Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1895259364584906 6.5233e-08  
a 2.628954067009901 1.6395e-08 au
q 2.130699085553492 1.7115e-07 au
i 33.00608885244823 6.4022e-06 deg
node 64.13877391393103 8.793e-06 deg
peri 318.012026819556 1.4839e-05 deg
M 125.696032875745 1.2894e-05 deg
tp 2458456.884295680132
(2018-Dec-04.38429568)
5.359e-05 TDB
period 1556.943756121647
4.26
1.4565e-05
3.988e-08
d
yr
n .2312222253273692 2.163e-09 deg/d
Q 3.12720904846631 1.9503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      9553 days (26.15 yr)  
   first obs. used      1993-12-10  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52369  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:33:47  

Additional Information
 Earth MOID = 1.19664 au 
 Jupiter MOID = 2.3862 au 
 T_jup = 3.150 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457105.5 (2015-Mar-24.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884079924917968 6.5127e-08  
q 2.134413212897794 1.705e-07 au
tp 2456897.964892349592
(2014-Aug-28.46489235)
5.0168e-05 TDB
node 64.23895968064548 8.8034e-06 deg
peri 317.7154744445275 1.4931e-05 deg
i 32.97776961898791 6.3994e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      9553 days (26.15 yr)  
   first obs. used      1993-12-10  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52369  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:33:47  

Additional Information
 Jupiter MOID = 2.3862 au 
 T_jup = 3.150 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.241466811843556E-15 -1.107030217863074E-14 7.447541704153312E-13 -5.336652040721973E-15 4.663414601587319E-14 5.599017624243096E-15
q -1.107030217863074E-14 2.907000759142609E-14 -1.863949727747812E-12 1.502134278400087E-14 -1.006458906444698E-13 -1.514369159710392E-14
tp 7.447541704153312E-13 -1.863949727747812E-12 2.51681903467883E-9 1.192821143595811E-12 6.165867785875252E-10 -1.009681260192703E-11
node -5.336652040721973E-15 1.502134278400087E-14 1.192821143595811E-12 7.749988475450759E-11 -6.390283921151194E-11 -1.512860075583068E-11
peri 4.663414601587319E-14 -1.006458906444698E-13 6.165867785875252E-10 -6.390283921151194E-11 2.229286711671221E-10 9.909343761166872E-12
i 5.599017624243096E-15 -1.514369159710392E-14 -1.009681260192703E-11 -1.512860075583068E-11 9.909343761166872E-12 4.095261926023548E-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 14.4   n/a MPO319768  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-10 10:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin