237 5.7431e-06 deg
node 11.17494442635706 6.2726e-05 deg
peri 343.4465041677265 6.4185e-05 deg
M 55.02486626296652 1.7213e-05 deg
tp 2456803.950523212052
(2014-May-26.45052321)
6.0925e-05 JED
period 1285.924282041982
3.52
9.4387e-06
2.584e-08
d
yr
n .2799542749347095 2.0549e-09 deg/d
Q 2.739038523974509 1.3403e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1067  
   data-arc span      22000 days (60.23 yr)  
   first obs. used      1954-11-23  
   last obs. used      2015-02-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53397  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:12:48  

Additional Information
 Earth MOID = .885761 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 14.4 mag n/a MPO319189  

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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