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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835505949515899 5.4794e-08  
a 2.314255547521487 1.1316e-08 AU
q 1.8894725649039 1.2318e-07 AU
i 5.090354977800694 5.7136e-06 deg
node 11.17494432289798 6.2724e-05 deg
peri 343.4465042546248 6.4183e-05 deg
M 55.02486663617697 1.7207e-05 deg
tp 2456803.950521927647
(2014-May-26.45052193)
6.0903e-05 JED
period 1285.924281723317
3.52
9.4317e-06
2.582e-08
d
yr
n .2799542750040851 2.0533e-09 deg/d
Q 2.739038530139073 1.3393e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1123  
   data-arc span      22024 days (60.30 yr)  
   first obs. used      1954-11-23  
   last obs. used      2015-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52818  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:31:04  

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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