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JPL Small-Body Database Browser
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85537 (1997 WP31)
Classification: Main-belt Asteroid          SPK-ID: 2085537
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .08150405761656801 5.2336e-08  
a 2.634979182883021 1.4028e-08 au
q 2.420217687742866 1.3985e-07 au
i 13.59505085497508 5.527e-06 deg
node 234.1170533061908 1.8774e-05 deg
peri 149.6964746585789 3.1711e-05 deg
M 30.9711180197449 2.4869e-05 deg
tp 2458466.094019938477
(2018-Dec-13.59401994)
0.0001078 TDB
period 1562.299197313472
4.28
1.2476e-05
3.416e-08
d
yr
n .2304296133666685 1.8402e-09 deg/d
Q 2.849740678023176 1.5172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1997-11-29  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53208  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:49:50  

Additional Information
 Earth MOID = 1.43427 au 
 Jupiter MOID = 2.56414 au 
 T_jup = 3.353 
[ 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 14.7   n/a MPO459396  

85537 (1997 WP31)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 WP31 = 2001 UA23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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