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447016 (2004 HK22)
Classification: Main-belt Asteroid          SPK-ID: 2447016
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .226227511414664 9.4348e-08  
a 2.698464832864206 2.1574e-08 au
q 2.087997849085349 2.5504e-07 au
i 6.508295261350251 8.9822e-06 deg
node 22.88490523380403 8.3969e-05 deg
peri 123.4645633751346 9.3501e-05 deg
M 269.9097153829106 2.6498e-05 deg
tp 2459405.680959879278
(2021-Jul-10.18095988)
0.00011845 TDB
period 1619.099619637238
4.43
1.9417e-05
5.316e-08
d
yr
n .2223457998715722 2.6665e-09 deg/d
Q 3.308931816643062 2.6455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      8060 days (22.07 yr)  
   first obs. used      1995-03-01  
   last obs. used      2017-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55562  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 11:43:43  

Additional Information
 Earth MOID = 1.10776 au 
 Jupiter MOID = 1.72343 au 
 T_jup = 3.322 
[ 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 17.2   n/a MPO495219  

447016 (2004 HK22)          Discovered 2004-Apr-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

[ show close-approach data ]
Alternate Designations
 2004 HK22 = 2008 BG13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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