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12219 Grigor'ev (1982 SC8)
Classification: Main-belt Asteroid          SPK-ID: 2012219
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751430008571863 1.5457e-08  
a 2.232505742878864 6.418e-09 au
q 1.841497987640158 3.4976e-08 au
i 3.302036328039725 8.6637e-07 deg
node 343.3865601651072 1.7157e-05 deg
peri 323.9690718690533 1.8518e-05 deg
M 207.3772105548279 5.3809e-06 deg
tp 2459717.040275674296
(2022-May-17.54027567)
1.924e-05 TDB
period 1218.392744089823
3.34
5.254e-06
1.438e-08
d
yr
n .2954712277681292 1.2741e-09 deg/d
Q 2.62351349811757 7.5421e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2005  
   data-arc span      14066 days (38.51 yr)  
   first obs. used      1982-09-19  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49994  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:08:41  

Additional Information
 Earth MOID = .826034 au 
 Jupiter MOID = 2.62189 au 
 T_jup = 3.618 
[ 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 14.31   n/a MPCxxxxx  
diameter diameter 3.068 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.392   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12219 Grigor'ev           Discovered 1982 Sept. 19 by L. I. Chernykh at the Crimean Astrophysical Observatory.
From 1957 to 1962 Mikhail Grigor'evich Grigor'ev (1917-1981) was chief of the space-vehicle launch site now known as the Plesetsk cosmodrome. Under his leadership and thanks to his strong will this cosmodrome in the Archangel region of Russia became the most active in the world.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

Alternate Designations
 1982 SC8 = 1992 SH25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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