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441806 (2009 HJ24)
Classification: Main-belt Asteroid          SPK-ID: 2441806
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010245592113669 7.6578e-08  
a 3.076933083683306 4.1292e-08 au
q 2.458393966812997 2.4034e-07 au
i 17.60075923107194 7.7427e-06 deg
node 189.6375725394884 3.1982e-05 deg
peri 54.75900240237038 4.2227e-05 deg
M 2.478975706835093 2.2975e-05 deg
tp 2458986.924830088001
(2020-May-17.42483009)
0.00012577 TDB
period 1971.403412645326
5.40
3.9684e-05
1.086e-07
d
yr
n .1826110260796061 3.6759e-09 deg/d
Q 3.695472200553614 4.9593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      5322 days (14.57 yr)  
   first obs. used      2005-09-29  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:20  

Additional Information
 Earth MOID = 1.49264 au 
 Jupiter MOID = 1.4636 au 
 T_jup = 3.127 
[ 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 16.5   n/a MPO434639  

441806 (2009 HJ24)          Discovered 2009-Apr-02 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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