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 ]  
129729 (1998 WB19)
Classification: Main-belt Asteroid          SPK-ID: 2129729
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2832232009319255 3.9198e-08  
a 2.617560869571055 7.1407e-09 au
q 1.876206901456987 1.022e-07 au
i 6.909361613969703 4.1893e-06 deg
node 77.36745450638016 3.3164e-05 deg
peri 285.6421356547814 3.4049e-05 deg
M 61.70120884529978 5.8004e-06 deg
tp 2458735.384705188206
(2019-Sep-08.88470519)
2.4969e-05 TDB
period 1546.833650723786
4.23
6.3296e-06
1.733e-08
d
yr
n .2327334938902775 9.5234e-10 deg/d
Q 3.358914837685124 9.1631e-09 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      8267 days (22.63 yr)  
   first obs. used      1997-06-08  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:05:38  

Additional Information
 Earth MOID = .888482 au 
 Jupiter MOID = 2.13765 au 
 T_jup = 3.338 
[ 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 15.7   n/a MPO502832  
diameter diameter 5.006 km 1.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.037   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

129729 (1998 WB19)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 04:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin