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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08207958097970143 3.8823e-08  
a 2.633776011868717 1.2124e-08 au
q 2.417596780420143 1.0214e-07 au
i 13.59609375872528 4.1273e-06 deg
node 234.1010458603667 1.502e-05 deg
peri 149.5129448097476 2.6131e-05 deg
M 214.6190620774649 2.2693e-05 deg
tp 2460026.980485960929
(2023-Mar-23.48048596)
0.00010029 TDB
period 1561.229265606162
4.27
1.078e-05
2.951e-08
d
yr
n .2305875299232407 1.5922e-09 deg/d
Q 2.84995524331729 1.3119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1226  
   data-arc span      8619 days (23.60 yr)  
   first obs. used      1997-11-29  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50363  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:09:59  

Additional Information
 Earth MOID = 1.43171 au 
 Jupiter MOID = 2.56384 au 
 T_jup = 3.354 
[ 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 14.73   n/a MPO637173  

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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