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27660 Waterwayuni (1978 TR7)
Classification: Main-belt Asteroid          SPK-ID: 2027660
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090209564648346 7.7102e-08  
a 2.795276392345067 2.9726e-08 AU
q 2.211005047233529 2.0485e-07 AU
i 9.320062444317555 6.8485e-06 deg
node 88.28172481774067 4.0914e-05 deg
peri 338.7444944689789 4.4737e-05 deg
M 242.8098626903551 1.5367e-05 deg
tp 2457556.179178890102
(2016-Jun-16.67917889)
7.5671e-05 JED
period 1707.008021262664
4.67
2.7229e-05
7.455e-08
d
yr
n .2108953183088794 3.3641e-09 deg/d
Q 3.379547737456605 3.5939e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      12663 days (34.67 yr)  
   first obs. used      1978-10-02  
   last obs. used      2013-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52256  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 01:50:35  

Additional Information
 Earth MOID = 1.22769 AU 
 T_jup = 3.276 
[ 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 13.3 mag n/a MPO263583  

27660 Waterwayuni           Discovered 1978 Oct. 2 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Founded in 1809, St. Petersburg University of Waterway Communications is the oldest transport educational institute in Russia. The University offers training in 26 specialities of higher vocational education in the social sciences, natural sciences and technical engineering.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

[ show close-approach data ]
Alternate Designations
 1978 TR7 = 1983 XQ1 = 1999 GW19 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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