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6925 Susumu (1993 UW2)
Classification: Main-belt Asteroid          SPK-ID: 2006925
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012135448427517 3.1341e-08  
a 2.833907032309471 1.4309e-08 au
q 2.547077255814627 9.0606e-08 au
i 14.20712570444459 4.2073e-06 deg
node 207.496764953573 1.4587e-05 deg
peri 85.52721301452438 2.5844e-05 deg
M 312.9934734183124 2.2642e-05 deg
tp 2459228.026761760467
(2021-Jan-13.52676176)
0.0001101 TDB
period 1742.516203392013
4.77
1.3197e-05
3.613e-08
d
yr
n .2065977919167796 1.5647e-09 deg/d
Q 3.120736808804315 1.5757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2178  
   data-arc span      20205 days (55.32 yr)  
   first obs. used      1964-10-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4359  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:15:43  

Additional Information
 Earth MOID = 1.58107 au 
 Jupiter MOID = 2.07977 au 
 T_jup = 3.260 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.2   n/a MPO435765  
diameter diameter 22.860 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.046   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

6925 Susumu           Discovered 1993 Oct. 24 by T. Seki at Geisei.
Named in honor of Augustin Susumu Yamamoto (b. 1915), agronomist and director of the Yamamoto Observatory and, from 1988 to 1994, chairman of the board of directors of the Oriental Astronomical Association, which maintains its headquarters there. He published a Catalogue of Cometary Orbits in 1936. His father was the astronomer Issei Yamamoto. Name proposed by the discoverer following a suggestion by I. Hasegawa and T. Sato.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981005/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1993 UW2 = 1964 TF2 = 1972 HP1 = 1976 DL = 1987 MV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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