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120884 (1998 RY50)
Classification: Main-belt Asteroid          SPK-ID: 2120884
[ 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 .08086938107816631 4.3212e-08  
a 3.082440159427212 2.2677e-08 au
q 2.833165131523849 1.4163e-07 au
i 9.675663145806306 5.2722e-06 deg
node 341.7002286332158 2.2702e-05 deg
peri 80.13144927962853 4.3698e-05 deg
M 343.6013331692269 3.4357e-05 deg
tp 2459290.542273050048
(2021-Mar-17.04227305)		 0.00018841 TDB
period 1976.698388504865
5.41		 2.1813e-05
5.972e-08		 d
yr
n .1821218664888459 2.0098e-09 deg/d
Q 3.331715187330575 2.4511e-08 au
   Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      8160 days (22.34 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48997  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:07  

Additional Information
 Earth MOID = 1.8654 au 
 Jupiter MOID = 1.93909 au 
 T_jup = 3.201 
[ 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 14.7   n/a MPO449702  

120884 (1998 RY50)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1998 RY50 = 1999 XG202 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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