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6388 (1989 WL1)
Classification: Main-belt Asteroid          SPK-ID: 2006388
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1466724920360619 4.3666e-08  
a 2.590832102914728 1.0332e-08 au
q 2.210828301933194 1.119e-07 au
i 12.56789505132084 4.4009e-06 deg
node 234.3389882647878 1.5242e-05 deg
peri 173.9598070471996 1.9663e-05 deg
M 125.7578373784492 1.0936e-05 deg
tp 2458468.404126335226
(2018-Dec-15.90412634)
4.6204e-05 TDB
period 1523.201404480774
4.17
9.1118e-06
2.495e-08
d
yr
n .2363443198916403 1.4138e-09 deg/d
Q 2.970835903896262 1.1848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2223  
   data-arc span      25433 days (69.63 yr)  
   first obs. used      1950-06-15  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:01:52  

Additional Information
 Earth MOID = 1.22165 au 
 Jupiter MOID = 2.40666 au 
 T_jup = 3.371 
[ 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 12.6   n/a MPO425869  
diameter diameter 7.582 km 1.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.870 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Klinglesmith, D.A. III; DeHart, A.; Hanowell, J.; Hendrickx, S. (2015) Minor Planet Bull. 42, 158-159.]
geometric albedo albedo 0.443   0.282 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

6388 (1989 WL1)          Discovered 1989-Nov-25 by Ueda, S., Kaneda, H. at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1989 WL1 = 1964 VW2 = 1972 TZ5 = 1993 UK3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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