+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3779 Kieffer (1985 JV1) Classification: Main-belt Asteroid          SPK-ID: 2003779 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1103899295461537 3.3134e-08   a 2.638647247026597 1.1664e-08 au q 2.347367163330179 8.8219e-08 au i 13.88601951330367 4.691e-06 deg node 59.22493521764508 1.5147e-05 deg peri 72.18680345073801 2.6986e-05 deg M 151.4915810830326 2.3199e-05 deg tp 2458341.695698424422 (2018-Aug-11.19569842) 9.933e-05 TDB period 1565.56256705259 4.29 1.0381e-05 2.842e-08 d yr n .2299492895245667 1.5247e-09 deg/d Q 2.929927330723015 1.2952e-08 au   Orbit Determination Parameters    # obs. used (total)      2305      data-arc span      29207 days (79.96 yr)      first obs. used      1940-11-29      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39388      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:14:02   Additional Information  Earth MOID = 1.40486 au   Jupiter MOID = 2.25392 au   T_jup = 3.346  [ 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 11.6   n/a MPO473818   diameter diameter 14.660 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 2.848 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Ditteon, R.; Tollefson, E.R.; Gross, J. (2002) Minor Planet Bull. 29, 72.] [Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.252   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   3779 Kieffer (1985 JV1)          Discovered 1985-May-13 by Shoemaker, C. and Shoemaker, E. at Palomar 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 2000-Aug-21 20:01 < 00:01 Psych 0.0211742435425155 0.021173290990369 0.0211751961085189 5.85570530260186 5.85570520502068 2451778.333790162 0.442060112258554 85.7760821899564 43.9583449906971 -75.8972800537902 70432.4357389038 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:14:06 2020-Dec-18 02:14 Alternate Designations  1985 JV1 = 1940 WD = 1959 GK = 1978 TH = 1987 WW5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 04:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin