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21300 (1996 WA1)
Classification: Main-belt Asteroid          SPK-ID: 2021300
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0859623088157912 1.4424e-08  
a 2.266241729481522 5.4981e-09 au
q 2.071430358080599 3.3543e-08 au
i 2.48527972986402 6.6071e-07 deg
node 285.8921595851743 1.681e-05 deg
peri 189.9239821812359 1.9972e-05 deg
M 344.7789472178989 1.1674e-05 deg
tp 2459253.186574884776
(2021-Feb-07.68657488)
4.0451e-05 TDB
period 1246.113999474693
3.41
4.5347e-06
1.242e-08
d
yr
n .2888981266174365 1.0513e-09 deg/d
Q 2.461053100882446 5.9707e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2251  
   data-arc span      8869 days (24.28 yr)  
   first obs. used      1996-11-19  
   last obs. used      2021-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46739  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:56:29  

Additional Information
 Earth MOID = 1.08772 au 
 Jupiter MOID = 2.59672 au 
 T_jup = 3.610 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.36   n/a E2021B10  

21300 (1996 WA1)          Discovered 1996-Nov-19 by Kobayashi, T. at Oizumi
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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