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JPL Small-Body Database Browser
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55887 (1997 WE37)
Classification: Main-belt Asteroid          SPK-ID: 2055887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336728055187494 4.7544e-08  
a 2.625312873909354 1.0472e-08 au
q 2.2743799366894 1.25e-07 au
i 5.615687821118059 3.4914e-06 deg
node 99.23502667458547 4.588e-05 deg
peri 308.1654079815273 4.8843e-05 deg
M 115.1270013919673 1.487e-05 deg
tp 2458503.627773736812
(2019-Jan-20.12777374)
6.4027e-05 TDB
period 1553.710244269666
4.25
9.2962e-06
2.545e-08
d
yr
n .2317034346189955 1.3863e-09 deg/d
Q 2.976245811129309 1.1872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1570  
   data-arc span      10490 days (28.72 yr)  
   first obs. used      1991-05-18  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:37:47  

Additional Information
 Earth MOID = 1.28967 au 
 Jupiter MOID = 2.38727 au 
 T_jup = 3.383 
[ 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 14.5   n/a MPO459234  

55887 (1997 WE37)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WE37 = 2001 PE63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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