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266727 (2009 RX31)
Classification: Main-belt Asteroid          SPK-ID: 2266727
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 .04578902639369833 4.1344e-08  
a 2.579579157963907 2.5462e-08 au
q 2.461462739815264 1.0569e-07 au
i 4.750453288023729 6.752e-06 deg
node 330.9404402134024 5.5075e-05 deg
peri 107.3905939357569 0.00010472 deg
M 144.0887317691063 8.9525e-05 deg
tp 2458394.811631089648
(2018-Oct-03.31163109)
0.00037178 TDB
period 1513.28844476982
4.14
2.2405e-05
6.134e-08
d
yr
n .2378925189339948 3.5222e-09 deg/d
Q 2.697695576112551 2.6628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      226  
   data-arc span      6259 days (17.14 yr)  
   first obs. used      2003-03-07  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:29  

Additional Information
 Earth MOID = 1.48212 au 
 Jupiter MOID = 2.40159 au 
 T_jup = 3.419 
[ 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 MPO427481  

266727 (2009 RX31)          Discovered 2009-Sep-14 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 RX31 = 2007 DR56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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