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56340 (1999 XE176)
Classification: Main-belt Asteroid          SPK-ID: 2056340
[ 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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03083951736761012 3.8684e-08  
a 2.30600529386158 8.6367e-09 au
q 2.234889203551734 8.7209e-08 au
i 7.313387418266746 3.5424e-06 deg
node 63.92890433092158 3.2941e-05 deg
peri 152.4321809237777 8.2289e-05 deg
M 200.670470780634 7.7121e-05 deg
tp 2459566.586305751243
(2021-Dec-18.08630575)		 0.00027426 TDB
period 1279.05398998491
3.50		 7.1857e-06
1.967e-08		 d
yr
n .281458017268096 1.5812e-09 deg/d
Q 2.377121384171425 8.9031e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1539  
   data-arc span      14260 days (39.04 yr)  
   first obs. used      1981-10-30  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50594  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:38:16  

Additional Information
 Earth MOID = 1.22746 au 
 Jupiter MOID = 2.59179 au 
 T_jup = 3.576 
[ 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 14.6   n/a MPO452935  
diameter diameter 2.791 km 0.496 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.299   0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56340 (1999 XE176)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XE176 = 1981 UZ7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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