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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2434182261733986 3.8293e-08  
a 2.21695056608094 9.8779e-09 au
q 1.677304391771406 8.2431e-08 au
i 6.66677611825949 4.6555e-06 deg
node 80.19604973102582 3.8823e-05 deg
peri 220.4463013527134 4.0471e-05 deg
M 288.9981288647662 1.323e-05 deg
tp 2459438.293365741011
(2021-Aug-11.79336574)
4.5124e-05 TDB
period 1205.681065837199
3.30
8.0581e-06
2.206e-08
d
yr
n .2985864257145184 1.9956e-09 deg/d
Q 2.756596740390474 1.2282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      527  
   data-arc span      9222 days (25.25 yr)  
   first obs. used      1995-11-19  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:56:42  

Additional Information
 Earth MOID = .666369 au 
 Jupiter MOID = 2.48077 au 
 T_jup = 3.605 
[ 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 16.49   n/a E2021B10  
diameter diameter 2.752 km 0.777 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 109.385 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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