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16594 Sorachi (1992 UL4)
Classification: Main-belt Asteroid          SPK-ID: 2016594
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03426344420219288 6.0349e-08  
a 2.606440791537544 2.3093e-08 au
q 2.517135152910378 1.5675e-07 au
i 10.67623069711981 6.46e-06 deg
node 87.01942300553407 3.6872e-05 deg
peri 201.1535574180862 0.00013942 deg
M 291.2464277571956 0.00014171 deg
tp 2457694.037093500814
(2016-Nov-01.53709350)
0.00060693 JED
period 1536.987100642654
4.21
2.0427e-05
5.593e-08
d
yr
n .2342244771276706 3.1129e-09 deg/d
Q 2.695746430164711 2.3885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      8263 days (22.62 yr)  
   first obs. used      1992-10-26  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49296  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:18:58  

Additional Information
 Earth MOID = 1.5014 au 
 Jupiter MOID = 2.37044 au 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO244333  
rotation period rot_per 4.5281 h n/a LCDB (Rev. 2015-December); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

16594 Sorachi           Discovered 1992 Oct. 26 by K. Endate and K. Watanabe at Kitami.
Sorachi, a central district of Hokkaido, had been developed by coal-mining and its related businesses and industries. But after the termination of coal-mining it is now in a great depression.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

Alternate Designations
 1992 UL4 = 1999 DA7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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