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JPL Small-Body Database Browser
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173269 (1999 RC218)
Classification: Main-belt Asteroid          SPK-ID: 2173269
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131408791077019 6.0692e-08  
a 2.353461412229319 1.4435e-08 au
q 1.851842577880709 1.4874e-07 au
i 1.876752274815503 5.0022e-06 deg
node 218.4430697388923 0.00018654 deg
peri 149.6117570319638 0.00018696 deg
M 133.4894505076628 1.5138e-05 deg
tp 2458111.506040509686
(2017-Dec-24.00604051)
5.3186e-05 TDB
period 1318.73960636618
3.61
1.2133e-05
3.322e-08
d
yr
n .2729879335253979 2.5116e-09 deg/d
Q 2.85508024657793 1.7512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      7171 days (19.63 yr)  
   first obs. used      1999-08-12  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5827  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:28:56  

Additional Information
 Earth MOID = .850363 au 
 Jupiter MOID = 2.6078 au 
 T_jup = 3.524 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO427056  

173269 (1999 RC218)          Discovered 1999-Sep-04 by CSS at Catalina
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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