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JPL Small-Body Database Browser
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20232 (1997 YK2)
Classification: Main-belt Asteroid          SPK-ID: 2020232
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034737586527024 3.625e-08  
a 2.142223199377907 6.8632e-09 au
q 1.920559313065257 7.7334e-08 au
i 3.989888842818992 4.1286e-06 deg
node 299.1904167348789 5.1897e-05 deg
peri 344.6123577746546 5.638e-05 deg
M 110.8785670561279 2.1966e-05 deg
tp 2458247.771454018461
(2018-May-09.27145402)
7.0078e-05 TDB
period 1145.237352220418
3.14
5.5036e-06
1.507e-08
d
yr
n .3143453182888439 1.5106e-09 deg/d
Q 2.363887085690556 7.5733e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1453  
   data-arc span      11209 days (30.69 yr)  
   first obs. used      1989-03-02  
   last obs. used      2019-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46618  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 00:05:55  

Additional Information
 Earth MOID = .903855 au 
 Jupiter MOID = 2.74667 au 
 T_jup = 3.702 
[ 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 15.3   n/a MPO347680  
diameter diameter 1.997 km 0.452 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20232 (1997 YK2)          Discovered 1997-Dec-21 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 YK2 = 1989 ES5 = 1993 PP6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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