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12214 Miroshnikov (1981 RF2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2012214
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580197025098368 4.1114e-08  
a 3.200431018472934 2.1337e-08 au
q 2.694699861030587 1.4105e-07 au
i 14.39207529454692 4.3127e-06 deg
node 254.5903093781977 1.922e-05 deg
peri 32.06955850333181 2.5933e-05 deg
M 304.8286677199484 1.9876e-05 deg
tp 2459320.995623880305
(2021-Apr-16.49562388)		 0.00011672 TDB
period 2091.274939877197
5.73		 2.0913e-05
5.726e-08		 d
yr
n .1721437928296218 1.7215e-09 deg/d
Q 3.706162175915281 2.4708e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1960  
   data-arc span      14229 days (38.96 yr)  
   first obs. used      1981-09-07  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:54:29  

Additional Information
 Earth MOID = 1.68998 au 
 Jupiter MOID = 1.46481 au 
 T_jup = 3.126 
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Orbital Elements at Epoch 2457147.5 (2015-May-05.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1565600760639925 4.1131e-08  
q 2.701386804275601 1.4109e-07 au
tp 2457227.397286157070
(2015-Jul-23.89728616)		 0.00011084 TDB
node 254.6103869140046 1.9219e-05 deg
peri 31.96509291458035 2.6034e-05 deg
i 14.3874951079556 4.3117e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1960  
   data-arc span      14229 days (38.96 yr)  
   first obs. used      1981-09-07  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:54:29  

Additional Information
 Jupiter MOID = 1.46481 au 
 T_jup = 3.126 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.691768853836181E-15 -5.766170319898266E-15 -5.095430089400352E-13 -7.704415276129834E-15 -5.083167092708903E-14 3.789330193106992E-16
q -5.766170319898266E-15 1.99058569244487E-14 2.107896442903337E-12 3.35249284611433E-14 2.242945866245914E-13 -2.381057691313162E-16
tp -5.095430089400352E-13 2.107896442903337E-12 1.228441625099292E-8 -2.096177767239229E-11 1.986627703263589E-9 -5.873817194339406E-13
node -7.704415276129834E-15 3.35249284611433E-14 -2.096177767239229E-11 3.693819968615275E-10 -3.605503012439975E-10 -8.460663350534539E-12
peri -5.083167092708903E-14 2.242945866245914E-13 1.986627703263589E-9 -3.605503012439975E-10 6.77746906977569E-10 8.15738144903879E-12
i 3.789330193106992E-16 -2.381057691313162E-16 -5.873817194339406E-13 -8.460663350534539E-12 8.15738144903879E-12 1.85904499322714E-11

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Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.91   n/a E2021B10  
diameter diameter 22.418 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.960 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.089   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

12214 Miroshnikov           Discovered 1981 Sept. 7 by L. G. Karachkina at the Crimean Astrophysical Observatory.
Mikhail Mikhailovich Miroshnikov (b. 1926) was director of the Vavilov State Optical Institute from 1966 to 1989. He developed airborne detection instruments and imaging systems for industrial applications and medical diagnostics in the infrared and far-infrared regions that were used for space investigations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

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