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173203 (1998 RD64)
Classification: Main-belt Asteroid          SPK-ID: 2173203
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2430891740443284 5.3835e-08  
a 2.568663049968557 1.3492e-08 au
q 1.944248870753515 1.3285e-07 au
i 4.412248920391504 4.7293e-06 deg
node 24.33715505346472 9.913e-05 deg
peri 12.73126492672165 0.00010044 deg
M 72.79227515015214 1.9447e-05 deg
tp 2458696.452156523131
(2019-Jul-31.95215652)
7.9881e-05 TDB
period 1503.692849631229
4.12
1.1847e-05
3.244e-08
d
yr
n .2394105951147454 1.8863e-09 deg/d
Q 3.193077229183599 1.6772e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      9238 days (25.29 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67718  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:00:40  

Additional Information
 Earth MOID = .951728 au 
 Jupiter MOID = 2.24367 au 
 T_jup = 3.385 
[ 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 16.4   n/a MPO502964  

173203 (1998 RD64)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1998 RD64 = 1994 TY9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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