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JPL Small-Body Database Browser
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249450 (2009 HF5)
Classification: Main-belt Asteroid          SPK-ID: 2249450
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .194660991729015 5.7316e-08  
a 2.432004268215918 1.8072e-08 au
q 1.95858790547581 1.3678e-07 au
i 3.807489169489948 5.0321e-06 deg
node 126.3306540051309 7.7831e-05 deg
peri 239.9893641592192 7.8817e-05 deg
M 68.94260202749727 1.0701e-05 deg
tp 2458335.204370284053
(2018-Aug-04.70437028)
4.0657e-05 TDB
period 1385.303482738419
3.79
1.5441e-05
4.228e-08
d
yr
n .2598708546436082 2.8967e-09 deg/d
Q 2.905420630956026 2.159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      7037 days (19.27 yr)  
   first obs. used      1999-10-19  
   last obs. used      2019-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:19:32  

Additional Information
 Earth MOID = .959366 au 
 Jupiter MOID = 2.554 au 
 T_jup = 3.478 
[ 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 MPO454849  
diameter diameter 2.227 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249450 (2009 HF5)          Discovered 2009-Apr-17 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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