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JPL Small-Body Database Browser
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312574 (2009 HR65)
Classification: Main-belt Asteroid          SPK-ID: 2312574
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08874073893758221 9.1923e-08  
a 2.81331011006858 4.5339e-08 au
q 2.563654892040524 2.4739e-07 au
i 11.61218856827711 1.0774e-05 deg
node 69.04365460112813 4.8746e-05 deg
peri 164.1976798068511 7.963e-05 deg
M 36.11653701048076 6.061e-05 deg
tp 2458427.586684446459
(2018-Nov-05.08668445)
0.00029075 TDB
period 1723.553772090903
4.72
4.1665e-05
1.141e-07
d
yr
n .2088707679617512 5.0492e-09 deg/d
Q 3.062965328096637 4.9362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      5559 days (15.22 yr)  
   first obs. used      2004-04-12  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55501  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:03  

Additional Information
 Earth MOID = 1.55361 au 
 Jupiter MOID = 1.94651 au 
 T_jup = 3.284 
[ 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 16.5   n/a MPO476404  

312574 (2009 HR65)          Discovered 2009-Apr-23 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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