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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1840679612301621 4.0265e-08  
a 3.117212209662157 1.8686e-08 au
q 2.543433313507875 1.2507e-07 au
i 2.382646709843046 4.2308e-06 deg
node 110.4942158321598 0.00011172 deg
peri 304.5052514564345 0.00011234 deg
M 169.84121423792 1.3041e-05 deg
tp 2457652.106508045083
(2016-Sep-20.60650804)
6.8665e-05 TDB
period 2010.240321442201
5.50
1.8076e-05
4.949e-08
d
yr
n .1790830659200618 1.6103e-09 deg/d
Q 3.690991105816439 2.2126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1160  
   data-arc span      10258 days (28.08 yr)  
   first obs. used      1991-04-10  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50345  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:49:00  

Additional Information
 Earth MOID = 1.55563 au 
 Jupiter MOID = 1.67284 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 14.1   n/a MPO439233  
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 ]
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