+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1678 Hveen (1940 YH) Classification: Main-belt Asteroid          SPK-ID: 2001678 [ 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 .1100144792346527 3.3915e-08   a 3.157437937157642 1.3383e-08 au q 2.810074046785508 1.0676e-07 au i 10.19675140780308 4.577e-06 deg node 351.5737739760103 1.9093e-05 deg peri 121.1670874015518 2.919e-05 deg M 72.63369045294564 2.0224e-05 deg tp 2458787.037362097112 (2019-Oct-30.53736210) 0.00011515 TDB period 2049.27697762331 5.61 1.3029e-05 3.567e-08 d yr n .1756717144295044 1.1169e-09 deg/d Q 3.504801827529775 1.4855e-08 au   Orbit Determination Parameters    # obs. used (total)      2738      data-arc span      37188 days (101.82 yr)      first obs. used      1919-04-02      last obs. used      2021-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41377      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:57:20   Additional Information  Earth MOID = 1.8427 au   Jupiter MOID = 1.60771 au   T_jup = 3.172  [ hide covariance matrix ] Orbital Elements at Epoch 2456874.5 (2014-Aug-05.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1117125562167794 3.4091e-08   q 2.806622184055906 1.08e-07 au tp 2456742.398502931281 (2014-Mar-25.89850293) 0.00011362 TDB node 351.6007668177967 1.9102e-05 deg peri 122.0716418991861 2.8835e-05 deg i 10.19408045852136 4.5754e-06 deg   Orbit Determination Parameters    # obs. used (total)      2738      data-arc span      37188 days (101.82 yr)      first obs. used      1919-04-02      last obs. used      2021-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41377      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:57:20   Additional Information  Jupiter MOID = 1.60771 au   T_jup = 3.172  Orbit Covariance (6×6)   e q tp node peri i e 1.162212386175831E-15 -3.659750873915237E-15 1.235783296174626E-12 -4.95347943025089E-15 2.507910319640381E-13 -1.651985606246886E-15 q -3.659750873915237E-15 1.166455566495852E-14 -4.118996065599793E-12 1.502092788087082E-14 -8.323583977013479E-13 4.820157294141482E-15 tp 1.235783296174626E-12 -4.118996065599793E-12 1.291030585378264E-8 -2.564848262550201E-11 2.465964955389955E-9 2.305528755859321E-12 node -4.95347943025089E-15 1.502092788087082E-14 -2.564848262550201E-11 3.648850018021348E-10 -3.635006741546477E-10 -2.146733101373667E-12 peri 2.507910319640381E-13 -8.323583977013479E-13 2.465964955389955E-9 -3.635006741546477E-10 8.314836881570977E-10 2.509358165442982E-12 i -1.651985606246886E-15 4.820157294141482E-15 2.305528755859321E-12 -2.146733101373667E-12 2.509358165442982E-12 2.093454000156674E-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 11.02   n/a E2021B10   diameter diameter 42.665 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 5.987 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Carbognani, A. (2014). Minor Planet Bull. 41, 265-270.] geometric albedo albedo 0.035   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1678 Hveen (1940 YH)          Discovered 1940-Dec-28 by Vaisala, Y. at Turku 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 1928-May-01 23:55 00:02 Jupiter 1.88768551816254 1.88768445877189 1.88768657755308 3.95675104831761 3.84167408328232 2425368.496397031 1.91110610735009 59.0754953798791 48.8564047980139 -67.788855973974 2642209.72056921 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 1939-Jan-12 13:48 00:02 Jupiter 1.65642872661831 1.65642823217452 1.65642922106275 3.54105467857743 3.39357613085698 2429276.074824437 1.57206503403631 157.215020704714 19.5811125131996 86.9220810964381 2634185.79233332 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 1949-Sep-28 00:22 00:01 Jupiter 1.74354050890783 1.74353989840518 1.74354111941097 2.90871400592794 2.73660466305623 2433187.515404618 1.39214627965453 83.586940027578 20.2122223852773 70.1591460643365 2819956.25163698 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 2046-Mar-19 07:02 < 00:01 Jupiter 1.69597825030755 1.69597775729236 1.69597874332264 3.63413390900103 3.4940047442268 2468423.792977367 0.662546345776478 119.45432650344 22.0413993774464 89.299241780547 2939588.82978822 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 2056-Dec-07 02:59 < 00:01 Jupiter 1.67266878252813 1.67266827379056 1.67266929126607 3.2063728347203 3.04434673271898 2472339.624035492 0.919201828315449 102.738644012516 18.9624049314012 81.1731338858733 2965199.94226126 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 2067-Aug-01 03:42 00:01 Jupiter 1.93275748440213 1.93275665459386 1.9327583142105 2.66992093846243 2.50039728111637 2476228.654145644 1.29119091804908 53.5950977733085 26.8630477172999 50.9525858471553 3408713.08388357 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 2153-May-24 13:08 00:03 Jupiter 1.76959206723643 1.76959059057439 1.76959354390048 3.62272457740552 3.48809763968279 2507571.047033424 2.96801994465245 144.778751227682 45.793406988941 66.697864671517 2510682.35245874 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 2164-Feb-07 14:04 00:03 Jupiter 1.6291429941036 1.62914249411557 1.62914349409199 3.3877279240727 3.23061330723609 2511482.086087204 3.04827383997403 159.382362879423 23.743562125903 86.4577366228794 2804487.13585279 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 2174-Oct-18 01:52 00:04 Jupiter 1.829888811462 1.82988695284787 1.82989067007935 2.90782833036925 2.74403018989877 2515387.577507046 3.57571863153359 161.025386243505 24.1781429077618 51.8625381875094 3177439.03172904 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:57:26 2021-Feb-24 00:57 Alternate Designations  1940 YH = 1951 YD1 = A919 GA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-04 03:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin