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146376 (2001 QJ12)
Classification: Main-belt Asteroid          SPK-ID: 2146376
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3015622667156294 2.6912e-08  
a 2.696383961001177 9.501e-09 au
q 1.883256301785995 7.3952e-08 au
i 5.227775159975742 4.6315e-06 deg
node 327.4273834150907 3.6886e-05 deg
peri 98.87410788047269 3.8158e-05 deg
M 31.52340571870443 7.1154e-06 deg
tp 2458858.887476986185
(2020-Jan-10.38747699)
3.1836e-05 TDB
period 1617.227172085791
4.43
8.5477e-06
2.34e-08
d
yr
n .2226032348539483 1.1765e-09 deg/d
Q 3.509511620216359 1.2366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      985  
   data-arc span      8089 days (22.15 yr)  
   first obs. used      1997-12-06  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44775  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:36:59  

Additional Information
 Earth MOID = .905497 au 
 Jupiter MOID = 1.86723 au 
 T_jup = 3.297 
[ 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 15.6   n/a MPO502886  
diameter diameter 5.189 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146376 (2001 QJ12)          Discovered 2001-Aug-16 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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