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8019 Karachkina (1990 TH12)
Classification: Main-belt Asteroid          SPK-ID: 2008019
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1476990382151422 5.446e-08  
a 2.369338983380386 1.3041e-08 AU
q 2.01938989432946 1.2833e-07 AU
i 4.158705958544465 7.1141e-06 deg
node 245.1308087328258 6.7711e-05 deg
peri 231.1962591714335 7.1446e-05 deg
M 169.7819083047925 2.2108e-05 deg
tp 2456372.256307787466
(2013-Mar-20.75630779)
8.0433e-05 JED
period 1332.107357342785
3.65
1.0998e-05
3.011e-08
d
yr
n .2702484886188965 2.2312e-09 deg/d
Q 2.719288072431311 1.4967e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1002  
   data-arc span      12107 days (33.15 yr)  
   first obs. used      1981-05-08  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55466  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:18:35  

Additional Information
 Earth MOID = 1.0388 AU 
 T_jup = 3.527 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO299020  

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

[ show close-approach data ]
Alternate Designations
 1990 TH12 = 1981 JZ4 = 1993 PD5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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