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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893843129621455 4.6276e-08  
a 2.676631027408359 1.4129e-08 au
q 2.169719099229465 1.2179e-07 au
i 14.42005899099913 5.2009e-06 deg
node 140.3668032700679 1.9504e-05 deg
peri 38.14111952093287 2.4056e-05 deg
M 102.9410067367947 1.4356e-05 deg
tp 2458743.130606063936
(2019-Sep-16.63060606)
6.2034e-05 TDB
period 1599.488746384391
4.38
1.2665e-05
3.467e-08
d
yr
n .2250719180199123 1.7821e-09 deg/d
Q 3.183542955587253 1.6805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      8127 days (22.25 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:21  

Additional Information
 Earth MOID = 1.19335 au 
 Jupiter MOID = 1.84248 au 
 T_jup = 3.308 
[ 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 15.06   n/a E2021B55  
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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