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469225 (2016 HR9)
Classification: Main-belt Asteroid          SPK-ID: 2469225
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357302875313003 1.8243e-07  
a 2.251974486019951 3.6303e-08 au
q 1.94631334151931 4.2938e-07 au
i 21.17279759529585 1.3247e-05 deg
node 207.7562522569367 1.6894e-05 deg
peri 13.60367675317713 3.2603e-05 deg
M 73.7360282020081 2.1562e-05 deg
tp 2458747.674505455594
(2019-Sep-21.17450546)
7.3239e-05 TDB
period 1234.365075735221
3.38
2.9848e-05
8.172e-08
d
yr
n .2916479144434432 7.0524e-09 deg/d
Q 2.557635630520591 4.1231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      4643 days (12.71 yr)  
   first obs. used      2006-05-21  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5866  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 06:59:05  

Additional Information
 Earth MOID = .943712 au 
 Jupiter MOID = 2.41439 au 
 T_jup = 3.526 
[ 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 17.6   n/a MPO437767  

469225 (2016 HR9)          Discovered 2006-May-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-06-21

Alternate Designations
 2016 HR9 = 2006 KD124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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