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58638 (1997 WA17)
Classification: Main-belt Asteroid          SPK-ID: 2058638
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06335555131850906 4.7932e-08  
a 2.936367875760656 2.1567e-08 au
q 2.75033267011788 1.3991e-07 au
i 12.06440229057328 7.8802e-06 deg
node 236.2351911135311 2.4036e-05 deg
peri 213.3239885768991 6.7015e-05 deg
M 201.4575699957702 6.3544e-05 deg
tp 2460205.888692444638
(2023-Sep-18.38869244)
0.00032761 TDB
period 1837.867183392457
5.03
2.0248e-05
5.544e-08
d
yr
n .1958792252525496 2.1581e-09 deg/d
Q 3.122403081403431 2.2934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      8637 days (23.65 yr)  
   first obs. used      1997-11-19  
   last obs. used      2021-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62872  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:58:28  

Additional Information
 Earth MOID = 1.77362 au 
 Jupiter MOID = 2.16359 au 
 T_jup = 3.238 
[ 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 14.88   n/a E2021B10  
diameter diameter 6.224 km 0.285 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58638 (1997 WA17)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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