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182000 (1999 WX20)
Classification: Main-belt Asteroid          SPK-ID: 2182000
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04837392739117679 5.4763e-08  
a 3.122928262183231 3.7138e-08 au
q 2.971859957180526 1.7143e-07 au
i 16.58369007842277 7.6425e-06 deg
node 50.86278634122789 2.1862e-05 deg
peri 222.0387891118168 0.00010104 deg
M 64.39526219792427 9.4249e-05 deg
tp 2458839.927289996854
(2019-Dec-22.42729000)
0.00053072 TDB
period 2015.772141779036
5.52
3.5957e-05
9.844e-08
d
yr
n .1785916138727262 3.1857e-09 deg/d
Q 3.273996567185937 3.8934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      7646 days (20.93 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:57  

Additional Information
 Earth MOID = 1.97284 au 
 Jupiter MOID = 1.76902 au 
 T_jup = 3.149 
[ 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 15.13   n/a E2021B55  

182000 (1999 WX20)          Discovered 1999-Nov-16 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1999 WX20 = 2002 HB3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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