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21253 (1996 AX3)
Classification: Main-belt Asteroid          SPK-ID: 2021253
[ 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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07638844646928666 3.1721e-08  
a 2.655224925836127 1.1772e-08 au
q 2.452396418724978 8.4777e-08 au
i 5.32572643560764 4.5694e-06 deg
node 331.7027041825222 3.8003e-05 deg
peri 266.6431245439452 4.9102e-05 deg
M 125.2083848057109 3.0006e-05 deg
tp 2458450.856224925437
(2018-Nov-28.35622493)		 0.00013194 TDB
period 1580.339522260312
4.33		 1.051e-05
2.877e-08		 d
yr
n .2277991500744744 1.5149e-09 deg/d
Q 2.858053432947276 1.2671e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1676  
   data-arc span      8709 days (23.84 yr)  
   first obs. used      1995-12-27  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52744  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:27:03  

Additional Information
 Earth MOID = 1.44759 au 
 Jupiter MOID = 2.16729 au 
 T_jup = 3.378 
[ 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 13.6   n/a MPO347687  
diameter diameter 11.836 km 0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21253 (1996 AX3)          Discovered 1996-Jan-13 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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