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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457453.5 (2016-Mar-06.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2438254044033104 4.1928e-08  
q 1.676238529352414 8.9565e-08 au
tp 2457026.326665859273
(2015-Jan-03.82666586)
4.1912e-05 TDB
node 80.23575954847733 3.9633e-05 deg
peri 220.3721478661536 4.1408e-05 deg
i 6.66652627313462 4.7931e-06 deg
  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
 Jupiter MOID = 2.48083 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.757917364584996E-15 -3.742435137153059E-15 3.584377859658861E-13 -2.904434866977253E-15 5.647027310975788E-14 -3.318425980423484E-16
q -3.742435137153059E-15 8.021820834332857E-15 -6.856771905613406E-13 5.492441511372762E-15 -9.557828615852592E-14 2.524768462356847E-16
tp 3.584377859658861E-13 -6.856771905613406E-13 1.756624414502734E-9 -2.19080754588638E-11 5.193221996579044E-10 -4.468442589832661E-12
node -2.904434866977253E-15 5.492441511372762E-15 -2.19080754588638E-11 1.570783122854482E-9 -1.565735343338658E-9 -3.510341190125979E-11
peri 5.647027310975788E-14 -9.557828615852592E-14 5.193221996579044E-10 -1.565735343338658E-9 1.714601588256258E-9 3.364281524977859E-11
i -3.318425980423484E-16 2.524768462356847E-16 -4.468442589832661E-12 -3.510341190125979E-11 3.364281524977859E-11 2.297358008583359E-11

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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