+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14969 Willacather (1997 QC1) Classification: Main-belt Asteroid          SPK-ID: 2014969 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1412843283211317 3.1946e-08   a 2.286258823869435 7.4854e-09 au q 1.963246281570782 7.3726e-08 au i 3.415291088180711 4.1672e-06 deg node 169.5754251761595 5.5307e-05 deg peri 120.768185409614 5.8636e-05 deg M 303.5120679821071 2.3459e-05 deg tp 2459398.625189026039 (2021-Jul-03.12518903) 8.2785e-05 TDB period 1262.660279841391 3.46 6.201e-06 1.698e-08 d yr n .2851123186081543 1.4002e-09 deg/d Q 2.609271366168089 8.5429e-09 au   Orbit Determination Parameters    # obs. used (total)      1730      data-arc span      25991 days (71.16 yr)      first obs. used      1949-11-21      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5005      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:11:04   Additional Information  Earth MOID = .947793 au   Jupiter MOID = 2.54864 au   T_jup = 3.586  [ 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 14.68   n/a E2021B10   diameter diameter 3.263 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.199   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14969 Willacather           Discovered 1997 Aug. 28 by R. Linderholm at Lime Creek. Born in Virginia, the novelist and Pulitzer Prize-winner Willa Cather (1873-1947) moved to Nebraska in 1883. Her early life on the prairie and sympathy for the immigrant pioneer influenced her mature years and shows in her best-known novels, My Antonia and Death Comes for the Archbishop. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20001013/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  1997 QC1 = 1986 HT  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-11 20:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin