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146406 (2001 QU189)
Classification: Main-belt Asteroid          SPK-ID: 2146406
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1246074216637084 4.4988e-08  
a 2.690238152412794 1.4086e-08 au
q 2.355014512579297 1.2294e-07 au
i 13.86885610476543 4.6138e-06 deg
node 259.9537665085592 2.063e-05 deg
peri 136.4538960825317 3.3627e-05 deg
M 48.19140525490202 2.2168e-05 deg
tp 2458784.749600893279
(2019-Oct-28.24960089)
9.9574e-05 TDB
period 1611.701158486532
4.41
1.2658e-05
3.466e-08
d
yr
n .2233664709517601 1.7543e-09 deg/d
Q 3.025461792246292 1.5841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      6732 days (18.43 yr)  
   first obs. used      2001-08-22  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4884  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:13  

Additional Information
 Earth MOID = 1.38372 au 
 Jupiter MOID = 2.38054 au 
 T_jup = 3.319 
[ 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 MPO453929  
diameter diameter 2.152 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.219   0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146406 (2001 QU189)          Discovered 2001-Aug-22 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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