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15203 Grishanin (1978 SS6)
Classification: Main-belt Asteroid          SPK-ID: 2015203
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1905126276774823 3.5233e-08  
a 2.434410690654659 7.3996e-09 au
q 1.970624713131885 8.4547e-08 au
i 2.672798803597291 3.1004e-06 deg
node 331.2427998140538 8.5076e-05 deg
peri 38.0320037652658 8.5553e-05 deg
M 41.74399131751841 8.5821e-06 deg
tp 2459039.627923602507
(2020-Jul-09.12792360)
3.299e-05 TDB
period 1387.360088846919
3.80
6.3255e-06
1.732e-08
d
yr
n .259485625176956 1.1831e-09 deg/d
Q 2.898196668177432 8.8093e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2111  
   data-arc span      15506 days (42.45 yr)  
   first obs. used      1978-09-26  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48468  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:51:51  

Additional Information
 Earth MOID = .969167 au 
 Jupiter MOID = 2.5723 au 
 T_jup = 3.479 
[ 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 14.13   n/a E2021B10  
diameter diameter 9.558 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.6388 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15203 Grishanin           Discovered 1978 Sept. 26 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Kirill Vladimirovich Grishanin (1909-2002), an eminent specialist in the field of hydrometeorology, delivered lectures at the St. Petersburg State University for Water Communications for nearly 50 years. He is author of numerous scientific works and some textbooks, one of which was reprinted three times.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

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Alternate Designations
 1978 SS6 = 1938 DP2 = 1997 TJ17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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