+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22394 Kondouakira (1994 TO) Classification: Main-belt Asteroid          SPK-ID: 2022394 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1911449665774358 2.7716e-08   a 2.678117745069791 1.0683e-08 au q 2.166209018197989 7.4375e-08 au i 11.11894326340026 4.2411e-06 deg node 6.072195316228827 1.4969e-05 deg peri 290.5210726665348 1.9074e-05 deg M 50.41085749398349 1.013e-05 deg tp 2458976.336699867883 (2020-May-06.83669987) 4.5295e-05 TDB period 1600.821570178477 4.38 9.5781e-06 2.622e-08 d yr n .2248845259874048 1.3455e-09 deg/d Q 3.190026471941595 1.2725e-08 au   Orbit Determination Parameters    # obs. used (total)      1985      data-arc span      17632 days (48.27 yr)      first obs. used      1972-10-05      last obs. used      2021-01-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46429      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:57:33   Additional Information  Earth MOID = 1.17895 au   Jupiter MOID = 2.16808 au   T_jup = 3.325  [ 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 13.81   n/a E2021B10   diameter diameter 9.362 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.116   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22394 Kondouakira           Discovered 1994 Oct. 2 by K. Endate and K. Watanabe at Kitami. Akira Kondou (b. 1943) has been director of the Saga City Hoshizora Astronomy Center since 2016. He is a widely respected astronomy scholar and a keen popularizer of astronomy. 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 2019-12-12 Last Updated: 2019-12-13 [ 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 1964-Mar-12 05:30 < 00:01 Thisb 0.0457265830463357 0.0457184083939222 0.0457347581873313 4.05475031672337 4.05475027994928 2438466.729041099 0.619436358297744 471.223558252257 40.131438750646 30.2796816766105 86807.1788289019 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 02:57:37 2021-Feb-24 02:57 Alternate Designations  1994 TO = 1972 TA3 = 1985 QE1 = 1985 RX1 = 1999 XO208  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 22:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin