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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08013661371754889 4.3567e-08  
a 2.996973950097467 1.9913e-08 au
q 2.756806606336949 1.3896e-07 au
i 9.631251207683876 5.7291e-06 deg
node 353.6886893342098 2.4371e-05 deg
peri 309.0852327772924 4.2541e-05 deg
M 294.53324264791 3.4373e-05 deg
tp 2459345.120579581682
(2021-May-10.62057958)
0.00018061 TDB
period 1895.059625180061
5.19
1.8887e-05
5.171e-08
d
yr
n .1899676375437497 1.8933e-09 deg/d
Q 3.237141293857984 2.1509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1520  
   data-arc span      10891 days (29.82 yr)  
   first obs. used      1990-08-23  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:10:37  

Additional Information
 Earth MOID = 1.75452 au 
 Jupiter MOID = 2.04413 au 
 T_jup = 3.228 
[ 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 13.4   n/a MPO384904  

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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