+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3842 Harlansmith (1985 FC1) Classification: Main-belt Asteroid          SPK-ID: 2003842 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 49 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1191104304187639 1.5668e-08   a 2.354073544060327 6.4709e-09 au q 2.073678830989877 3.7372e-08 au i 4.058772283814227 7.6349e-07 deg node 345.320181305762 8.1773e-06 deg peri 112.7675414563158 1.1547e-05 deg M 87.63119145728896 9.9935e-06 deg tp 2459075.367187779851 (2020-Aug-13.86718778) 3.6329e-05 TDB period 1319.254143150621 3.61 5.4396e-06 1.489e-08 d yr n .2728814625059687 1.1251e-09 deg/d Q 2.634468257130777 7.2417e-09 au   Orbit Determination Parameters    # obs. used (total)      2694      data-arc span      20335 days (55.67 yr)      first obs. used      1965-10-20      last obs. used      2021-06-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .41582      source      ORB      producer      Otto Matic      solution date      2021-Jul-07 22:45:02   Additional Information  Earth MOID = 1.09469 au   Jupiter MOID = 2.49646 au   T_jup = 3.543  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.03   n/a MPO614063   diameter diameter 7.040 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 2.79400 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Han, X.L.; Li, B.; Zhao, H.; Liu. W.; et al. (2013) Minor Planet Bull. 40, 99-100.] [Benishek, V. (2020) Minor Planet Bull. 47, 231-241.] [Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.] geometric albedo albedo 0.270   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   3842 Harlansmith (1985 FC1)          Discovered 1985-Mar-21 by Bowell, E. at Flagstaff (AM) Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory. Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1985 FC1 = 1952 BW = 1965 UG2 = 1974 EQ = 1976 UO3 = 1980 YE  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-23 03:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin