+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1414833624971787 3.1788e-08   a 2.28673063091108 6.0034e-09 au q 1.963196292124485 7.3652e-08 au i 3.415363733669877 3.7137e-06 deg node 169.5712113125701 5.4849e-05 deg peri 120.763284126545 5.6347e-05 deg M 359.4036447864497 1.3936e-05 deg tp 2459398.592297616318 (2021-Jul-03.09229762) 4.8894e-05 TDB period 1263.051156022202 3.46 4.9739e-06 1.362e-08 d yr n .2850240849577052 1.1224e-09 deg/d Q 2.610264969697675 6.8528e-09 au   Orbit Determination Parameters    # obs. used (total)      1839      data-arc span      26153 days (71.60 yr)      first obs. used      1949-11-21      last obs. used      2021-06-29      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49057      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 03:41:20   Additional Information  Earth MOID = .949321 au   Jupiter MOID = 2.54661 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-Aug-05 13:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin