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109681 (2001 RO26)
Classification: Main-belt Asteroid          SPK-ID: 2109681
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0757743756705877 5.4881e-08  
a 3.093678117074852 2.442e-08 au
q 2.859256589227746 1.671e-07 au
i 2.664049072366872 5.6051e-06 deg
node 127.1567371384881 9.8955e-05 deg
peri 214.7379120484933 0.00010302 deg
M 160.0700600038623 3.0221e-05 deg
tp 2458116.771783224823
(2017-Dec-29.27178322)
0.00016406 TDB
period 1987.51820316296
5.44
2.3533e-05
6.443e-08
d
yr
n .1811304165300684 2.1446e-09 deg/d
Q 3.328099644921958 2.627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      635  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:07:25  

Additional Information
 Earth MOID = 1.8513 au 
 Jupiter MOID = 1.98945 au 
 T_jup = 3.218 
[ 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 14.9   n/a MPO432618  

109681 (2001 RO26)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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