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268091 (2004 RK231)
Classification: Main-belt Asteroid          SPK-ID: 2268091
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2017950351949488 4.8713e-08  
a 2.625312507562376 1.8906e-08 au
q 2.095537477701087 1.3629e-07 au
i 4.7548036319034 8.0837e-06 deg
node 4.159226767345922 7.7344e-05 deg
peri 304.2493854859936 8.1644e-05 deg
M 295.1913691736555 2.6587e-05 deg
tp 2459280.205034875373
(2021-Mar-06.70503488)
0.00011644 TDB
period 1553.70991905298
4.25
1.6783e-05
4.595e-08
d
yr
n .2317034831182823 2.5029e-09 deg/d
Q 3.155087537423664 2.2721e-08 au
  Orbit Determination Parameters
   # obs. used (total)      159  
   data-arc span      10510 days (28.77 yr)  
   first obs. used      1991-09-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5546  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:15:17  

Additional Information
 Earth MOID = 1.08555 au 
 Jupiter MOID = 2.13214 au 
 T_jup = 3.369 
[ 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 17.1   n/a MPO433740  

268091 (2004 RK231)          Discovered 2004-Sep-09 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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