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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134215526250563 5.3804e-08  
a 2.612346483690455 1.7561e-08 au
q 2.316050089515677 1.4025e-07 au
i 9.781835189749607 5.1298e-06 deg
node 244.7079743937462 3.2794e-05 deg
peri 45.14329642634942 4.366e-05 deg
M 208.1295899826797 3.2712e-05 deg
tp 2459651.101797670188
(2022-Mar-12.60179767)
0.0001431 TDB
period 1542.213833060411
4.22
1.555e-05
4.257e-08
d
yr
n .2334306645957171 2.3537e-09 deg/d
Q 2.908642877865233 1.9552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      6736 days (18.44 yr)  
   first obs. used      2001-08-17  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6007  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:08  

Additional Information
 Earth MOID = 1.31127 au 
 Jupiter MOID = 2.23405 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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