+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   266768 (2009 SK138) Classification: Main-belt Asteroid          SPK-ID: 2266768 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1391321469276378 4.3117e-08   a 3.125114139807668 2.7221e-08 au q 2.690310300142309 1.453e-07 au i 4.246042492532164 6.995e-06 deg node 23.24307972873713 6.4005e-05 deg peri 53.03866104149637 6.9621e-05 deg M 329.0503101176425 2.5709e-05 deg tp 2459373.980655172273 (2021-Jun-08.48065517) 0.00014427 TDB period 2017.888906137919 5.52 2.6365e-05 7.218e-08 d yr n .1784042713674519 2.3309e-09 deg/d Q 3.559917979473027 3.1008e-08 au   Orbit Determination Parameters    # obs. used (total)      292      data-arc span      9421 days (25.79 yr)      first obs. used      1995-03-27      last obs. used      2021-01-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60075      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 14:15:01   Additional Information  Earth MOID = 1.70771 au   Jupiter MOID = 1.72024 au   T_jup = 3.196  [ 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 15.8   n/a MPO440311   diameter diameter 2.969 km 0.317 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.105   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   266768 (2009 SK138)          Discovered 2009-Sep-18 by Spacewatch at Kitt Peak Reference: 20110218/Numbers.arc Last Updated: 2011-02-22 [ 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 1914-Dec-07 10:11 00:04 Jupiter 1.89599366769971 1.89599217429668 1.89599516110436 3.27005584835006 3.13045980660634 2420473.924369317 4.13924716079506 139.215570651072 28.9847394423136 74.2800869405424 1434495.48113599 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 1925-Feb-16 07:27 00:04 Jupiter 1.75412575316177 1.75412524388234 1.7541262624411 1.95249139342024 1.68714958815325 2424197.810099921 3.79380291419709 105.420920049063 32.5957550970114 -86.8311769123828 2225880.77755669 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 1935-May-06 23:13 00:03 Jupiter 1.90915428290135 1.9091530609284 1.90915550487485 2.42639992115507 2.23608790337219 2427929.467388857 3.18386384607861 103.344202009766 9.1243662603076 78.6414325308298 1658881.58865703 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 1997-Aug-03 16:32 < 00:01 Jupiter 1.82478610062567 1.82478536136438 1.82478683988676 2.76897283943374 2.59593103238122 2450664.188904407 0.898288125108631 61.2509331683019 18.6135300144869 86.7541763344798 1635551.97608458 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 2007-Oct-12 07:50 < 00:01 Jupiter 1.75957730227807 1.75957683453567 1.75957777002058 1.89557641638257 1.62186717696129 2454385.826275435 0.525620018895157 81.9863923409123 18.7865368681952 79.5946328855926 2508573.41460151 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 2018-Jan-04 14:48 < 00:01 Jupiter 1.99165580463582 1.99165512300545 1.99165648626618 2.75824373915404 2.59948790009052 2458123.116385275 0.390318324294296 62.2423753226891 15.6138679287461 77.2887185103074 2171217.63632846 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 2080-Mar-28 10:01 00:03 Jupiter 1.7613110948611 1.76131033898404 1.76131185073775 2.33645031884776 2.12065815175782 2480851.917316870 2.59144297402904 74.8269904828642 19.6941746423401 -86.5559947936261 1198988.18755179 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 2090-Jun-06 13:08 00:03 Jupiter 1.79579366840894 1.79579289687489 1.79579443994257 1.98440662924628 1.7304707727273 2484574.047006798 3.03845290831248 77.4147541304949 13.7106180434953 81.6341830489744 1819679.47495655 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 2152-Sep-06 04:13 00:05 Jupiter 1.92374279957176 1.92374085917578 1.92374473997309 3.59618273316098 3.47158922485989 2507310.675750786 5.30617288329895 207.582839041036 32.2447135073012 72.0268219566864 1643574.52840239 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 2162-Nov-21 12:53 00:06 Jupiter 1.73317749716439 1.73317686501699 1.73317812931158 2.05323601872779 1.79954344236483 2511039.036837313 6.01113714033176 117.06472907725 55.2666535884798 -58.8379998779506 1068281.64665313 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 2173-Feb-01 01:29 00:06 Jupiter 1.86187277512005 1.86187081404799 1.86187473619021 2.20778073290297 1.99108889200954 2514763.562013603 6.33291271723372 90.6093672628306 8.9394815664982 76.9284650608088 909273.637488711 T 16 CATAB v2.0f-lin.ifort 2021-Feb-24 14:15:02 2021-Feb-24 14:15 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-02 18:42 UT (server date/time)   Site Manager:   Ryan S. 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