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523494 (2017 HQ23)
Classification: Main-belt Asteroid          SPK-ID: 2523494
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1611740169573835 8.6864e-08  
a 2.657456900580093 6.6683e-08 au
q 2.229143897022481 2.5549e-07 au
i 15.40018765360143 9.7454e-06 deg
node 74.46709159779449 3.6832e-05 deg
peri 211.4140936875643 6.252e-05 deg
M 181.4625880072953 6.5292e-05 deg
tp 2459785.237679308484
(2022-Jul-24.73767931)
0.00030756 TDB
period 1582.332584515103
4.33
5.9558e-05
1.631e-07
d
yr
n .2275122205805552 8.5634e-09 deg/d
Q 3.085769904137704 7.7431e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      4790 days (13.11 yr)  
   first obs. used      2006-11-23  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64845  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 13:21:30  

Additional Information
 Earth MOID = 1.2261 au 
 Jupiter MOID = 2.07249 au 
 T_jup = 3.318 
[ 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 16.5   n/a MPO448252  

523494 (2017 HQ23)          Discovered 2006-Nov-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2018-05-31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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