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 ]  
243499 (2009 UA131)
Classification: Jupiter Trojan          SPK-ID: 2243499
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03162045219920263 1.0587e-07  
a 5.09490019502266 2.536e-07 au
q 4.933797146946238 7.3186e-07 au
i 16.64822601177188 9.1744e-06 deg
node 278.9644550002199 3.2966e-05 deg
peri 112.480210371878 0.00016861 deg
M 337.4336786386955 0.0001649 deg
tp 2459263.805672903403
(2021-Feb-18.30567290)
0.0019233 TDB
period 4200.509277855345
11.50
0.00031362
8.586e-07
d
yr
n .08570389354878541 6.3988e-09 deg/d
Q 5.256003243099083 2.6161e-07 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6827 days (18.69 yr)  
   first obs. used      2001-01-21  
   last obs. used      2019-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56395  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:15:45  

Additional Information
 Earth MOID = 3.9814 au 
 Jupiter MOID = .0610456 au 
 T_jup = 2.916 
[ 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 12.8   n/a MPO254436  
diameter diameter 13.499 km 0.911 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.088   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

243499 (2009 UA131)          Discovered 2009-Oct-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-21 11:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin