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JPL Small-Body Database Browser
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146634 (2001 US42)
Classification: Main-belt Asteroid          SPK-ID: 2146634
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0587759609964354 3.9356e-08  
a 2.66637279313457 2.0895e-08 au
q 2.509654169843335 1.0522e-07 au
i 1.409142757321284 5.1899e-06 deg
node 186.3655393380151 0.00018018 deg
peri 255.6791366268932 0.00018773 deg
M 319.7785074739772 5.0796e-05 deg
tp 2458778.178718089218
(2019-Oct-21.67871809)
0.00022482 TDB
period 1590.302460077393
4.35
1.8694e-05
5.118e-08
d
yr
n .2263720323884052 2.6609e-09 deg/d
Q 2.823091416425803 2.2123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      6653 days (18.21 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59077  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:37:32  

Additional Information
 Earth MOID = 1.52584 au 
 Jupiter MOID = 2.30215 au 
 T_jup = 3.380 
[ 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 16.2   n/a MPO417788  

146634 (2001 US42)          Discovered 2001-Oct-17 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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