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 ]  
118304 (1998 UQ20)
Classification: Main-belt Asteroid          SPK-ID: 2118304
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2587686648779035 8.862e-08  
a 2.302851204287256 6.101e-09 au
q 1.706945472741371 2.0323e-07 au
i .9968353888548448 4.7941e-06 deg
node 96.07841343770227 0.00027286 deg
peri 265.0769406942488 0.00027315 deg
M 145.9698698946357 1.4399e-05 deg
tp 2458682.943266402139
(2019-Jul-18.44326640)
5.0328e-05 TDB
period 1276.430706074617
3.49
5.0725e-06
1.389e-08
d
yr
n .2820364617418999 1.1208e-09 deg/d
Q 2.898756935833142 7.6797e-09 au
  Orbit Determination Parameters
   # obs. used (total)      703  
   data-arc span      7789 days (21.33 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:12:28  

Additional Information
 Earth MOID = .702744 au 
 Jupiter MOID = 2.55687 au 
 T_jup = 3.545 
[ 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 16.25   n/a E2021B55  

118304 (1998 UQ20)          Discovered 1998-Oct-28 by Korlevic, K. at Visnjan
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-13 05:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin