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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 ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1896979047850066 6.2057e-08  
a 2.628519932423302 1.6005e-08 au
q 2.129895208556975 1.6193e-07 au
i 33.0076910125233 5.7068e-06 deg
node 64.13237272668586 8.6519e-06 deg
peri 317.9902200690041 1.4355e-05 deg
M 171.974061077624 1.2979e-05 deg
tp 2458456.923278659369
(2018-Dec-04.42327866)
5.2796e-05 TDB
period 1556.55811117818
4.26
1.4217e-05
3.892e-08
d
yr
n .2312795117732618 2.1124e-09 deg/d
Q 3.12714465628963 1.9042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1070  
   data-arc span      9965 days (27.28 yr)  
   first obs. used      1993-12-10  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:42:14  

Additional Information
 Earth MOID = 1.19511 au 
 Jupiter MOID = 2.38754 au 
 T_jup = 3.150 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457294.5 (2015-Sep-29.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883980204778818 6.1985e-08  
q 2.134841307467323 1.6145e-07 au
tp 2456898.120036511858
(2014-Aug-28.62003651)
4.8682e-05 TDB
node 64.22770536383742 8.6598e-06 deg
peri 317.783948142413 1.444e-05 deg
i 32.9734019902749 5.7043e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1070  
   data-arc span      9965 days (27.28 yr)  
   first obs. used      1993-12-10  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:42:14  

Additional Information
 Jupiter MOID = 2.38754 au 
 T_jup = 3.150 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.842084058903029E-15 -9.975392392235203E-15 5.338181160619215E-13 -6.209889655127101E-15 -9.233153534644475E-15 7.960693238765005E-15
q -9.975392392235203E-15 2.606618651752806E-14 -1.276734577112627E-12 1.792379802954864E-14 5.518235384144309E-14 -2.225561771520711E-14
tp 5.338181160619215E-13 -1.276734577112627E-12 2.369909323590063E-9 2.415934986581203E-12 5.736623708590544E-10 -1.146755796150682E-11
node -6.209889655127101E-15 1.792379802954864E-14 2.415934986581203E-12 7.499135462120612E-11 -6.144997208627706E-11 -1.119320133395609E-11
peri -9.233153534644475E-15 5.518235384144309E-14 5.736623708590544E-10 -6.144997208627706E-11 2.085010237530305E-10 6.14779596707164E-12
i 7.960693238765005E-15 -2.225561771520711E-14 -1.146755796150682E-11 -1.119320133395609E-11 6.14779596707164E-12 3.253922592042809E-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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