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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1263712009508519 2.3097e-08  
a 2.276368240087504 5.4969e-09 au
q 1.988700851781269 5.2924e-08 au
i 5.912431531426021 9.3868e-07 deg
node 155.6897524649821 1.0091e-05 deg
peri 284.3568412100721 1.4484e-05 deg
M 54.46777290686047 9.4332e-06 deg
tp 2459010.698639674825
(2020-Jun-10.19863967)
3.2643e-05 TDB
period 1254.475556287277
3.43
4.5439e-06
1.244e-08
d
yr
n .2869725107003674 1.0395e-09 deg/d
Q 2.564035628393739 6.1915e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2658  
   data-arc span      25820 days (70.69 yr)  
   first obs. used      1950-07-15  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:57:22  

Additional Information
 Earth MOID = 1.01376 au 
 Jupiter MOID = 2.64576 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 13.63   n/a MPCxxxxx  
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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