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 ]  
392643 (2011 UN135)
Classification: Main-belt Asteroid          SPK-ID: 2392643
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2549836547054763 6.3827e-08  
a 2.416956339054419 1.8889e-08 au
q 1.800671978458755 1.5463e-07 au
i 15.2555271948151 8.9948e-06 deg
node 209.2333334367025 2.6503e-05 deg
peri 79.23940183899667 4.1542e-05 deg
M 174.465612814292 1.9506e-05 deg
tp 2458335.366266958783
(2018-Aug-04.86626696)
7.7932e-05 TDB
period 1372.466126890668
3.76
1.6089e-05
4.405e-08
d
yr
n .2623015555331648 3.0748e-09 deg/d
Q 3.033240699650082 2.3705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      7030 days (19.25 yr)  
   first obs. used      1999-04-09  
   last obs. used      2018-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57217  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 11:45:23  

Additional Information
 Earth MOID = .858014 au 
 Jupiter MOID = 2.30547 au 
 T_jup = 3.424 
[ 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 17.8   n/a MPO455786  
diameter diameter 2.435 km 0.642 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392643 (2011 UN135)          Discovered 1999-Apr-09 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2011 UN135 = 1999 GW56 = 2010 LL39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-14 04:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin