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15220 Sumerkin (1981 SC7)
Classification: Main-belt Asteroid          SPK-ID: 2015220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2446659650691119 4.4147e-08  
a 2.529314754569568 9.3536e-09 au
q 1.910477519179261 1.1281e-07 au
i 8.656793208830056 4.4687e-06 deg
node 40.16780735847441 2.5015e-05 deg
peri 344.6537758829182 2.6232e-05 deg
M 211.5492944507889 1.0942e-05 deg
tp 2459606.374268395901
(2022-Jan-26.87426840)
4.6779e-05 TDB
period 1469.273829420905
4.02
8.1503e-06
2.231e-08
d
yr
n .2450189969979179 1.3592e-09 deg/d
Q 3.148151989959875 1.1642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1869  
   data-arc span      18507 days (50.67 yr)  
   first obs. used      1969-10-15  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:48:34  

Additional Information
 Earth MOID = .91642 au 
 Jupiter MOID = 2.30601 au 
 T_jup = 3.394 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO435842  

15220 Sumerkin           Discovered 1981 Sept. 28 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Yurij Vasil'evich Sumerkin (b. 1935) is a well-known Russian scientist in the field of ship mechanical engineering, ship building and ship repair. He is an author of more than 100 scientific and educational works, including eight textbooks on the technology of ship mechanical engineering.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

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Alternate Designations
 1981 SC7 = 1969 TL6 = 1969 UJ2 = 1977 SL3 = 1981 WG7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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