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146429 (2001 QQ258)
Classification: Main-belt Asteroid          SPK-ID: 2146429
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1994245219073824 7.0663e-08  
a 2.785613124917497 1.9196e-08 au
q 2.230093559261896 1.9702e-07 au
i 6.990016370850586 8.3609e-06 deg
node 228.9524754659194 4.5745e-05 deg
peri 114.3214818830808 5.0462e-05 deg
M 17.15631667787533 1.8581e-05 deg
tp 2458919.571557897560
(2020-Mar-11.07155790)
8.7413e-05 TDB
period 1698.163988453867
4.65
1.7554e-05
4.806e-08
d
yr
n .2119936604754941 2.1914e-09 deg/d
Q 3.341132690573098 2.3025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      6560 days (17.96 yr)  
   first obs. used      2000-04-29  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58363  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 05:46:48  

Additional Information
 Earth MOID = 1.23388 au 
 Jupiter MOID = 2.14772 au 
 T_jup = 3.291 
[ 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 16.1   n/a MPO436735  
diameter diameter 3.099 km 0.755 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146429 (2001 QQ258)          Discovered 2001-Aug-25 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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