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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835505847933269 6.2679e-08  
a 2.314255549153753 1.2966e-08 AU
q 1.88947258974538 1.4453e-07 AU
i 5.090352046811106 6.7233e-06 deg
node 11.17496936733048 6.6469e-05 deg
peri 343.4464803922991 6.811e-05 deg
M 55.02486423056423 2.0153e-05 deg
tp 2456803.950530312582
(2014-May-26.45053031)
7.109e-05 JED
period 1285.924283083779
3.52
1.0807e-05
2.959e-08
d
yr
n .2799542747079035 2.3528e-09 deg/d
Q 2.739038508562127 1.5346e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      21896 days (59.95 yr)  
   first obs. used      1954-11-23  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54874  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:06:43  

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 14.3 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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