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 ]  
26402 (1999 WB5)
Classification: Main-belt Asteroid          SPK-ID: 2026402
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1289716032658202 3.3446e-08  
a 2.412520012757018 9.1512e-09 au
q 2.101373438800869 8.129e-08 au
i 3.014655270965776 3.8323e-06 deg
node 156.8303079454611 7.1969e-05 deg
peri 342.2845025988137 7.3486e-05 deg
M 15.11596680638777 1.518e-05 deg
tp 2458543.030390961915
(2019-Feb-28.53039096)
5.7624e-05 TDB
period 1368.689116528607
3.75
7.7876e-06
2.132e-08
d
yr
n .2630253982826025 1.4966e-09 deg/d
Q 2.723666586713168 1.0331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1137  
   data-arc span      11081 days (30.34 yr)  
   first obs. used      1989-01-04  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5118  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:24:39  

Additional Information
 Earth MOID = 1.11525 au 
 Jupiter MOID = 2.2952 au 
 T_jup = 3.505 
[ 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 15.2   n/a MPO319411  

26402 (1999 WB5)          Discovered 1999-Nov-28 by Kobayashi, T. at Oizumi
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 WB5 = 1989 AB4 
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