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JPL Small-Body Database Browser
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173271 (1999 RW253)
Classification: Main-belt Asteroid          SPK-ID: 2173271
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2408559809808959 7.2057e-08  
a 2.33615278749302 9.9851e-09 au
q 1.773476416140135 1.6809e-07 au
i 2.706937306884968 6.0309e-06 deg
node 330.8966217010552 0.00010021 deg
peri 354.1220479851652 0.00010072 deg
M 182.7794814504335 1.1329e-05 deg
tp 2459242.539567156077
(2021-Jan-28.03956716)
4.1966e-05 TDB
period 1304.218304222725
3.57
8.3616e-06
2.289e-08
d
yr
n .2760274095482422 1.7697e-09 deg/d
Q 2.898829158845906 1.239e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      7140 days (19.55 yr)  
   first obs. used      1999-07-20  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60768  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:10:13  

Additional Information
 Earth MOID = .760672 au 
 Jupiter MOID = 2.43998 au 
 T_jup = 3.527 
[ 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 16.8   n/a MPO436860  

173271 (1999 RW253)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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