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58641 (1997 WX20)
Classification: Main-belt Asteroid          SPK-ID: 2058641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1896979044894666 6.2124e-08  
a 2.628519932352592 1.6016e-08 au
q 2.129895209276511 1.6208e-07 au
i 33.00769095389845 5.7087e-06 deg
node 64.1323725967638 8.6588e-06 deg
peri 317.9902203022495 1.4374e-05 deg
M 171.9740610163852 1.2981e-05 deg
tp 2458456.923278954156
(2018-Dec-04.42327895)
5.2809e-05 TDB
period 1556.55811111537
4.26
1.4227e-05
3.895e-08
d
yr
n .2312795117825944 2.1138e-09 deg/d
Q 3.127144655428673 1.9054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      9957 days (27.26 yr)  
   first obs. used      1993-12-10  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50364  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:31:21  

Additional Information
 Earth MOID = 1.19511 au 
 Jupiter MOID = 2.38754 au 
 T_jup = 3.150 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457290.5 (2015-Sep-25.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883992257820208 6.2051e-08  
q 2.134824405618437 1.616e-07 au
tp 2456898.115157100422
(2014-Aug-28.61515710)
4.8713e-05 TDB
node 64.22819443088959 8.6667e-06 deg
peri 317.7815816563958 1.4459e-05 deg
i 32.9734993377331 5.7062e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      9957 days (27.26 yr)  
   first obs. used      1993-12-10  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50364  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:31:21  

Additional Information
 Jupiter MOID = 2.38754 au 
 T_jup = 3.150 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.850378603698767E-15 -9.99573600179411E-15 5.290245221942607E-13 -6.359341828886528E-15 -1.102991087963387E-14 7.955063338285632E-15
q -9.99573600179411E-15 2.611604957463013E-14 -1.264942630755046E-12 1.830364043941735E-14 5.959218656829675E-14 -2.221426385810524E-14
tp 5.290245221942607E-13 -1.264942630755046E-12 2.372957908994914E-9 2.348177934969177E-12 5.749173939295992E-10 -1.151894715434058E-11
node -6.359341828886528E-15 1.830364043941735E-14 2.348177934969177E-12 7.511158566340025E-11 -6.156119419437886E-11 -1.114235797393126E-11
peri -1.102991087963387E-14 5.959218656829675E-14 5.749173939295992E-10 -6.156119419437886E-11 2.090756100800529E-10 6.090671405872911E-12
i 7.955063338285632E-15 -2.221426385810524E-14 -1.151894715434058E-11 -1.114235797393126E-11 6.090671405872911E-12 3.256125782548617E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.46   n/a E2021B10  

58641 (1997 WX20)          Discovered 1997-Nov-29 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WX20 = 2000 KF5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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