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181256 (2005 UD359)
Classification: Outer Main-belt Asteroid          SPK-ID: 2181256
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102464816522401 6.0359e-08  
a 3.963255305982509 6.0922e-08 au
q 3.526320352608366 2.3112e-07 au
i 4.105736328104769 4.3084e-06 deg
node 99.82312385726844 9.5386e-05 deg
peri 89.86405339246906 9.7457e-05 deg
M 192.8789025791321 2.2895e-05 deg
tp 2460538.343397064246
(2024-Aug-15.84339706)
0.00020132 TDB
period 2881.884037239392
7.89
6.645e-05
1.819e-07
d
yr
n .12491828100927 2.8803e-09 deg/d
Q 4.400190259356654 6.7639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      10566 days (28.93 yr)  
   first obs. used      1992-02-01  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56032  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:52  

Additional Information
 Earth MOID = 2.52977 au 
 Jupiter MOID = .598901 au 
 T_jup = 3.043 
[ 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 14.19   n/a MPCxxxxx  
diameter diameter 11.977 km 0.413 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.028   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

181256 (2005 UD359)          Discovered 2005-Oct-25 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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