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

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2433468287917208 4.1938e-08  
a 2.217295337522007 1.099e-08 au
q 1.677723548641359 8.9554e-08 au
i 6.666750383084321 4.7936e-06 deg
node 80.20027682714169 3.9619e-05 deg
peri 220.4054930768478 4.1399e-05 deg
M 229.3256489073358 1.452e-05 deg
tp 2459438.245402884429
(2021-Aug-11.74540288)
5.0575e-05 TDB
period 1205.962330944692
3.30
8.9663e-06
2.455e-08
d
yr
n .2985167867706062 2.2195e-09 deg/d
Q 2.756867126402656 1.3665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      8841 days (24.21 yr)  
   first obs. used      1995-11-19  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57304  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 19:30:45  

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 ]
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