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JPL Small-Body Database Browser
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305986 (2009 HF105)
Classification: Main-belt Asteroid          SPK-ID: 2305986
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0502003423791756 4.9847e-08  
a 2.986738003639989 4.2505e-08 au
q 2.836802733260366 1.7201e-07 au
i 8.715580754320687 5.9533e-06 deg
node 232.529395106373 3.2585e-05 deg
peri 65.20715701707041 6.8728e-05 deg
M 276.0184766963553 6.2144e-05 deg
tp 2459040.320396733869
(2020-Jul-09.82039673)
0.00032874 TDB
period 1885.359262319088
5.16
4.0247e-05
1.102e-07
d
yr
n .1909450401284165 4.0761e-09 deg/d
Q 3.136673274019612 4.4639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      5931 days (16.24 yr)  
   first obs. used      2003-03-01  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57591  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:12  

Additional Information
 Earth MOID = 1.83401 au 
 Jupiter MOID = 1.96455 au 
 T_jup = 3.238 
[ 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 16.2   n/a MPO437358  

305986 (2009 HF105)          Discovered 2009-Apr-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 HF105 = 2003 EN56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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