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173264 (1999 RD179)
Classification: Main-belt Asteroid          SPK-ID: 2173264
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2128654020316235 5.388e-08  
a 2.414120876343025 1.0469e-08 au
q 1.900238065447332 1.2909e-07 au
i 3.531002764326543 4.2585e-06 deg
node 68.1527580013046 8.2912e-05 deg
peri 290.9750527294107 8.3341e-05 deg
M 181.6525668330367 9.3168e-06 deg
tp 2459679.236659734402
(2022-Apr-09.73665973)
3.7557e-05 TDB
period 1370.051663573068
3.75
8.9122e-06
2.44e-08
d
yr
n .2627638136368718 1.7093e-09 deg/d
Q 2.928003687238718 1.2698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      7529 days (20.61 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:25:51  

Additional Information
 Earth MOID = .900331 au 
 Jupiter MOID = 2.52683 au 
 T_jup = 3.484 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO454189  

173264 (1999 RD179)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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