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437100 (2012 US101)
Classification: Main-belt Asteroid          SPK-ID: 2437100
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01944007281375592 9.8373e-08  
a 3.073014545077941 6.8844e-08 au
q 3.013274918563894 3.0832e-07 au
i 11.53651890016532 1.1382e-05 deg
node 48.13954008029158 4.1688e-05 deg
peri 12.82482696090319 0.00025614 deg
M 127.7594431982638 0.00025055 deg
tp 2458302.209939577539
(2018-Jul-02.70993958)
0.0013685 TDB
period 1967.63867671194
5.39
6.6121e-05
1.81e-07
d
yr
n .1829604206609645 6.1482e-09 deg/d
Q 3.132754171591987 7.0182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      6274 days (17.18 yr)  
   first obs. used      2001-10-11  
   last obs. used      2018-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:51:05  

Additional Information
 Earth MOID = 2.025 au 
 Jupiter MOID = 1.94823 au 
 T_jup = 3.199 
[ 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 16.5   n/a MPO437695  

437100 (2012 US101)          Discovered 2007-Nov-03 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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