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JPL Small-Body Database Browser
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109644 (2001 RO2)
Classification: Main-belt Asteroid          SPK-ID: 2109644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1858167734651986 6.8339e-08  
a 2.559760323930814 1.9653e-08 au
q 2.084113919693758 1.7173e-07 au
i 4.679773007498064 7.422e-06 deg
node 142.8899367130506 7.143e-05 deg
peri 176.8540280126539 7.4075e-05 deg
M 128.6293467679557 2.4861e-05 deg
tp 2458066.015709371474
(2017-Nov-08.51570937)
9.861e-05 TDB
period 1495.882156452062
4.10
1.7228e-05
4.717e-08
d
yr
n .2406606686544409 2.7716e-09 deg/d
Q 3.035406728167869 2.3305e-08 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2000-05-04  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57367  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:04:00  

Additional Information
 Earth MOID = 1.07033 au 
 Jupiter MOID = 2.27558 au 
 T_jup = 3.407 
[ 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 16.1   n/a MPO412773  

109644 (2001 RO2)          Discovered 2001-Sep-09 by Comba, P. G. at Prescott
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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