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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
212347 (2005 UX121)
Classification: Main-belt Asteroid          SPK-ID: 2212347
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883686185571062 4.9327e-08  
a 3.145022246722428 4.1597e-08 au
q 2.552598750775958 1.4951e-07 au
i 2.195750236943579 5.776e-06 deg
node 20.94969116742415 0.00014963 deg
peri 237.823600960104 0.00015057 deg
M 276.4517523340635 1.7662e-05 deg
tp 2459073.290622839173
(2020-Aug-11.79062284)
0.00010393 TDB
period 2037.201604785979
5.58
4.0417e-05
1.107e-07
d
yr
n .1767129964723449 3.5059e-09 deg/d
Q 3.737445742668898 4.9433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      261  
   data-arc span      5786 days (15.84 yr)  
   first obs. used      2003-04-25  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .626  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:24:03  

Additional Information
 Earth MOID = 1.53798 au 
 Jupiter MOID = 1.3423 au 
 T_jup = 3.180 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO454525  
diameter diameter 4.061 km 0.701 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212347 (2005 UX121)          Discovered 2005-Oct-24 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 UX121 = 2003 HX30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin