Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1410717143546703 3.2441e-08  
a 2.28695944704723 7.86e-09 au
q 1.964334157192668 7.453e-08 au
i 3.414567614393447 4.8065e-06 deg
node 169.5855182555347 6.5924e-05 deg
peri 120.6118172409286 6.935e-05 deg
M 132.6554643072136 2.4245e-05 deg
tp 2458135.011704179910
(2018-Jan-16.51170418)
8.4235e-05 TDB
period 1263.240736975203
3.46
6.5124e-06
1.783e-08
d
yr
n .2849813099457278 1.4692e-09 deg/d
Q 2.609584736901791 8.9688e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1472  
   data-arc span      25261 days (69.16 yr)  
   first obs. used      1949-11-21  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51856  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:29:48  

Additional Information
 Earth MOID = .950154 au 
 Jupiter MOID = 2.54765 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 14.6   n/a MPO416869  
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.arcLast Updated: 2013-03-29

Alternate Designations
 1997 QC1 = 1986 HT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin