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120841 (1998 KC52)
Classification: Main-belt Asteroid          SPK-ID: 2120841
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .1890547357145955 5.3447e-08  
a 2.674683160122794 1.5298e-08 au
q 2.1690216421655 1.4371e-07 au
i 14.41418345988386 5.7726e-06 deg
node 140.3842836180809 2.0634e-05 deg
peri 37.91309792116941 2.4921e-05 deg
M 58.15855006864314 1.468e-05 deg
tp 2458742.382166089618
(2019-Sep-15.88216609)		 6.398e-05 TDB
period 1597.743067838925
4.37		 1.3707e-05
3.753e-08		 d
yr
n .2253178294097866 1.9331e-09 deg/d
Q 3.180344678080088 1.819e-08 au
   Orbit Determination Parameters
   # obs. used (total)      642  
   data-arc span      8086 days (22.14 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59318  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:57:19  

Additional Information
 Earth MOID = 1.19283 au 
 Jupiter MOID = 1.84593 au 
 T_jup = 3.309 
[ show covariance matrix ]

[ 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 15.1   n/a MPO338106  
diameter diameter 2.922 km 0.618 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.249   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120841 (1998 KC52)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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