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17450 (1990 QO4)
Classification: Main-belt Asteroid          SPK-ID: 2017450
[ 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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08047864447473961 4.3249e-08  
a 2.998303625994029 1.9746e-08 au
q 2.757004214450333 1.3834e-07 au
i 9.630910304123606 5.6672e-06 deg
node 353.6755793099247 2.4347e-05 deg
peri 308.912249102333 4.2396e-05 deg
M 332.7103222752393 3.4124e-05 deg
tp 2459344.249965124190
(2021-May-09.74996512)		 0.00017959 TDB
period 1896.320944741468
5.19		 1.8733e-05
5.129e-08		 d
yr
n .1898412824043769 1.8754e-09 deg/d
Q 3.239603037537725 2.1335e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1556  
   data-arc span      10949 days (29.98 yr)  
   first obs. used      1990-08-23  
   last obs. used      2020-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51865  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:20:57  

Additional Information
 Earth MOID = 1.7528 au 
 Jupiter MOID = 2.041 au 
 T_jup = 3.227 
[ 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 13.46   n/a E2021B10  

17450 (1990 QO4)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QO4 = 1998 CY1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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