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JPL Small-Body Database Browser
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203471 (2002 AU4)
Classification: Aten [NEO]          SPK-ID: 2203471
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 79 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3735540867680905 1.0024e-07  
a .8554980166401488 1.9242e-09 au
q .5359232363022254 8.5393e-08 au
i 17.18463351533626 1.2044e-05 deg
node 99.45325064314466 9.7046e-06 deg
peri 205.1659900255005 2.3344e-05 deg
M 123.0363725449602 4.4718e-05 deg
tp 2458501.722517093713
(2019-Jan-18.22251709)
3.5703e-05 TDB
period 289.0193615978791
0.79
9.7512e-07
2.67e-09
d
yr
n 1.245591291911018 4.2025e-09 deg/d
Q 1.175072796978072 2.643e-09 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      8456 days (23.15 yr)  
   first obs. used      1994-01-07  
   last obs. used      2017-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48857  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-09 06:31:10  

Additional Information
 Earth MOID = .0891385 au 
 Jupiter MOID = 4.04569 au 
 T_jup = 6.801 
[ 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 19.4   n/a MPO396551  
rotation period rot_per 13.26 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 223-237.]
[Fornas, G.; Carre]

203471 (2002 AU4)          Discovered 2002-Jan-08 by LINEAR at Socorro
Reference: 20090111/Numbers.arcLast Updated: 2009-02-03

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