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 ]  
139290 (2001 KC2)
Classification: Main-belt Asteroid          SPK-ID: 2139290
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3054768709517039 4.1608e-08  
a 2.730098958280534 1.1728e-08 au
q 1.89611687111649 1.1419e-07 au
i 1.323802348146888 4.6201e-06 deg
node 5.27970549908535 0.00018503 deg
peri 239.0610060888303 0.00018527 deg
M 162.9476462541767 6.2452e-06 deg
tp 2458650.718507597456
(2019-Jun-16.21850760)
2.8811e-05 TDB
period 1647.653976210988
4.51
1.0617e-05
2.907e-08
d
yr
n .2184924779096341 1.4079e-09 deg/d
Q 3.564081045444578 1.5311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      9031 days (24.73 yr)  
   first obs. used      1996-02-14  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:30:07  

Additional Information
 Earth MOID = .883702 au 
 Jupiter MOID = 1.47279 au 
 T_jup = 3.285 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.22   n/a E2021B55  
diameter diameter 2.286 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.112   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

139290 (2001 KC2)          Discovered 2001-May-20 by Pravec, P., Kusnirak, P. at Ondrejov
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-31 18:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin