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4639 Minox (1989 EK2)
Classification: Main-belt Asteroid          SPK-ID: 2004639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .182618144580614 2.1399e-08  
a 2.556835238993117 1.0268e-08 au
q 2.089910731649864 5.6033e-08 au
i 7.917519498669026 7.7748e-07 deg
node 33.28738234772636 5.8461e-06 deg
peri 250.718069754353 8.0134e-06 deg
M 198.4808786862502 5.6334e-06 deg
tp 2459870.498737398994
(2022-Oct-17.99873740)
2.6705e-05 TDB
period 1493.318831242953
4.09
8.9957e-06
2.463e-08
d
yr
n .2410737696921404 1.4522e-09 deg/d
Q 3.023759746336371 1.2143e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2473  
   data-arc span      24187 days (66.22 yr)  
   first obs. used      1954-12-30  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:45:37  

Additional Information
 Earth MOID = 1.08805 au 
 Jupiter MOID = 2.16965 au 
 T_jup = 3.400 
[ 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 13.11   n/a E2021B10  
diameter diameter 6.915 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.993 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 0.198   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4639 Minox (1989 EK2)          Discovered 1989-Mar-05 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 EK2 = 1985 HR = 1986 SV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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