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JPL Small-Body Database Browser
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85531 (1997 WU17)
Classification: Main-belt Asteroid          SPK-ID: 2085531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128204949536755 4.3264e-08  
a 2.710337307587109 1.3983e-08 au
q 2.362858649840319 1.2114e-07 au
i 9.605725452163892 5.1331e-06 deg
node 25.09002291071946 2.6243e-05 deg
peri 17.44257115097455 3.3042e-05 deg
M 291.033214054816 1.8943e-05 deg
tp 2458912.727339126209
(2020-Mar-04.22733913)
8.6102e-05 TDB
period 1629.796728163816
4.46
1.2613e-05
3.453e-08
d
yr
n .2208864417132486 1.7094e-09 deg/d
Q 3.057815965333899 1.5776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      8089 days (22.15 yr)  
   first obs. used      1997-09-07  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59866  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:12:03  

Additional Information
 Earth MOID = 1.37206 au 
 Jupiter MOID = 2.37539 au 
 T_jup = 3.331 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO453286  

85531 (1997 WU17)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 WU17 = 2001 PB24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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