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JPL Small-Body Database Browser
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146390 (2001 QJ87)
Classification: Main-belt Asteroid          SPK-ID: 2146390
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1133317390171542 5.3762e-08  
a 2.612368007858266 1.7531e-08 au
q 2.31630379857491 1.4016e-07 au
i 9.782901543632898 5.1542e-06 deg
node 244.7121633785426 3.3031e-05 deg
peri 45.01920722627735 4.3954e-05 deg
M 114.9094755548493 3.2426e-05 deg
tp 2458108.230075076027
(2017-Dec-20.73007508)
0.00013699 TDB
period 1542.232893474828
4.22
1.5525e-05
4.251e-08
d
yr
n .2334277796324774 2.3498e-09 deg/d
Q 2.908432217141621 1.9518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      6685 days (18.30 yr)  
   first obs. used      2001-08-17  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5963  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:36:09  

Additional Information
 Earth MOID = 1.31088 au 
 Jupiter MOID = 2.23304 au 
 T_jup = 3.379 
[ 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 MPO320581  

146390 (2001 QJ87)          Discovered 2001-Aug-17 by NEAT at Palomar
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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