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JPL Small-Body Database Browser
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469475 (2002 RR257)
Classification: Main-belt Asteroid          SPK-ID: 2469475
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1261776889214505 1.0792e-07  
a 2.754606412263467 3.6617e-08 au
q 2.407036541275855 2.9243e-07 au
i 15.3308374142548 1.2007e-05 deg
node 151.3976011977196 3.4861e-05 deg
peri 209.1851407574576 5.6007e-05 deg
M 299.6681797219772 4.6513e-05 deg
tp 2459280.354107745857
(2021-Mar-06.85410775)
0.0002194 TDB
period 1669.889592660079
4.57
3.3296e-05
9.116e-08
d
yr
n .2155831149450616 4.2986e-09 deg/d
Q 3.10217628325108 4.1237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      6077 days (16.64 yr)  
   first obs. used      2002-08-12  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 13:57:59  

Additional Information
 Earth MOID = 1.41188 au 
 Jupiter MOID = 2.34314 au 
 T_jup = 3.281 
[ 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 16.9   n/a MPO346186  

469475 (2002 RR257)          Discovered 2002-Sep-15 by NEAT at Palomar
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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