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117197 (2004 RR171)
Classification: Main-belt Asteroid          SPK-ID: 2117197
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06511607934320682 2.9483e-08  
a 2.36915042205797 1.0961e-08 au
q 2.214880635199251 7.2933e-08 au
i 6.411366416348433 4.3506e-06 deg
node 191.6771489101985 3.0047e-05 deg
peri 281.6199012738433 4.9543e-05 deg
M 3.23249906092084 3.7401e-05 deg
tp 2458988.540217347310
(2020-May-19.04021735)
0.0001384 TDB
period 1331.948338986372
3.65
9.2437e-06
2.531e-08
d
yr
n .2702807529862338 1.8758e-09 deg/d
Q 2.523420208916689 1.1675e-08 au
  Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      8125 days (22.25 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50557  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:44:11  

Additional Information
 Earth MOID = 1.24168 au 
 Jupiter MOID = 2.53386 au 
 T_jup = 3.535 
[ 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 15.8   n/a MPO502790  

117197 (2004 RR171)          Discovered 2004-Sep-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 RR171 = 2003 KT19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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