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190781 (2001 QO285)
Classification: Main-belt Asteroid          SPK-ID: 2190781
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1892039605430118 6.9841e-08  
a 2.302129012364727 1.2989e-08 au
q 1.866557085544349 1.6201e-07 au
i 5.742314609333619 6.3938e-06 deg
node 99.34595909848086 6.5168e-05 deg
peri 249.9773655657154 6.6294e-05 deg
M 176.8085921586521 1.3461e-05 deg
tp 2458573.895110765343
(2019-Mar-31.39511077)		 4.5559e-05 TDB
period 1275.830305362441
3.49		 1.0798e-05
2.956e-08		 d
yr
n .2821691869889628 2.3881e-09 deg/d
Q 2.737700939185105 1.5447e-08 au
   Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      8282 days (22.67 yr)  
   first obs. used      1997-05-03  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60291  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 22:57:45  

Additional Information
 Earth MOID = .867623 au 
 Jupiter MOID = 2.69391 au 
 T_jup = 3.560 
[ 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 17.3   n/a MPO527428  

190781 (2001 QO285)          Discovered 2001-Aug-23 by NEAT at Haleakala
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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