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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155495795466034 5.6202e-08  
a 2.410770224905289 1.0763e-08 au
q 1.891129716543483 1.3383e-07 au
i 5.674058694959862 7.1494e-06 deg
node 33.57146738141127 4.2301e-05 deg
peri 25.71785316271365 4.6339e-05 deg
M 357.172921661335 1.4599e-05 deg
tp 2459211.236617899596
(2020-Dec-27.73661790)
5.5425e-05 TDB
period 1367.200332227008
3.74
9.1556e-06
2.507e-08
d
yr
n .2633118143071269 1.7633e-09 deg/d
Q 2.930410733267094 1.3083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      5587 days (15.30 yr)  
   first obs. used      2005-09-25  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 18:13:40  

Additional Information
 Earth MOID = .904437 au 
 Jupiter MOID = 2.43143 au 
 T_jup = 3.481 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458249.5 (2018-May-11.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2163701794128711 5.6674e-08  
q 1.889192750746831 1.3503e-07 au
tp 2457840.803678179588
(2017-Mar-28.30367818)
5.7394e-05 TDB
node 33.69249119803527 4.2156e-05 deg
peri 25.03133329884768 4.6157e-05 deg
i 5.686045710638481 7.1618e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      5587 days (15.30 yr)  
   first obs. used      2005-09-25  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 18:13:40  

Additional Information
 Jupiter MOID = 2.43143 au 
 T_jup = 3.481 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.211900441088453E-15 -7.639108096700977E-15 -1.346942395912196E-12 1.028766186229557E-14 -2.852938908942727E-13 -1.131086827096556E-14
q -7.639108096700977E-15 1.823341233956727E-14 3.086495082730157E-12 -2.685722604700061E-14 6.479704475400048E-13 2.712745815456433E-14
tp -1.346942395912196E-12 3.086495082730157E-12 3.294068313505005E-9 -1.146035585821994E-11 1.078232933986135E-9 1.476551408165023E-11
node 1.028766186229557E-14 -2.685722604700061E-14 -1.146035585821994E-11 1.777144422473698E-9 -1.770137188882807E-9 -1.397315565211715E-10
peri -2.852938908942727E-13 6.479704475400048E-13 1.078232933986135E-9 -1.770137188882807E-9 2.130462572236961E-9 1.434265594186182E-10
i -1.131086827096556E-14 2.712745815456433E-14 1.476551408165023E-11 -1.397315565211715E-10 1.434265594186182E-10 5.129198685935798E-11

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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