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 ]  
85806 (1998 WG8)
Classification: Main-belt Asteroid          SPK-ID: 2085806
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170082668601629 3.75e-08  
a 2.227590316090907 7.4335e-09 au
q 1.966943833930628 8.2041e-08 au
i 6.750964215672505 4.8941e-06 deg
node 290.6191754442467 3.3293e-05 deg
peri 160.7826015481031 3.9526e-05 deg
M 166.0574606698192 2.0479e-05 deg
tp 2458440.346182067454
(2018-Nov-17.84618207)
6.8527e-05 TDB
period 1214.371059525465
3.32
6.0785e-06
1.664e-08
d
yr
n .2964497524674836 1.4839e-09 deg/d
Q 2.488236798251187 8.3032e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1293  
   data-arc span      7929 days (21.71 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51128  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:45  

Additional Information
 Earth MOID = .984987 au 
 Jupiter MOID = 2.66614 au 
 T_jup = 3.626 
[ 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 14.9   n/a MPO474744  

85806 (1998 WG8)          Discovered 1998-Nov-25 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 WG8 = 2001 QB84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-03 08:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin