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22250 Konstfrolov (1978 RD2)
Classification: Main-belt Asteroid          SPK-ID: 2022250
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2266025350016601 3.5742e-08  
a 2.587993454332958 8.1587e-09 au
q 2.001547577013407 9.0669e-08 au
i 4.746008578971939 4.0291e-06 deg
node 34.32871895540864 4.4474e-05 deg
peri 328.9250846809027 4.5279e-05 deg
M 51.89627045134028 1.0599e-05 deg
tp 2458981.281685311523
(2020-May-11.78168531)
4.4078e-05 TDB
period 1520.69874388851
4.16
7.1911e-06
1.969e-08
d
yr
n .2367332789921693 1.1195e-09 deg/d
Q 3.174439331652509 1.0007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1735  
   data-arc span      15526 days (42.51 yr)  
   first obs. used      1978-09-07  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49797  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:50  

Additional Information
 Earth MOID = .999719 au 
 Jupiter MOID = 2.28622 au 
 T_jup = 3.380 
[ 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 14.24   n/a E2021B10  
diameter diameter 3.636 km 0.334 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.255   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22250 Konstfrolov           Discovered 1978 Sept. 7 by T. M. Smirnova at the Crimean Astrophysical Observatory.
Konstantin Vasil'evich Frolov (b. 1932), director of the Mechanical Engineering Research Institute in Moscow, is a prominent expert in ergonomics and biomechanics. He is one of the founders of the new scientific direction "man-machine-environment" widely used in aviation, space, shipbuilding and nuclear engineering.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1978 RD2 = 1998 KF30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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