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90898 (1997 CQ19)
Classification: Main-belt Asteroid          SPK-ID: 2090898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2270825272403323 3.7072e-08  
a 2.612974920837471 1.4961e-08 au
q 2.019613972198091 9.5821e-08 au
i 6.205307958323238 4.662e-06 deg
node 91.71684457617366 4.8964e-05 deg
peri 333.4714669533583 5.0834e-05 deg
M 249.0721919243275 1.6444e-05 deg
tp 2459475.878153812334
(2021-Sep-18.37815381)
7.3054e-05 TDB
period 1542.770368776194
4.22
1.325e-05
3.628e-08
d
yr
n .2333464573120956 2.0042e-09 deg/d
Q 3.206335869476851 1.8359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      8169 days (22.37 yr)  
   first obs. used      1997-02-11  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54012  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:19:53  

Additional Information
 Earth MOID = 1.03561 au 
 Jupiter MOID = 2.11793 au 
 T_jup = 3.364 
[ 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 15.1   n/a MPO337937  

90898 (1997 CQ19)          Discovered 1997-Feb-11 by Kobayashi, T. at Oizumi
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Alternate Designations
 1997 CQ19 = 2000 WZ61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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