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 ]  
82250 (2001 KW2)
Classification: Main-belt Asteroid          SPK-ID: 2082250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2433468288117956 4.1921e-08  
a 2.217295337637174 1.0987e-08 au
q 1.677723548683988 8.9519e-08 au
i 6.666750406418414 4.7847e-06 deg
node 80.20027604834775 3.9574e-05 deg
peri 220.4054934427049 4.135e-05 deg
M 229.3256492455497 1.4514e-05 deg
tp 2459438.245401785553
(2021-Aug-11.74540179)
5.0557e-05 TDB
period 1205.962331038649
3.30
8.9634e-06
2.454e-08
d
yr
n .2985167867473488 2.2187e-09 deg/d
Q 2.75686712659036 1.366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      8865 days (24.27 yr)  
   first obs. used      1995-11-19  
   last obs. used      2020-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56985  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:12:31  

Additional Information
 Earth MOID = .668723 au 
 Jupiter MOID = 2.48083 au 
 T_jup = 3.604 
[ 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 16.5   n/a MPO453247  
diameter diameter 2.752 km 0.777 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

82250 (2001 KW2)          Discovered 2001-May-21 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 2001 KW2 = 1995 WE44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 17:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin