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20369 (1998 KE16)
Classification: Main-belt Asteroid          SPK-ID: 2020369
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844720016005163 1.4497e-08  
a 2.780160198717172 1.4673e-08 au
q 2.267298482089726 4.3814e-08 au
i 17.1998670508115 4.2815e-07 deg
node 56.82046051953146 2.7669e-06 deg
peri 278.3660643642364 9.4035e-06 deg
M 225.0931123050451 1.3429e-05 deg
tp 2459835.004609881123
(2022-Sep-12.50460988)
6.5414e-05 TDB
period 1693.180114522399
4.64
1.3404e-05
3.67e-08
d
yr
n .2126176635977954 1.6832e-09 deg/d
Q 3.293021915344617 1.738e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1609  
   data-arc span      11108 days (30.41 yr)  
   first obs. used      1990-10-16  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5152  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:18:31  

Additional Information
 Earth MOID = 1.33324 au 
 Jupiter MOID = 2.31238 au 
 T_jup = 3.244 
[ 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 13.57   n/a E2021B10  
diameter diameter 10.894 km 0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20369 (1998 KE16)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KE16 = 1990 UM5 = 1999 SS12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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