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173272 (1999 RG258)
Classification: Main-belt Asteroid          SPK-ID: 2173272
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566562666821567 5.2048e-08  
a 2.348099163168556 1.0719e-08 au
q 1.980254714467074 1.2311e-07 au
i 2.578012000793426 5.7582e-06 deg
node 168.8992068183834 0.00010165 deg
peri 199.4183214491047 0.00010293 deg
M 265.9113157845813 1.4975e-05 deg
tp 2459343.985154833026
(2021-May-09.48515483)
5.5348e-05 TDB
period 1314.235147095675
3.60
8.999e-06
2.464e-08
d
yr
n .2739235826979389 1.8756e-09 deg/d
Q 2.715943611870038 1.2398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      9636 days (26.38 yr)  
   first obs. used      1992-11-18  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5695  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:32:51  

Additional Information
 Earth MOID = .979392 au 
 Jupiter MOID = 2.74531 au 
 T_jup = 3.542 
[ 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 17.0   n/a MPO436860  

173272 (1999 RG258)          Discovered 1999-Sep-03 by Spacewatch at Kitt Peak
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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