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JPL Small-Body Database Browser
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305912 (2009 FH55)
Classification: Main-belt Asteroid          SPK-ID: 2305912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02453614857123168 6.3891e-08  
a 2.665550761852288 3.6812e-08 au
q 2.60014841233532 1.5603e-07 au
i 3.699867967890139 6.2934e-06 deg
node 80.17729276584657 0.00010655 deg
peri 165.6171984218783 0.00019908 deg
M 38.22149161707561 0.00016343 deg
tp 2458431.734374256554
(2018-Nov-09.23437426)
0.00072315 TDB
period 1589.567091633274
4.35
3.2929e-05
9.015e-08
d
yr
n .2264767570333261 4.6916e-09 deg/d
Q 2.730953111369256 3.7716e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      5245 days (14.36 yr)  
   first obs. used      2005-04-12  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56353  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:09  

Additional Information
 Earth MOID = 1.58602 au 
 Jupiter MOID = 2.24918 au 
 T_jup = 3.380 
[ 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 17.0   n/a MPO440441  

305912 (2009 FH55)          Discovered 2009-Mar-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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