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146372 (2001 QE2)
Classification: Main-belt Asteroid          SPK-ID: 2146372
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2106891449263523 6.9359e-08  
a 2.573079885194602 1.7414e-08 au
q 2.030959884355755 1.702e-07 au
i 6.028039238504329 4.8987e-06 deg
node 242.4522384486161 5.653e-05 deg
peri 91.98309239594138 5.9012e-05 deg
M 197.2390270819447 2.4105e-05 deg
tp 2459682.094548092848
(2022-Apr-12.59454809)
0.00010693 TDB
period 1507.572932959567
4.13
1.5305e-05
4.19e-08
d
yr
n .2387944172579909 2.4242e-09 deg/d
Q 3.11519988603345 2.1083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      8228 days (22.53 yr)  
   first obs. used      1997-10-08  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:54:26  

Additional Information
 Earth MOID = 1.03206 au 
 Jupiter MOID = 2.30788 au 
 T_jup = 3.389 
[ 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 15.7   n/a MPO412892  

146372 (2001 QE2)          Discovered 2001-Aug-16 by Nomen, J. at Ametlla de Mar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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