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JPL Small-Body Database Browser
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109821 (2001 RN109)
Classification: Main-belt Asteroid          SPK-ID: 2109821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0576294124859441 7.7012e-08  
a 2.58441169745489 1.8242e-08 au
q 2.435473569708763 1.9223e-07 au
i .5493726413248651 5.7929e-06 deg
node 333.400277230383 0.00061293 deg
peri 32.27930860611767 0.00061468 deg
M 165.6349069416743 4.8096e-05 deg
tp 2458302.283124530540
(2018-Jul-02.78312453)
0.00020107 TDB
period 1517.542888815807
4.15
1.6068e-05
4.399e-08
d
yr
n .2372255852886773 2.5117e-09 deg/d
Q 2.733349825201016 1.9294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      9630 days (26.37 yr)  
   first obs. used      1993-09-18  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62308  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:33:45  

Additional Information
 Earth MOID = 1.43319 au 
 Jupiter MOID = 2.51879 au 
 T_jup = 3.420 
[ 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 16.5   n/a MPO268015  

109821 (2001 RN109)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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