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227350 (2005 UJ81)
Classification: Main-belt Asteroid          SPK-ID: 2227350
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1834620688995115 6.5831e-08  
a 2.573187164447731 1.9884e-08 au
q 2.101104923592483 1.773e-07 au
i 7.582256153613173 6.5933e-06 deg
node 239.9469375340078 4.1029e-05 deg
peri 109.5578476523805 4.3363e-05 deg
M 288.3290059766878 1.496e-05 deg
tp 2459500.655577983079
(2021-Oct-13.15557798)
6.3753e-05 TDB
period 1507.667216653381
4.13
1.7476e-05
4.785e-08
d
yr
n .2387794839759824 2.7677e-09 deg/d
Q 3.045269405302979 2.3532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      6735 days (18.44 yr)  
   first obs. used      2001-12-14  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:25  

Additional Information
 Earth MOID = 1.10845 au 
 Jupiter MOID = 2.45513 au 
 T_jup = 3.393 
[ 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 16.86   n/a E2021B55  
diameter diameter 3.005 km 0.705 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227350 (2005 UJ81)          Discovered 2005-Oct-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 UJ81 = 2001 XB145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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