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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
58638 (1997 WA17)
Classification: Main-belt Asteroid          SPK-ID: 2058638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457185.5 (2015-Jun-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06523308263484041 4.7221e-08  
q 2.742837159489763 1.3723e-07 au
tp 2456536.840680775369
(2013-Sep-01.34068078)
0.00030768 TDB
node 236.2752840617566 2.4025e-05 deg
peri 214.1514745421274 6.5602e-05 deg
i 12.0710996369356 7.8829e-06 deg
  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
 Jupiter MOID = 2.16359 au 
 T_jup = 3.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.229820646594971E-15 -6.409648261225979E-15 -7.71850867942338E-12 1.391776365212945E-14 -1.567232182696528E-12 -4.10740206818904E-15
q -6.409648261225979E-15 1.883162349406114E-14 2.39902554399897E-11 -4.318715514042799E-14 4.886054476484825E-12 1.383786801895832E-14
tp -7.71850867942338E-12 2.39902554399897E-11 9.466686293130473E-8 -2.416498433434828E-11 1.880781747473519E-8 1.067064212792063E-12
node 1.391776365212945E-14 -4.318715514042799E-14 -2.416498433434828E-11 5.772112963811651E-10 -5.696953024180123E-10 -1.076490257136474E-10
peri -1.567232182696528E-12 4.886054476484825E-12 1.880781747473519E-8 -5.696953024180123E-10 4.30367956650305E-9 1.058761396203081E-10
i -4.10740206818904E-15 1.383786801895832E-14 1.067064212792063E-12 -1.076490257136474E-10 1.058761396203081E-10 6.213962168682861E-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 14.88   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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-23 21:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin