+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   117166 (2004 RU6) Classification: Main-belt Asteroid          SPK-ID: 2117166 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .189966490228513 4.1925e-08   a 3.10566255219483 2.9738e-08 au q 2.515690737320252 1.3754e-07 au i 19.1175216625894 6.3846e-06 deg node 139.6720682170206 1.3303e-05 deg peri 287.4177935820522 2.4104e-05 deg M 258.5537068402849 2.0991e-05 deg tp 2459563.830812878921 (2021-Dec-15.33081288) 0.00012084 TDB period 1999.078392318667 5.47 2.8713e-05 7.861e-08 d yr n .1800829829301729 2.5866e-09 deg/d Q 3.695634367069407 3.5388e-08 au   Orbit Determination Parameters    # obs. used (total)      533      data-arc span      7707 days (21.10 yr)      first obs. used      1999-09-14      last obs. used      2020-10-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5697      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 18:20:42   Additional Information  Earth MOID = 1.60558 au   Jupiter MOID = 1.80378 au   T_jup = 3.109  [ hide covariance matrix ] Orbital Elements at Epoch 2457814.5 (2017-Mar-02.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1918846312871441 4.1865e-08   q 2.506741652567162 1.3767e-07 au tp 2457556.588551648670 (2016-Jun-17.08855165) 0.00010358 TDB node 140.1728492904034 1.334e-05 deg peri 285.7063837476801 2.3656e-05 deg i 19.05404418143871 6.3874e-06 deg   Orbit Determination Parameters    # obs. used (total)      533      data-arc span      7707 days (21.10 yr)      first obs. used      1999-09-14      last obs. used      2020-10-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5697      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 18:20:42   Additional Information  Jupiter MOID = 1.80378 au   T_jup = 3.109  Orbit Covariance (6×6)   e q tp node peri i e 1.752707499630774E-15 -5.67935990015242E-15 -4.047478697937151E-13 9.29013541952695E-15 -2.567289232240859E-15 1.334679988058466E-15 q -5.67935990015242E-15 1.89521018354484E-14 2.368994992141727E-12 -3.75274944021081E-14 2.167168808070568E-13 -7.059058117047813E-16 tp -4.047478697937151E-13 2.368994992141727E-12 1.072789314029945E-8 -4.69034736878887E-11 2.033213279334878E-9 1.649519543525723E-11 node 9.29013541952695E-15 -3.75274944021081E-14 -4.69034736878887E-11 1.779454330624412E-10 -1.760773550708509E-10 1.129277178435172E-11 peri -2.567289232240859E-15 2.167168808070568E-13 2.033213279334878E-9 -1.760773550708509E-10 5.596166455236265E-10 -7.840431599904416E-12 i 1.334679988058466E-15 -7.059058117047813E-16 1.649519543525723E-11 1.129277178435172E-11 -7.840431599904416E-12 4.079840036285618E-11 [ 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 14.6   n/a MPO449685   diameter diameter 6.821 km 0.847 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.067   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   117166 (2004 RU6)          Discovered 2004-Sep-05 by NEAT at Palomar Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ 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 1949-Mar-24 03:55 00:03 Jupiter 1.86146537794995 1.86146447135929 1.86146628455087 4.51655792590585 4.41466143421814 2432999.662883230 2.70765609524109 352.76142134787 33.8782181774377 -84.4468533150682 1894753.26491681 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:43 2020-Nov-12 18:20 2009-Sep-02 12:30 < 00:01 Jupiter 1.91269692355886 1.91269612860288 1.91269771851549 5.57076496461247 5.49069561229374 2455077.020569526 0.377516823031291 85.198697396311 24.7575745310328 68.8627640900278 2676174.75526616 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:43 2020-Nov-12 18:20 2019-Oct-14 19:35 < 00:01 Jupiter 1.98097358837707 1.98097279698272 1.98097437977153 3.65424043531916 3.53529565257042 2458771.316177442 0.412100634196888 127.554037116979 33.7565440897085 -87.5781491297052 1827820.66144733 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:43 2020-Nov-12 18:20 2080-Apr-18 03:27 00:02 Jupiter 1.80875641815963 1.80875576987377 1.80875706644641 5.14427089850953 5.05241953002561 2480872.643445985 2.32810692074776 335.976962662921 30.2904672173868 89.2227013618148 2418196.34978752 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:43 2020-Nov-12 18:20 2150-Dec-02 18:35 00:05 Jupiter 1.81991600973162 1.81991430042488 1.81991771910706 4.65424880788889 4.55315220870018 2506667.274579687 5.15982478453697 628.649656960919 35.3182076641762 -82.1529378104832 2047110.68821486 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:43 2020-Nov-12 18:20 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 22:56 UT (server date/time)   Site Manager:   Ryan S. 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