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JPL Small-Body Database Browser
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146420 (2001 QA220)
Classification: Main-belt Asteroid          SPK-ID: 2146420
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07337989824343776 4.9745e-08  
a 2.561647245922105 1.5097e-08 au
q 2.373673831680758 1.2933e-07 au
i 14.37626519264339 7.059e-06 deg
node 313.4468520199118 1.4023e-05 deg
peri 138.0003004865079 7.0205e-05 deg
M 48.82042778639163 6.3312e-05 deg
tp 2458397.415633029834
(2018-Oct-05.91563303)
0.00026358 TDB
period 1497.536490854731
4.10
1.3238e-05
3.624e-08
d
yr
n .2403948098750683 2.1251e-09 deg/d
Q 2.749620660163451 1.6204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      6432 days (17.61 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54902  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:56:19  

Additional Information
 Earth MOID = 1.40687 au 
 Jupiter MOID = 2.37275 au 
 T_jup = 3.387 
[ 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 15.2   n/a MPO273257  

146420 (2001 QA220)          Discovered 2001-Aug-23 by LINEAR at Socorro
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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