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4649 Sumoto (1936 YD)
Classification: Main-belt Asteroid          SPK-ID: 2004649
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219992987927018 3.9077e-08  
a 2.742825238523263 1.3798e-08 au
q 2.4082024827125 1.0889e-07 au
i 15.42273385467756 4.3984e-06 deg
node 80.82953471280884 1.6217e-05 deg
peri 313.6571728288316 2.4353e-05 deg
M 90.66485733723272 1.8335e-05 deg
tp 2458182.638735482959
(2018-Mar-05.13873548)
8.4327e-05 TDB
period 1659.188131368279
4.54
1.252e-05
3.428e-08
d
yr
n .2169735867765156 1.6372e-09 deg/d
Q 3.077447994334026 1.5481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2157  
   data-arc span      31966 days (87.52 yr)  
   first obs. used      1931-11-04  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:35:59  

Additional Information
 Earth MOID = 1.44221 au 
 Jupiter MOID = 2.33474 au 
 T_jup = 3.286 
[ 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 11.4   n/a MPO473830  
diameter diameter 15.168 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 26.31 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:
[Menke, J. (2005) Minor Planet Bull. 32, 85-88.]
geometric albedo albedo 0.207   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4649 Sumoto (1936 YD)          Discovered 1936-Dec-20 by Laugier, M. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1936 YD = 1931 VD1 = 1981 YA = 1983 CD3 = 1986 YW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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