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181257 (2005 UW363)
Classification: Main-belt Asteroid          SPK-ID: 2181257
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660705786329247 3.5993e-08  
a 3.016286201872564 2.4064e-08 au
q 2.515369807005081 1.1027e-07 au
i 5.493428831851928 4.1799e-06 deg
node 77.64068751773033 5.7073e-05 deg
peri 221.2759491518654 6.0905e-05 deg
M 46.78080949959853 1.8474e-05 deg
tp 2458951.859151127195
(2020-Apr-12.35915113)
9.8779e-05 TDB
period 1913.406513304945
5.24
2.2898e-05
6.269e-08
d
yr
n .1881461140101313 2.2516e-09 deg/d
Q 3.517202596740048 2.8061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      7328 days (20.06 yr)  
   first obs. used      2000-11-16  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54099  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:52  

Additional Information
 Earth MOID = 1.50089 au 
 Jupiter MOID = 1.70548 au 
 T_jup = 3.220 
[ 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 15.97   n/a E2021B55  
diameter diameter 3.139 km 0.758 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181257 (2005 UW363)          Discovered 2005-Oct-27 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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