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21315 (1996 XN17)
Classification: Main-belt Asteroid          SPK-ID: 2021315
[ 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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685431528633723 3.3995e-08  
a 2.553216133508647 1.0477e-08 au
q 2.122889036425471 8.9705e-08 au
i 13.79222895774224 3.5154e-06 deg
node 66.20762664446767 1.9928e-05 deg
peri 356.834495697639 2.5932e-05 deg
M 320.6965069373107 1.9038e-05 deg
tp 2459363.189095929553
(2021-May-28.68909593)		 7.9357e-05 TDB
period 1490.149347316855
4.08		 9.1724e-06
2.511e-08		 d
yr
n .2415865232892339 1.4871e-09 deg/d
Q 2.983543230591823 1.2243e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1046  
   data-arc span      10302 days (28.21 yr)  
   first obs. used      1992-11-24  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:43:14  

Additional Information
 Earth MOID = 1.13578 au 
 Jupiter MOID = 2.35042 au 
 T_jup = 3.379 
[ 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 14.76   n/a E2021B10  
diameter diameter 4.332 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.149   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21315 (1996 XN17)          Discovered 1996-Dec-05 by Spacewatch at Kitt Peak
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 XN17 = 1992 WU4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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