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5672 Libby (1986 EE2)
Classification: Main-belt Asteroid          SPK-ID: 2005672
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05128798312520845 3.3295e-08  
a 2.41044438940997 7.9343e-09 au
q 2.286817558241658 8.1696e-08 au
i 10.21781597289996 3.5586e-06 deg
node 171.7790353899113 1.6855e-05 deg
peri 354.0116833605076 3.4305e-05 deg
M 314.9276808087172 2.998e-05 deg
tp 2458771.639991476104
(2019-Oct-15.13999148)
0.00011397 TDB
period 1366.923158977653
3.74
6.7491e-06
1.848e-08
d
yr
n .2633652064752863 1.3004e-09 deg/d
Q 2.534071220578281 8.3412e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2325  
   data-arc span      23066 days (63.15 yr)  
   first obs. used      1956-03-09  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45363  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:09:58  

Additional Information
 Earth MOID = 1.29385 au 
 Jupiter MOID = 2.43169 au 
 T_jup = 3.497 
[ 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 13.1   n/a MPO319155  
diameter diameter 6.602 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 131.056 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.183   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5672 Libby (1986 EE2)          Discovered 1986-Mar-06 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 EE2 = 1956 EW = 1980 RP4 = 1984 UW4 = 1991 PM18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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