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357870 (2005 US342)
Classification: Main-belt Asteroid          SPK-ID: 2357870
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0338383470842863 6.2772e-08  
a 3.049974372654064 5.3072e-08 au
q 2.946768281234017 1.9154e-07 au
i 10.07502648487382 9.7869e-06 deg
node 8.559651235803171 3.8146e-05 deg
peri 55.13325264815266 0.00015876 deg
M 238.1063522477764 0.00015879 deg
tp 2459659.250996564018
(2022-Mar-20.75099656)
0.00086522 TDB
period 1945.55141417302
5.33
5.0782e-05
1.39e-07
d
yr
n .1850375155225709 4.8297e-09 deg/d
Q 3.153180464074111 5.4868e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      4993 days (13.67 yr)  
   first obs. used      2005-09-23  
   last obs. used      2019-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:33:15  

Additional Information
 Earth MOID = 1.96928 au 
 Jupiter MOID = 1.95712 au 
 T_jup = 3.213 
[ 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 15.9   n/a MPO437512  

357870 (2005 US342)          Discovered 2005-Oct-29 by CSS at Catalina
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2005 US342 = 2008 HG28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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