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4936 Butakov (1985 UY4)
Classification: Main-belt Asteroid          SPK-ID: 2004936
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262788589487329 2.8121e-08  
a 2.276209482951634 6.2175e-09 au
q 1.988772346716216 6.5573e-08 au
i 5.912164899191439 3.9778e-06 deg
node 155.6927829027841 3.118e-05 deg
peri 284.38329334688 3.5666e-05 deg
M 357.0516734569757 1.6668e-05 deg
tp 2459010.772824078243
(2020-Jun-10.27282408)
5.8085e-05 TDB
period 1254.344325230006
3.43
5.1394e-06
1.407e-08
d
yr
n .2870025341199576 1.1759e-09 deg/d
Q 2.563646619187052 7.0026e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2385  
   data-arc span      25692 days (70.34 yr)  
   first obs. used      1950-07-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:19:57  

Additional Information
 Earth MOID = 1.01421 au 
 Jupiter MOID = 2.64616 au 
 T_jup = 3.591 
[ 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 13.6   n/a MPO452235  
diameter diameter 4.465 km 0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.828 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:
[Pray, D.P.; Galad, A.; Husark, M.; Oey, J. (2008) Minor Planet Bull. 35, 34-37.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.428   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4936 Butakov (1985 UY4)          Discovered 1985-Oct-22 by Zhuravleva, L. V. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 UY4 = 1978 TK4 = 1978 VH12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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