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
JPL Small-Body Database Browser
Search: [ help ]  
14559 (1997 WP28)
Classification: Main-belt Asteroid          SPK-ID: 2014559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077945881623279 3.7324e-08  
a 2.975517522437334 1.8526e-08 au
q 2.654772836536411 1.1004e-07 au
i 8.859971775354087 4.3225e-06 deg
node 274.7385629241548 2.7724e-05 deg
peri 105.4240435777798 3.4873e-05 deg
M 138.7795648048596 2.1221e-05 deg
tp 2458277.788083742022
(2018-Jun-08.28808374)
0.00010926 TDB
period 1874.744961325613
5.13
1.7508e-05
4.793e-08
d
yr
n .1920261195130497 1.7933e-09 deg/d
Q 3.296262208338256 2.0523e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1345  
   data-arc span      11393 days (31.19 yr)  
   first obs. used      1989-03-02  
   last obs. used      2020-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:39:10  

Additional Information
 Earth MOID = 1.67526 au 
 Jupiter MOID = 2.19071 au 
 T_jup = 3.234 
[ 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 13.8   n/a MPO324443  
diameter diameter 7.274 km 0.544 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.121   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14559 (1997 WP28)          Discovered 1997-Nov-29 by Pravec, P. at Ondrejov
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WP28 = 1989 EF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 23:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin