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JPL Small-Body Database Browser
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48221 (2001 KA41)
Classification: Main-belt Asteroid          SPK-ID: 2048221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309655781808829 3.0286e-08  
a 2.614180013687403 1.1052e-08 au
q 2.271812416725924 7.949e-08 au
i 13.90709200523814 4.1973e-06 deg
node 177.6022627577775 1.7259e-05 deg
peri 130.0468619381626 2.5358e-05 deg
M 31.21875148515502 1.955e-05 deg
tp 2458466.620311973984
(2018-Dec-14.12031197)
8.3607e-05 TDB
period 1543.837770459332
4.23
9.7905e-06
2.68e-08
d
yr
n .2331851227431044 1.4788e-09 deg/d
Q 2.956547610648882 1.25e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      17763 days (48.63 yr)  
   first obs. used      1971-04-16  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50327  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:10:24  

Additional Information
 Earth MOID = 1.2836 au 
 Jupiter MOID = 2.43361 au 
 T_jup = 3.355 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457057.5 (2015-Feb-04.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324882877892322 3.0207e-08  
q 2.267896520433406 7.9377e-08 au
tp 2456923.898487661900
(2014-Sep-23.39848766)
8.0586e-05 TDB
node 177.6358489538259 1.724e-05 deg
peri 130.3291398943832 2.5189e-05 deg
i 13.91557351415034 4.1992e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      17763 days (48.63 yr)  
   first obs. used      1971-04-16  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50327  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:10:24  

Additional Information
 Jupiter MOID = 2.43361 au 
 T_jup = 3.355 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.124675487951268E-16 -2.380234144707384E-15 -7.353312535737606E-14 2.096171829217925E-15 -4.432130843064783E-14 2.205609455602372E-16
q -2.380234144707384E-15 6.300703857660622E-15 3.029529446554362E-13 -4.17362809989493E-15 1.423783033963727E-13 5.454846397657895E-17
tp -7.353312535737606E-14 3.029529446554362E-13 6.494091015711069E-9 2.822812831688161E-11 1.499614529272298E-9 2.393863260181177E-12
node 2.096171829217925E-15 -4.17362809989493E-15 2.822812831688161E-11 2.972092348548518E-10 -2.816596322209344E-10 2.517916456295428E-11
peri -4.432130843064783E-14 1.423783033963727E-13 1.499614529272298E-9 -2.816596322209344E-10 6.345046062119181E-10 -2.389200227109574E-11
i 2.205609455602372E-16 5.454846397657895E-17 2.393863260181177E-12 2.517916456295428E-11 -2.389200227109574E-11 1.763343101195393E-11

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 14.6   n/a MPO439421  
diameter diameter 2.941 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.389   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48221 (2001 KA41)          Discovered 2001-May-23 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 KA41 = 2000 CA97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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