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266724 (2009 RN18)
Classification: Main-belt Asteroid          SPK-ID: 2266724
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08794865271447072 6.6301e-08  
a 2.34460089446235 2.0994e-08 au
q 2.138396404641243 1.5821e-07 au
i 3.129879945546584 5.1462e-06 deg
node 126.2657747896602 0.00012865 deg
peri 88.15828167732613 0.00013239 deg
M 148.2683613767709 3.1366e-05 deg
tp 2458460.432798156241
(2018-Dec-07.93279816)
0.00011254 TDB
period 1311.299260735025
3.59
1.7613e-05
4.822e-08
d
yr
n .2745368740604707 3.6874e-09 deg/d
Q 2.550805384283457 2.2841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      5077 days (13.90 yr)  
   first obs. used      2004-02-29  
   last obs. used      2018-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69472  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 08:45:10  

Additional Information
 Earth MOID = 1.13442 au 
 Jupiter MOID = 2.4147 au 
 T_jup = 3.555 
[ 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 17.4   n/a MPO437228  

266724 (2009 RN18)          Discovered 2009-Sep-12 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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