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 ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09775939521362498 7.3707e-08  
a 2.607961644288197 3.3658e-08 au
q 2.353008891202252 1.9815e-07 au
i 12.56970506045611 1.4553e-05 deg
node 309.2806299898513 2.8046e-05 deg
peri 92.58147217669367 0.00010298 deg
M 330.5798917687281 9.3224e-05 deg
tp 2459126.216416173436
(2020-Oct-03.71641617)
0.00039882 TDB
period 1538.332539998281
4.21
2.978e-05
8.153e-08
d
yr
n .2340196223115727 4.5304e-09 deg/d
Q 2.862914397374142 3.6948e-08 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      6214 days (17.01 yr)  
   first obs. used      2003-10-18  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:53:00  

Additional Information
 Earth MOID = 1.40179 au 
 Jupiter MOID = 2.48254 au 
 T_jup = 3.371 
[ 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 2020-Dec-02 11:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin