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JPL Small-Body Database Browser
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20198 (1997 CL28)
Classification: Main-belt Asteroid          SPK-ID: 2020198
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516739947595395 6.7154e-08  
a 2.586483561156822 1.4164e-08 au
q 2.194181267056287 1.7844e-07 au
i 2.396952403054014 6.821e-06 deg
node 165.2087352064378 0.00012955 deg
peri 257.4951652703612 0.00013305 deg
M 184.9730904376505 2.8276e-05 deg
tp 2459339.195297671670
(2021-May-04.69529767)
0.00012233 TDB
period 1519.368123603126
4.16
1.2481e-05
3.417e-08
d
yr
n .2369406034044423 1.9463e-09 deg/d
Q 2.978785855257357 1.6313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      720  
   data-arc span      8279 days (22.67 yr)  
   first obs. used      1995-09-02  
   last obs. used      2018-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53034  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:37:49  

Additional Information
 Earth MOID = 1.20842 au 
 Jupiter MOID = 2.33197 au 
 T_jup = 3.404 
[ 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 15.2   n/a MPO299108  

20198 (1997 CL28)          Discovered 1997-Feb-13 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 CL28 = 1995 SR46 = 1997 EY47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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