+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   447242 (2005 UK204) Classification: Main-belt Asteroid          SPK-ID: 2447242 [ 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 .2088048830630614 6.9922e-08   a 2.979870905247496 3.2837e-08 au q 2.357659309334273 2.2446e-07 au i 11.20990928216171 9.7956e-06 deg node 223.2729566795223 4.6896e-05 deg peri 207.2757824446696 6.3965e-05 deg M 285.1760686480528 4.2416e-05 deg tp 2459391.010417417844 (2021-Jun-25.51041742) 0.00022506 TDB period 1878.86078331228 5.14 3.1057e-05 8.503e-08 d yr n .1916054681631861 3.1672e-09 deg/d Q 3.602082501160718 3.9694e-08 au   Orbit Determination Parameters    # obs. used (total)      167      data-arc span      5501 days (15.06 yr)      first obs. used      2005-10-25      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54766      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:29:11   Additional Information  Earth MOID = 1.37751 au   Jupiter MOID = 1.76475 au   T_jup = 3.198  [ 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 16.8   n/a MPO397617   447242 (2005 UK204)          Discovered 2005-Oct-25 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2015-10-28 [ 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 1900-Sep-08 06:51 00:06 Jupiter 1.75622853079486 1.75622766093788 1.75622940067629 2.853488788294 2.67914271220779 2415270.785614367 5.92188017451866 636.947409362942 32.8288780386765 -85.8641030298015 1203230.81311182 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 1937-Feb-02 04:00 00:05 Jupiter 1.87195390754434 1.87195122743263 1.87195658767393 2.335512911025 2.13299312945851 2428566.666480157 4.77767014080453 448.375508605175 111.687868344691 72.3638443703072 1589076.12784723 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 1982-May-01 18:39 00:02 Jupiter 1.99802223108985 1.99801970217499 1.99802476001097 3.37590517116517 3.24790313469704 2445091.277007284 2.19556397643339 246.522517380069 47.2215441292772 64.2603794922699 1004669.34659852 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 2018-Sep-12 01:39 < 00:01 Jupiter 1.80443669412339 1.80443563379608 1.80443775445244 3.1014804100774 2.94624483747326 2458373.569084089 0.768807544855628 240.69123346077 33.230682626603 82.9193863542004 1312345.77091807 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 2055-Jan-19 10:24 00:02 Jupiter 1.77188905512135 1.7718880724503 1.77189003779744 2.68572121601368 2.50140585203875 2471651.933163729 1.80821424446119 248.15244618523 41.5865236375903 -84.9457635474265 1906168.48697914 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 2091-Jun-26 07:39 00:04 Jupiter 1.88828310420248 1.88828106801815 1.88828514040956 2.05099273045216 1.81918555702975 2484958.818846966 4.09174621175304 519.530404185411 98.0267214415806 76.4105929678987 1239704.59439754 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 2136-Sep-09 21:32 00:06 Jupiter 1.97503092033441 1.9750278794028 1.97503396131743 3.38504298591607 3.25588469163335 2501470.397462035 5.73165207700039 578.165473293386 48.2365535591493 76.3900523253086 1199822.31081862 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 2173-Jan-22 01:58 00:07 Jupiter 1.79719836402598 1.79719678731058 1.79719994084251 3.00182848481214 2.840487809358 2514753.581778050 7.29813889465393 825.019071738978 29.1621594349427 86.7012426551343 1237621.77063419 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29 Alternate Designations  2005 UK204 = 2010 UR39  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 19:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin