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192639 (1999 RR20)
Classification: Main-belt Asteroid          SPK-ID: 2192639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1430576611699027 4.6646e-08  
a 2.733693247874876 2.6474e-08 au
q 2.342617485477942 1.3039e-07 au
i 24.78592583574018 6.5647e-06 deg
node 179.1857994158603 1.067e-05 deg
peri 120.0683229729073 2.441e-05 deg
M 296.3139951506137 2.4841e-05 deg
tp 2459492.554970420963
(2021-Oct-05.05497042)
0.0001159 TDB
period 1650.908855096126
4.52
2.3982e-05
6.566e-08
d
yr
n .2180617051563629 3.1676e-09 deg/d
Q 3.124769010271811 3.0261e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:58  

Additional Information
 Earth MOID = 1.40777 au 
 Jupiter MOID = 2.37975 au 
 T_jup = 3.206 
[ 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 15.59   n/a MPCxxxxx  

192639 (1999 RR20)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 1999 RR20 = 2002 GA124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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