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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103571366570307 3.6289e-08  
a 2.141847527925154 6.2152e-09 au
q 1.920013452472712 7.7351e-08 au
i 3.990265662658406 4.0012e-06 deg
node 299.1869244143599 4.5138e-05 deg
peri 344.816284171037 4.8999e-05 deg
M 299.2717581577298 2.0035e-05 deg
tp 2459393.638769937645
(2021-Jun-28.13876994)
6.3831e-05 TDB
period 1144.936113219655
3.13
4.9835e-06
1.364e-08
d
yr
n .3144280242743416 1.3686e-09 deg/d
Q 2.363681603377596 6.8589e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1628  
   data-arc span      11403 days (31.22 yr)  
   first obs. used      1989-03-02  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:15:41  

Additional Information
 Earth MOID = .901992 au 
 Jupiter MOID = 2.74684 au 
 T_jup = 3.703 
[ 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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