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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835505897606011 5.5463e-08  
a 2.314255548383574 1.1414e-08 AU
q 1.889472577621026 1.2497e-07 AU
i 5.090355564354964 5.9217e-06 deg
node 11.17494386520465 6.2863e-05 deg
peri 343.4465052280361 6.4328e-05 deg
M 55.02486537153535 1.7345e-05 deg
tp 2456803.950526335136
(2014-May-26.45052634)
6.138e-05 JED
period 1285.92428244185
3.52
9.5132e-06
2.605e-08
d
yr
n .2799542748476557 2.0711e-09 deg/d
Q 2.739038519146123 1.3509e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      21942 days (60.07 yr)  
   first obs. used      1954-11-23  
   last obs. used      2014-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5423  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:24:59  

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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