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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .116188536572823 3.7853e-08  
a 2.733676043822532 1.021e-08 au
q 2.416054224826608 1.0473e-07 au
i 4.825032849050858 3.9106e-06 deg
node 48.50332693883394 4.3184e-05 deg
peri 307.7711874508128 4.5631e-05 deg
M 314.702357630664 1.4676e-05 deg
tp 2458808.226591551451
(2019-Nov-20.72659155)
6.7364e-05 TDB
period 1650.893270532444
4.52
9.2488e-06
2.532e-08
d
yr
n .2180637636761904 1.2217e-09 deg/d
Q 3.051297862818457 1.1396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2656  
   data-arc span      18369 days (50.29 yr)  
   first obs. used      1969-07-17  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46842  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:31:23  

Additional Information
 Earth MOID = 1.41481 au 
 Jupiter MOID = 2.38767 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 12.2   n/a MPO452220  
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. 2019-January); 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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