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 ]  
541665 (2011 UD308)
Classification: Main-belt Asteroid          SPK-ID: 2541665
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2230782150937378 1.1365e-07  
a 2.551126228614771 4.2138e-08 au
q 1.982025543056569 2.8394e-07 au
i 5.963143216804802 7.2924e-06 deg
node 294.5764715185761 0.00010315 deg
peri 44.28715670845188 0.0001059 deg
M 137.0081534130447 2.7415e-05 deg
tp 2458634.077807359316
(2019-May-30.57780736)
0.0001111 TDB
period 1488.320105562648
4.07
3.6875e-05
1.01e-07
d
yr
n .2418834487651464 5.9929e-09 deg/d
Q 3.120226914172973 5.1538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      4387 days (12.01 yr)  
   first obs. used      2009-02-03  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46395  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:02  

Additional Information
 Earth MOID = .976049 au 
 Jupiter MOID = 2.29038 au 
 T_jup = 3.397 
[ 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 17.49   .28645 MPCxxxxx autocmod 2.8

541665 (2011 UD308)          Discovered 2011-Oct-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 UD308 = 2016 AY91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-20 02:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin