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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154844021511308 8.5309e-08  
a 2.410763875753855 2.5628e-08 au
q 1.891281863259492 2.1852e-07 au
i 5.674024430201059 1.0462e-05 deg
node 33.57268657877925 0.00010202 deg
peri 25.68915307228554 0.00011762 deg
M 304.525619637466 6.1458e-05 deg
tp 2459211.178587884812
(2020-Dec-27.67858788)
0.00023627 TDB
period 1367.194931117347
3.74
2.1802e-05
5.969e-08
d
yr
n .2633128545216213 4.1988e-09 deg/d
Q 2.930245888248217 3.1151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      4582 days (12.54 yr)  
   first obs. used      2005-09-25  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58435  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:31:20  

Additional Information
 Earth MOID = .905295 au 
 Jupiter MOID = 2.43096 au 
 T_jup = 3.481 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457376.5 (2015-Dec-20.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2167621085661486 8.7827e-08  
q 1.887937564781954 2.26e-07 au
tp 2457840.833279862009
(2017-Mar-28.33327986)
0.00021439 TDB
node 33.69594135058596 0.00010168 deg
peri 25.036668747464 0.00011705 deg
i 5.686294480648806 1.0482e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      4582 days (12.54 yr)  
   first obs. used      2005-09-25  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58435  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:31:20  

Additional Information
 Jupiter MOID = 2.43096 au 
 T_jup = 3.481 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.713560707649916E-15 -1.979826339101258E-14 -1.51588438194005E-11 1.638541052436009E-13 -4.007419036761437E-12 -5.798974210952515E-14
q -1.979826339101258E-14 5.107648807692001E-14 4.040643984429555E-11 -4.331634507478691E-13 1.069517401112335E-11 1.541735208466844E-13
tp -1.51588438194005E-11 4.040643984429555E-11 4.596374277132135E-8 -4.741981507910888E-10 1.25606977245576E-8 1.708165789838085E-10
node 1.638541052436009E-13 -4.331634507478691E-13 -4.741981507910888E-10 1.0338657042291E-8 -1.041337160932947E-8 -8.131455131427365E-10
peri -4.007419036761437E-12 1.069517401112335E-11 1.25606977245576E-8 -1.041337160932947E-8 1.370140869139155E-8 8.542245964876671E-10
i -5.798974210952515E-14 1.541735208466844E-13 1.708165789838085E-10 -8.131455131427365E-10 8.542245964876671E-10 1.098747035754042E-10

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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