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12664 Sonisenia (1978 SS5)
Classification: Main-belt Asteroid          SPK-ID: 2012664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569784893733009 3.8156e-08  
a 2.582885711850051 1.0123e-08 au
q 2.177428214579947 1.0234e-07 au
i 2.762052774273783 3.6301e-06 deg
node 193.3456382111827 6.9288e-05 deg
peri 166.9398281808802 7.0069e-05 deg
M 27.50973533952794 1.1192e-05 deg
tp 2458884.638239543681
(2020-Feb-05.13823954)
4.6824e-05 TDB
period 1516.199020073551
4.15
8.9132e-06
2.44e-08
d
yr
n .2374358479551954 1.3958e-09 deg/d
Q 2.988343209120155 1.1712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1893  
   data-arc span      15385 days (42.12 yr)  
   first obs. used      1978-09-27  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49463  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:50:02  

Additional Information
 Earth MOID = 1.17432 au 
 Jupiter MOID = 2.46625 au 
 T_jup = 3.405 
[ 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 14.4   n/a MPO492893  
diameter diameter 7.346 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12664 Sonisenia           Discovered 1978 Sept. 27 by L. I. Chernykh at the Crimean Astrophysical Observatory.
Sonya (Sofiya) and Senya (Semen) are charming and talented children of Mark Ziselevich Orlovskij, Kiev journalist, executive in the publishing trade and friend of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1978 SS5 = 1982 UZ3 = 1985 HR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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