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 ]  
172532 (2003 UN8)
Classification: Main-belt Asteroid          SPK-ID: 2172532
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217755424911734 4.735e-08  
a 2.431157791984246 1.2509e-08 au
q 1.901759993963243 1.1932e-07 au
i 10.48898111927771 7.2975e-06 deg
node 38.6503388729049 2.8527e-05 deg
peri 33.82775878227603 3.8778e-05 deg
M 115.2090609239628 2.6402e-05 deg
tp 2458557.399455588618
(2019-Mar-14.89945559)
9.8867e-05 TDB
period 1384.580298709118
3.79
1.0686e-05
2.926e-08
d
yr
n .260006588520462 2.0067e-09 deg/d
Q 2.960555590005248 1.5233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      7507 days (20.55 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:19:31  

Additional Information
 Earth MOID = .92488 au 
 Jupiter MOID = 2.39323 au 
 T_jup = 3.452 
[ 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 16.6   n/a MPO469848  
diameter diameter 3.354 km 0.770 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172532 (2003 UN8)          Discovered 2003-Oct-16 by LONEOS at Anderson Mesa
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-20 02:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin