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3987 Wujek (1986 EL1)
Classification: Main-belt Asteroid          SPK-ID: 2003987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163119955243441 9.6981e-09  
a 2.73420090502165 9.1575e-09 au
q 2.416180541594114 2.6073e-08 au
i 4.824289403982482 2.453e-07 deg
node 48.49807896476764 9.7187e-06 deg
peri 308.0079009099986 1.5372e-05 deg
M 85.3297781479767 9.9054e-06 deg
tp 2458809.080753403258
(2019-Nov-21.58075340)
4.5342e-05 TDB
period 1651.368746447025
4.52
8.2962e-06
2.271e-08
d
yr
n .2180009769317434 1.0952e-09 deg/d
Q 3.052221268449185 1.0223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3195  
   data-arc span      18878 days (51.69 yr)  
   first obs. used      1969-07-17  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44701  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:20:47  

Additional Information
 Earth MOID = 1.41419 au 
 Jupiter MOID = 2.39143 au 
 T_jup = 3.338 
[ 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 12.24   n/a E2021B10  
diameter diameter 13.737 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.037 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Schmidt, R.E. (2016) Minor Planet Bull. 43, 129-131.]
geometric albedo albedo 0.148   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3987 Wujek (1986 EL1)          Discovered 1986-Mar-05 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1986 EL1 = 1969 OS = 1979 VX2 = 1979 YS1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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