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 ]  
441757 (2009 CK21)
Classification: Main-belt Asteroid          SPK-ID: 2441757
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 .09775436598285353 7.569e-08  
a 2.610052861320753 8.2636e-08 au
q 2.35490879868061 2.2966e-07 au
i 12.56266082792028 1.9143e-05 deg
node 309.2919534822721 2.8309e-05 deg
peri 92.07716124154118 0.00022471 deg
M 237.5154270378112 0.00023254 deg
tp 2459124.524115079345
(2020-Oct-02.02411508)
0.0010164 TDB
period 1540.183199126639
4.22
7.3145e-05
2.003e-07
d
yr
n .2337384281325351 1.1101e-08 deg/d
Q 2.865196923960895 9.0715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      4316 days (11.82 yr)  
   first obs. used      2003-10-18  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51112  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:35:16  

Additional Information
 Earth MOID = 1.4029 au 
 Jupiter MOID = 2.48373 au 
 T_jup = 3.370 
[ 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 17.1   n/a MPO342879  

441757 (2009 CK21)          Discovered 2009-Jan-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 CK21 = 2011 QU86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin