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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08598988357807923 1.4421e-08  
a 2.26625923980623 5.4472e-09 au
q 2.071383871617546 3.3544e-08 au
i 2.485085194175602 6.5938e-07 deg
node 285.889780711656 1.6775e-05 deg
peri 189.8678504210376 1.9825e-05 deg
M 41.45126977224225 1.1423e-05 deg
tp 2459253.017760519709
(2021-Feb-07.51776052)
3.9436e-05 TDB
period 1246.12844182386
3.41
4.4928e-06
1.23e-08
d
yr
n .2888947783529413 1.0416e-09 deg/d
Q 2.461134607994914 5.9157e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2350  
   data-arc span      8951 days (24.51 yr)  
   first obs. used      1996-11-19  
   last obs. used      2021-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:59:29  

Additional Information
 Earth MOID = 1.08819 au 
 Jupiter MOID = 2.59641 au 
 T_jup = 3.610 
[ 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 14.37   n/a MPCxxxxx  

21300 (1996 WA1)          Discovered 1996-Nov-19 by Kobayashi, T. at Oizumi
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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