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8019 Karachkina (1990 TH12)
Classification: Main-belt Asteroid          SPK-ID: 2008019
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486174624320026 2.8732e-08  
a 2.368842078676916 7.1829e-09 au
q 2.016790780041803 6.8789e-08 au
i 4.162017843208289 3.7552e-06 deg
node 245.0811143681289 4.7316e-05 deg
peri 231.1267035562831 4.9178e-05 deg
M 44.51099039772011 1.3739e-05 deg
tp 2459035.847872261519
(2020-Jul-05.34787226)
5.0577e-05 TDB
period 1331.688319136777
3.65
6.057e-06
1.658e-08
d
yr
n .2703335268671262 1.2296e-09 deg/d
Q 2.72089337731203 8.2504e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2162  
   data-arc span      14563 days (39.87 yr)  
   first obs. used      1981-05-08  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:43:28  

Additional Information
 Earth MOID = 1.0361 au 
 Jupiter MOID = 2.38342 au 
 T_jup = 3.528 
[ 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 14.12   n/a E2021B10  
diameter diameter 2.963 km 0.530 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.554   0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8019 Karachkina           Discovered 1990 Oct. 14 by L. D. Schmadel and F. Börngen at Tautenburg.
Named in honor of Lyudmila Georgievna Karachkina (b. 1948), staff astronomer at the Institute of Theoretical Astronomy in St. Petersburg since 1978 and now at the Crimean Astrophysical Observatory. Her main fields of work are in astrometry and photometry of minor planets. Between 1978 and 1990 she discovered 99 minor planets. Since 1990 she has concentrated on photometry and colorimetry of solar system bodies. Name proposed by the first discoverer in gratitude for her kind support and cooperation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1990 TH12 = 1981 JZ4 = 1993 PD5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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