Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
415029 (2011 UL21)
Classification: Apollo [NEO, PHA]          SPK-ID: 2415029
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6531701314428493 2.3723e-07  
a 2.122499152346553 4.5591e-08 AU
q .7361461020210188 5.1167e-07 AU
i 34.84752285867693 3.4998e-05 deg
node 275.608866178206 4.356e-05 deg
peri 284.7244017716413 3.6816e-05 deg
M 342.7069411013458 2.6032e-05 deg
tp 2457054.754908446796
(2015-Feb-01.25490845)
8.2987e-05 JED
period 1129.457035641435
3.09
3.6391e-05
9.963e-08
d
yr
n .3187372238515924 1.027e-08 deg/d
Q 3.508852202672087 7.537e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      9152 days (25.06 yr)  
   first obs. used      1989-10-29  
   last obs. used      2014-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5449  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-20 05:19:14  

Additional Information
 Earth MOID = .0208824 AU 
 T_jup = 3.245 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7 mag n/a MPO311355  

415029 (2011 UL21)          Discovered 2011-Oct-17 by CSS at Catalina (703)
Reference: Last Updated: 2014-11-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-29 07:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin