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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1220931926945879 1.0993e-08  
a 2.742291530955404 1.2452e-08 au
q 2.40747640264173 3.5039e-08 au
i 15.42234277840261 3.5037e-07 deg
node 80.82829946635596 1.3283e-06 deg
peri 313.4364543829644 9.9414e-06 deg
M 221.1406765207801 1.28e-05 deg
tp 2459840.295829469016
(2022-Sep-17.79582947)
6.0645e-05 TDB
period 1658.703879853727
4.54
1.1297e-05
3.093e-08
d
yr
n .2170369312886316 1.4782e-09 deg/d
Q 3.077106659269079 1.3972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2679  
   data-arc span      32606 days (89.27 yr)  
   first obs. used      1931-11-04  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36237  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:35:54  

Additional Information
 Earth MOID = 1.44127 au 
 Jupiter MOID = 2.33752 au 
 T_jup = 3.287 
[ 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 11.53   n/a E2021B10  
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. 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:
[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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