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55477 Soroban (2001 UC1)
Classification: Main-belt Asteroid          SPK-ID: 2055477
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1972579294187274 6.1827e-08  
a 3.168737663747184 4.8392e-08 AU
q 2.543679033325279 2.0123e-07 AU
i 2.761367683073703 6.7207e-06 deg
node 116.0848206284955 0.00016226 deg
peri 202.8025923532467 0.00016313 deg
M 177.4876534134352 2.0384e-05 deg
tp 2455984.734396067790
(2012-Feb-27.23439607)
0.00011417 JED
period 2060.287633437804
5.64
4.7196e-05
1.292e-07
d
yr
n .1747328839708185 4.0027e-09 deg/d
Q 3.793796294169089 5.7938e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      5840 days (15.99 yr)  
   first obs. used      1998-01-29  
   last obs. used      2014-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59675  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 09:07:04  

Additional Information
 Earth MOID = 1.53168 AU 
 T_jup = 3.170 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO250714  

55477 Soroban           Discovered 2001 Oct. 18 by H. Maeno at Shishikui.
The soroban, or abacus, is an important tool of Japanese culture, used to calculate and record numbers. It has been used in Japan since 1624.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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