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JPL Small-Body Database Browser
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305961 (2009 HZ46)
Classification: Main-belt Asteroid          SPK-ID: 2305961
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05551156120051697 4.7664e-08  
a 3.145264798798978 4.8914e-08 au
q 2.970666239428617 1.5339e-07 au
i 11.26392389544223 6.2842e-06 deg
node 107.62190083 3.0902e-05 deg
peri 245.1639724908352 7.2906e-05 deg
M 157.5284051403885 6.3857e-05 deg
tp 2457708.960429505389
(2016-Nov-16.46042951)
0.00036324 TDB
period 2037.437280546496
5.58
4.7528e-05
1.301e-07
d
yr
n .1766925556125282 4.1218e-09 deg/d
Q 3.319863358169339 5.1629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      6261 days (17.14 yr)  
   first obs. used      2002-01-13  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61274  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:11:35  

Additional Information
 Earth MOID = 1.98326 au 
 Jupiter MOID = 1.99141 au 
 T_jup = 3.177 
[ 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 15.4   n/a MPO433971  

305961 (2009 HZ46)          Discovered 2009-Apr-17 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 HZ46 = 2002 AS195 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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