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22861 (1999 RY149)
Classification: Main-belt Asteroid          SPK-ID: 2022861
[ 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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2076226798562272 5.7049e-08  
a 2.28017616260697 7.4928e-09 au
q 1.806759877182223 1.2705e-07 au
i 6.16667755125913 3.9473e-06 deg
node 331.7667473276094 4.4272e-05 deg
peri 20.19799632109973 4.5909e-05 deg
M 57.72505286523541 1.4979e-05 deg
tp 2458998.843201911550
(2020-May-29.34320191)		 5.1664e-05 TDB
period 1257.624613724051
3.44		 6.199e-06
1.697e-08		 d
yr
n .2862539394278995 1.411e-09 deg/d
Q 2.753592448031717 9.0485e-09 au
   Orbit Determination Parameters
   # obs. used (total)      896  
   data-arc span      13994 days (38.31 yr)  
   first obs. used      1982-10-21  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:56  

Additional Information
 Earth MOID = .800508 au 
 Jupiter MOID = 2.68156 au 
 T_jup = 3.570 
[ 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 15.88   n/a E2021B10  

22861 (1999 RY149)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RY149 = 1982 UX8 = 1992 OK9 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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