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 ]  
233959 (2009 YX21)
Classification: Main-belt Asteroid          SPK-ID: 2233959
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1697762653753545 6.5014e-08  
a 2.679212205887677 2.3981e-08 au
q 2.224345563424002 1.816e-07 au
i 3.41420964556276 7.4943e-06 deg
node 302.0055654267135 0.00013197 deg
peri 101.4456668822524 0.00013475 deg
M 97.35223422746537 2.6223e-05 deg
tp 2458167.335837194700
(2018-Feb-17.83583719)
0.00011522 TDB
period 1601.802977069362
4.39
2.1506e-05
5.888e-08
d
yr
n .2247467417363972 3.0175e-09 deg/d
Q 3.134078848351352 2.8052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   data-arc span      8061 days (22.07 yr)  
   first obs. used      1997-01-31  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70279  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:54:02  

Additional Information
 Earth MOID = 1.23578 au 
 Jupiter MOID = 2.27642 au 
 T_jup = 3.354 
[ 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 17.0   n/a MPO427345  

233959 (2009 YX21)          Discovered 2009-Dec-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

Alternate Designations
 2009 YX21 = 2004 UY3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-12 01:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin