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190366 (1999 RW39)
Classification: Main-belt Asteroid          SPK-ID: 2190366
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 .2828858852826214 6.3148e-08  
a 2.719201711331257 1.1892e-08 au
q 1.949977927959295 1.7221e-07 au
i 4.466691882858016 5.6497e-06 deg
node 347.2686019414962 6.3039e-05 deg
peri 12.09094604766196 6.3384e-05 deg
M 271.6867020337829 8.9676e-06 deg
tp 2459602.276162897639
(2022-Jan-22.77616290)
4.2082e-05 TDB
period 1637.798858994935
4.48
1.0744e-05
2.942e-08
d
yr
n .219807211381818 1.4419e-09 deg/d
Q 3.488425494703218 1.5256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      1999-09-12  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53097  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:20  

Additional Information
 Earth MOID = .945117 au 
 Jupiter MOID = 1.97072 au 
 T_jup = 3.296 
[ 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 15.96   n/a E2021B55  

190366 (1999 RW39)          Discovered 1999-Sep-12 by CSS at Catalina
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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