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469855 (2005 UU9)
Classification: Main-belt Asteroid          SPK-ID: 2469855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154843701644954 5.7056e-08  
a 2.410763886563239 1.0868e-08 au
q 1.891281948851848 1.3599e-07 au
i 5.67402180276256 8.0156e-06 deg
node 33.57264081714161 4.893e-05 deg
peri 25.68922297127378 5.2536e-05 deg
M 304.5255935057023 1.5449e-05 deg
tp 2459211.178688544037
(2020-Dec-27.67868854)
5.8342e-05 TDB
period 1367.19494031269
3.74
9.2454e-06
2.531e-08
d
yr
n .263312852750658 1.7806e-09 deg/d
Q 2.930245824274629 1.321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      5529 days (15.14 yr)  
   first obs. used      2005-09-25  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:34:58  

Additional Information
 Earth MOID = .905295 au 
 Jupiter MOID = 2.43096 au 
 T_jup = 3.481 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO440884  
diameter diameter 1.842 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

469855 (2005 UU9)          Discovered 2005-Oct-21 by NEAT at Palomar
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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