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 ]  
146307 (2001 KK21)
Classification: Main-belt Asteroid          SPK-ID: 2146307
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1528837429096904 9.062e-08  
a 2.282689785979849 1.504e-08 au
q 1.933703627597529 2.0368e-07 au
i 24.75302918352811 1.0996e-05 deg
node 207.5740319667774 1.284e-05 deg
peri 336.601074701352 2.6072e-05 deg
M 238.3519762762451 2.2374e-05 deg
tp 2459426.168317923467
(2021-Jul-30.66831792)
7.9857e-05 TDB
period 1259.704759367365
3.45
1.245e-05
3.409e-08
d
yr
n .2857812493943384 2.8244e-09 deg/d
Q 2.631675944362168 1.7339e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      6752 days (18.49 yr)  
   first obs. used      2001-05-23  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54003  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:35:35  

Additional Information
 Earth MOID = .944301 au 
 Jupiter MOID = 2.35941 au 
 T_jup = 3.468 
[ 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 16.2   n/a MPO280760  

146307 (2001 KK21)          Discovered 2001-May-23 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-02 10:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin