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229869 (2009 UZ4)
Classification: Main-belt Asteroid          SPK-ID: 2229869
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 .1235848901228714 4.2444e-08  
a 3.05007607428224 3.105e-08 au
q 2.67313275777567 1.3849e-07 au
i .9512544281696875 6.4612e-06 deg
node 197.668660434205 0.00034347 deg
peri 225.9558603471581 0.0003451 deg
M 337.9412781702719 3.1732e-05 deg
tp 2459119.718122342756
(2020-Sep-27.21812234)
0.00017193 TDB
period 1945.648726824766
5.33
2.9711e-05
8.134e-08
d
yr
n .1850282607732117 2.8254e-09 deg/d
Q 3.427019390788809 3.4888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60606  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 01:14:34  

Additional Information
 Earth MOID = 1.68651 au 
 Jupiter MOID = 1.87075 au 
 T_jup = 3.225 
[ 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 15.8   n/a MPO454655  
diameter diameter 3.284 km 1.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

229869 (2009 UZ4)          Discovered 2009-Oct-20 by Lowe, A. at Mayhill
Reference: 20091231/Numbers.arcLast Updated: 2010-01-04

[ show close-approach data ]
Alternate Designations
 2009 UZ4 = 2003 SN256 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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