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190722 (2001 ON39)
Classification: Main-belt Asteroid          SPK-ID: 2190722
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816995670830304 4.899e-08  
a 2.309888612973114 1.0476e-08 au
q 1.890182851985878 1.1307e-07 au
i 6.221038698368774 4.6852e-06 deg
node 86.73197250753029 4.9468e-05 deg
peri 285.9274016866906 5.1343e-05 deg
M 155.6981675469078 1.5386e-05 deg
tp 2458645.917725913578
(2019-Jun-11.41772591)
5.3242e-05 TDB
period 1282.286245346867
3.51
8.7234e-06
2.388e-08
d
yr
n .2807485468290409 1.9099e-09 deg/d
Q 2.729594373960351 1.238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      412  
   data-arc span      9788 days (26.80 yr)  
   first obs. used      1993-04-15  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5274  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 21:23:39  

Additional Information
 Earth MOID = .900846 au 
 Jupiter MOID = 2.7524 au 
 T_jup = 3.555 
[ 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 16.39   n/a E2021B55  

190722 (2001 ON39)          Discovered 2001-Jul-20 by NEAT at Palomar
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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