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JPL Small-Body Database Browser
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305957 (2009 HK43)
Classification: Main-belt Asteroid          SPK-ID: 2305957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1050030291170427 1.25e-07  
a 2.635339670186272 2.8357e-08 au
q 2.358621022064405 3.3075e-07 au
i 3.168763452019479 8.7589e-06 deg
node 128.0520461846305 0.00014329 deg
peri 25.32926199890446 0.00014787 deg
M 172.0493239336845 3.4006e-05 deg
tp 2457853.700882830236
(2017-Apr-10.20088283)
0.00014513 TDB
period 1562.619811774098
4.28
2.5221e-05
6.905e-08
d
yr
n .2303823343896294 3.7184e-09 deg/d
Q 2.912058318308139 3.1334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      9065 days (24.82 yr)  
   first obs. used      1994-12-01  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65555  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:51  

Additional Information
 Earth MOID = 1.36993 au 
 Jupiter MOID = 2.07664 au 
 T_jup = 3.388 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO402171  

305957 (2009 HK43)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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