Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
173222 (1998 UQ8)
Classification: Main-belt Asteroid          SPK-ID: 2173222
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .312370735927353 1.0291e-07  
a 2.665877766564193 1.7844e-08 AU
q 1.833135566730168 2.7845e-07 AU
i 4.08986501225739 8.5299e-06 deg
node 70.3011324783957 0.00019181 deg
peri 331.9050634737557 0.00019253 deg
M 195.7551948449873 2.0486e-05 deg
tp 2457525.850504376702
(2016-May-17.35050438)
9.5815e-05 JED
period 1589.859608218136
4.35
1.5962e-05
4.37e-08
d
yr
n .2264350878147514 2.2734e-09 deg/d
Q 3.498619966398218 2.3417e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      5731 days (15.69 yr)  
   first obs. used      1998-09-17  
   last obs. used      2014-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .67309  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 17:22:29  

Additional Information
 Earth MOID = .841909 AU 
 T_jup = 3.308 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4 mag n/a MPO257780  

173222 (1998 UQ8)          Discovered 1998-Oct-17 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-31 03:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin