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 ]  
442408 (2011 UG81)
Classification: Main-belt Asteroid          SPK-ID: 2442408
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1185730185966134 1.0615e-07  
a 2.774723434640393 5.9802e-08 au
q 2.445716101224319 3.368e-07 au
i 3.499699439494162 7.235e-06 deg
node 209.0628186008276 0.00011729 deg
peri 137.1121884947408 0.0001222 deg
M 356.2135718903014 3.8177e-05 deg
tp 2459018.256411244701
(2020-Jun-17.75641124)
0.00017938 TDB
period 1688.21587599113
4.62
5.4577e-05
1.494e-07
d
yr
n .2132428708435457 6.8938e-09 deg/d
Q 3.103730768056467 6.6893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      4703 days (12.88 yr)  
   first obs. used      2006-08-21  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56751  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:08  

Additional Information
 Earth MOID = 1.44018 au 
 Jupiter MOID = 2.3027 au 
 T_jup = 3.323 
[ 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 17.2   n/a MPO440831  

442408 (2011 UG81)          Discovered 2006-Aug-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-03 12:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin