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 ]  
20099 (1994 WB3)
Classification: Main-belt Asteroid          SPK-ID: 2020099
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1789821353367413 3.7979e-08  
a 3.125087138887067 2.0229e-08 au
q 2.565752369655673 1.1781e-07 au
i 2.385989707101592 3.9509e-06 deg
node 110.4440927956636 0.00010313 deg
peri 304.6901794177462 0.00010373 deg
M 276.5110859338668 1.37e-05 deg
tp 2459668.469916946748
(2022-Mar-29.96991695)
7.9692e-05 TDB
period 2017.862754417689
5.52
1.9592e-05
5.364e-08
d
yr
n .1784065835061653 1.7322e-09 deg/d
Q 3.684421908118462 2.3849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1245  
   data-arc span      10687 days (29.26 yr)  
   first obs. used      1991-04-10  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50614  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:07  

Additional Information
 Earth MOID = 1.57762 au 
 Jupiter MOID = 1.67923 au 
 T_jup = 3.189 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.06   n/a E2021B10  
diameter diameter 15.03 km 1.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0236   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

20099 (1994 WB3)          Discovered 1994-Nov-28 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 WB3 = 1999 RO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 15:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin