+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3899 Wichterle (1982 SN1) Classification: Main-belt Asteroid          SPK-ID: 2003899 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1761632633928802 3.916e-08   a 3.190078960640509 1.6159e-08 au q 2.628104240453109 1.2483e-07 au i 2.818079266471941 3.9448e-06 deg node 82.03297115596858 7.5933e-05 deg peri 325.7818215156979 7.6667e-05 deg M 234.9051332619408 1.3409e-05 deg tp 2459923.665275256062 (2022-Dec-10.16527526) 8.1286e-05 TDB period 2081.136547651607 5.70 1.5813e-05 4.329e-08 d yr n .17298240252723 1.3144e-09 deg/d Q 3.752053680827908 1.9006e-08 au   Orbit Determination Parameters    # obs. used (total)      2775      data-arc span      26269 days (71.92 yr)      first obs. used      1948-10-10      last obs. used      2020-09-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43921      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 15:42:02   Additional Information  Earth MOID = 1.63789 au   Jupiter MOID = 1.63887 au   T_jup = 3.171  [ hide covariance matrix ] Orbital Elements at Epoch 2457032.5 (2015-Jan-10.0) TDB Reference: JPL 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1782035921668862 3.9035e-08   q 2.61931804374702 1.2406e-07 au tp 2457847.291762852659 (2017-Apr-03.79176285) 7.0281e-05 TDB node 82.03818203411844 7.5912e-05 deg peri 326.308020127408 7.6628e-05 deg i 2.819496928843082 3.9478e-06 deg   Orbit Determination Parameters    # obs. used (total)      2775      data-arc span      26269 days (71.92 yr)      first obs. used      1948-10-10      last obs. used      2020-09-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43921      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 15:42:02   Additional Information  Jupiter MOID = 1.63887 au   T_jup = 3.171  Orbit Covariance (6×6)   e q tp node peri i e 1.523727449810244E-15 -4.814039385719906E-15 3.282749602813794E-13 4.157827591126999E-15 4.198823700093516E-15 7.237851328061286E-17 q -4.814039385719906E-15 1.539099177125177E-14 -5.239408977812739E-13 -1.151959600753153E-14 5.065845922062779E-14 -2.663240723637267E-16 tp 3.282749602813794E-13 -5.239408977812739E-13 4.939476316931727E-9 8.294646574724773E-12 7.483750781627027E-10 -3.844979534131473E-13 node 4.157827591126999E-15 -1.151959600753153E-14 8.294646574724773E-12 5.762602191087688E-9 -5.754233846293973E-9 -5.534236718016006E-11 peri 4.198823700093516E-15 5.065845922062779E-14 7.483750781627027E-10 -5.754233846293973E-9 5.871911672565099E-9 5.520540948972083E-11 i 7.237851328061286E-17 -2.663240723637267E-16 -3.844979534131473E-13 -5.534236718016006E-11 5.520540948972083E-11 1.558481676146474E-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 11.56   n/a E2021B10   diameter diameter 21.174 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 5.8572 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Owings, L.E. (2013) Minor Planet Bull. 40, 8-10.] [Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.] geometric albedo albedo 0.094   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   3899 Wichterle (1982 SN1)          Discovered 1982-Sep-17 by Mahrova, M. at Klet Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ 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-Jun-15 10:21 00:03 Jupiter 1.69916784177836 1.69916740257743 1.699168280979 1.86259047714327 1.57234162464735 2415185.931385340 2.85872554038034 61.6578673407037 33.1656593986705 -86.1191460917052 1978979.90574436 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 1911-Aug-10 05:40 00:02 Jupiter 1.71318284602628 1.71318242229774 1.71318326975511 1.80019337362245 1.50062223749366 2419258.736141677 2.32968849759811 94.6924263103824 25.8075000666099 86.9027977883676 2665343.68505276 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 1922-Oct-02 13:39 00:02 Jupiter 1.8004660536773 1.80046541188032 1.80046669547561 2.02210284917565 1.77426250139061 2423330.068680921 1.94848606413388 120.665293465591 9.370693062297 -89.8775460825459 2696688.56393367 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 1933-Nov-12 18:44 00:02 Jupiter 1.93827130979141 1.93827058261622 1.93827203696749 2.53002755284018 2.35096608540109 2427389.280440637 1.64867097571332 98.6490464242429 9.65314739183811 83.1094861911961 2986087.98708329 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2033-Feb-03 23:16 < 00:01 Jupiter 1.92324587559328 1.92324552522553 1.92324622596104 3.32441619888486 3.18918751989833 2463632.469736546 0.560337764137897 41.7225631533936 12.7243801993731 86.0826875289249 4215293.09622337 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2044-Feb-15 00:21 < 00:01 Jupiter 1.77776924195632 1.77776893482997 1.77776954908257 2.41784949380344 2.21203328962003 2467660.514392396 0.862628608442645 45.1790404581173 6.16363481046808 88.711054854964 3729527.79168972 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2055-Mar-20 02:15 00:01 Jupiter 1.69129468941768 1.69129437494436 1.6912950038909 1.91983081339864 1.63832969269987 2471711.593699605 1.21122309512534 52.6678703347233 17.2755198404381 87.3044542839353 3169412.94273431 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2066-May-09 22:38 00:02 Jupiter 1.68440638043514 1.6844059086868 1.68440685218329 1.77615008872751 1.46594231112204 2475780.442803256 1.62538080650335 69.4231337030949 28.2252476056697 85.1904780889792 2510806.83127776 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2077-Jul-04 09:19 00:02 Jupiter 1.75861574568885 1.75861498470837 1.75861650667003 1.92908415405576 1.66074756134743 2479853.888137715 2.11106673284601 106.569233431757 15.4639606270685 89.7125486998319 2357145.06246947 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2088-Aug-18 10:54 00:03 Jupiter 1.89328565105292 1.89328460712663 1.89328669498158 2.36217469122085 2.16451025606236 2483916.954200030 2.6206579203931 140.503955250264 7.7211272186764 82.625026623649 2801566.48820793 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2187-Nov-29 15:04 00:05 Jupiter 1.96160336575275 1.96160140859769 1.96160532291551 3.69250247098357 3.57364971391902 2520178.127547898 5.39589765467072 225.782040747929 16.5723844078344 71.5921693766384 2949848.12323134 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 2198-Dec-02 18:25 00:05 Jupiter 1.78997590131729 1.78997430285972 1.78997749977853 2.61930927209391 2.4319486948262 2524199.267561645 5.4834121127176 169.927479864518 7.81766443676632 83.0472483165877 2183171.02448955 T 40 CATAB v2.0f-lin.ifort 2021-Apr-12 15:42:40 2021-Apr-12 15:42 Alternate Designations  1982 SN1 = 1948 TF2 = 1949 YG = 1949 YW = 1951 GL1 = 1953 RX = 1954 YN = 1965 SQ = 1976 SZ = 1984 CB = 1985 FQ = 1987 OF1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-13 02:50 UT (server date/time)   Site Manager:   Ryan S. 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