+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   269390 Igortkachenko (2009 QA34) Classification: Main-belt Asteroid          SPK-ID: 2269390 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2664958896663398 6.0678e-08   a 2.657762402695364 1.9425e-08 au q 1.949479646667314 1.5789e-07 au i 5.60144170134187 6.2391e-06 deg node 333.4235924877673 8.4131e-05 deg peri 53.24684946192878 8.7176e-05 deg M 145.0940301633999 1.5915e-05 deg tp 2458362.648325052744 (2018-Sep-01.14832505) 7.1284e-05 TDB period 1582.605450564814 4.33 1.735e-05 4.75e-08 d yr n .2274729938984604 2.4938e-09 deg/d Q 3.366045158723414 2.4602e-08 au   Orbit Determination Parameters    # obs. used (total)      155      data-arc span      8132 days (22.26 yr)      first obs. used      1996-09-06      last obs. used      2018-12-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57538      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 12:25:07   Additional Information  Earth MOID = .95965 au   Jupiter MOID = 2.13197 au   T_jup = 3.329  [ 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 17.3   n/a MPO470857   269390 Igortkachenko           Discovered 2009 Aug. 27 by L. Elenin at Tzec Maun. Igor Valentinovich Tkachenko (1964-2009) was a Russian pilot and posthumous Hero of the Russian Federation. Perennial leader of the aerobatic team Russian Knights, which performed at hundreds of air shows around the world, Tkachenko died tragically at the International Aviation and Space Salon 2009. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2013-09-19 Last Updated: 2013-09-23 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2076-Jan-24 16:50 < 00:01 Europ 0.0496773930912062 0.0496749948705855 0.0496798017751425 5.72883089195896 5.72883085461272 2479327.201159607 0.782906742190105 1548.73867480094 81.1046036672405 -86.7326438032805 91450.5303121273 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:25:09 2019-Jul-14 12:25 2178-Jan-13 18:43 00:02 Eunom 0.0496285583956329 0.0495620288733142 0.0496950970221293 2.65883498518265 2.65883487879999 2516571.279902096 2.19879145841566 3473.32154577751 88.5021663465825 -17.6872052319066 25507.597537996 T 10 CATAB v2.0e-lin.ifort 2019-Jul-14 12:25:09 2019-Jul-14 12:25 Alternate Designations  2009 QA34 = 2002 AQ207 = 2005 XH83  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-24 18:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin