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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05109111848472158 1.4697e-08  
a 2.41112406812692 6.1968e-09 au
q 2.287937042680884 3.4776e-08 au
i 10.21879596200462 4.7462e-07 deg
node 171.7568931816693 1.029e-06 deg
peri 354.6861344475025 1.5792e-05 deg
M 112.3170338826126 1.4426e-05 deg
tp 2458773.850845446099
(2019-Oct-17.35084545)
5.4719e-05 TDB
period 1367.501351575324
3.74
5.2719e-06
1.443e-08
d
yr
n .2632538531572857 1.0149e-09 deg/d
Q 2.534311093572957 6.5134e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2904  
   data-arc span      23565 days (64.52 yr)  
   first obs. used      1956-03-09  
   last obs. used      2020-09-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:49:14  

Additional Information
 Earth MOID = 1.29398 au 
 Jupiter MOID = 2.42861 au 
 T_jup = 3.496 
[ 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 13.13   n/a E2021B10  
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. 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:
[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

[ show close-approach data ]
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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