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173251 (1999 RD73)
Classification: Main-belt Asteroid          SPK-ID: 2173251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2432873375349526 5.4403e-08  
a 2.377570310597975 1.438e-08 au
q 1.799137559930444 1.252e-07 au
i 1.178225076320955 4.6959e-06 deg
node 260.2249353750871 0.00024482 deg
peri 105.2085311696408 0.00024506 deg
M 222.3507791954458 1.7055e-05 deg
tp 2459512.499735768035
(2021-Oct-24.99973577)
6.7315e-05 TDB
period 1339.055199870729
3.67
1.2149e-05
3.326e-08
d
yr
n .2688462731295572 2.4391e-09 deg/d
Q 2.956003061265507 1.7879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      7537 days (20.64 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52532  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:25:27  

Additional Information
 Earth MOID = .797879 au 
 Jupiter MOID = 2.5094 au 
 T_jup = 3.500 
[ 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 17.0   n/a MPO412970  

173251 (1999 RD73)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1999 RD73 = 2003 YP28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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