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(2007 US12)
Classification: Aten [NEO]          SPK-ID: 3390647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5146648719664865 2.4013e-07  
a .9060992590919752 3.155e-09 au
q .4397617999224755 2.1854e-07 au
i 8.804432174452224 1.4705e-05 deg
node 211.1032177782518 3.6393e-05 deg
peri 44.65310648983944 3.5864e-05 deg
M 169.7545983049999 4.9574e-05 deg
tp 2459051.947099343114
(2020-Jul-21.44709934)
4.3134e-05 TDB
period 315.0373820236231
0.86
1.6454e-06
4.505e-09
d
yr
n 1.142721532560873 5.9684e-09 deg/d
Q 1.372436718261475 4.7788e-09 au
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      4801 days (13.14 yr)  
   first obs. used      2007-10-30  
   last obs. used      2020-12-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67188  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 01:01:24  

Additional Information
 Earth MOID = .0135587 au 
 Jupiter MOID = 3.69029 au 
 T_jup = 6.450 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.1   n/a MPO599040  

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