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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335733105802274 5.0049e-08  
a 2.625946621518532 1.1175e-08 au
q 2.275190237875338 1.3272e-07 au
i 5.615593229528206 3.6949e-06 deg
node 99.23498901811539 4.9679e-05 deg
peri 308.2926659361448 5.2465e-05 deg
M 22.35274260076999 1.4887e-05 deg
tp 2458503.993718093541
(2019-Jan-20.49371809)
6.4268e-05 TDB
period 1554.272874109344
4.26
9.9215e-06
2.716e-08
d
yr
n .2316195605011078 1.4785e-09 deg/d
Q 2.976703005161725 1.2668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1495  
   data-arc span      10430 days (28.56 yr)  
   first obs. used      1991-05-18  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50506  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:39:23  

Additional Information
 Earth MOID = 1.29001 au 
 Jupiter MOID = 2.38597 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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