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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07638841462231366 3.1693e-08  
a 2.65522492413709 1.0385e-08 au
q 2.452396501716605 8.4427e-08 au
i 5.325728559019295 3.8776e-06 deg
node 331.7026956109958 3.7454e-05 deg
peri 266.6431417436214 4.5217e-05 deg
M 125.2083815145397 2.6018e-05 deg
tp 2458450.856239900689
(2018-Nov-28.35623990)
0.00011347 TDB
period 1580.33952074346
4.33
9.2718e-06
2.538e-08
d
yr
n .2277991502931221 1.3365e-09 deg/d
Q 2.858053346557575 1.1179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1970  
   data-arc span      9091 days (24.89 yr)  
   first obs. used      1995-12-27  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:16:10  

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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