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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03104241710712552 4.4095e-08  
a 2.305889440823015 9.6243e-09 au
q 2.23430905899807 9.812e-08 au
i 7.313678170892364 3.6874e-06 deg
node 63.92836776081036 3.6233e-05 deg
peri 152.6471666884459 8.4573e-05 deg
M 87.84534212726986 7.7737e-05 deg
tp 2458288.415366291017
(2018-Jun-18.91536629)		 0.00027619 TDB
period 1278.957602242145
3.50		 8.0072e-06
2.192e-08		 d
yr
n .2814792291541822 1.7623e-09 deg/d
Q 2.377469822647959 9.9231e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1457  
   data-arc span      13908 days (38.08 yr)  
   first obs. used      1981-10-30  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50529  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 04:51:24  

Additional Information
 Earth MOID = 1.22684 au 
 Jupiter MOID = 2.59249 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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