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JPL Small-Body Database Browser
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35766 (1999 HB9)
Classification: Main-belt Asteroid          SPK-ID: 2035766
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09662032634884675 3.1689e-08  
a 2.342131584196379 7.925e-09 au
q 2.115834066179383 7.3795e-08 au
i 3.476184471940698 3.4711e-06 deg
node 220.1270853296303 5.93e-05 deg
peri 240.0937150963805 6.3192e-05 deg
M 54.37311143380232 2.0006e-05 deg
tp 2458802.758853523201
(2019-Nov-15.25885352)
7.284e-05 TDB
period 1309.228235325757
3.58
6.645e-06
1.819e-08
d
yr
n .2749711549800378 1.3956e-09 deg/d
Q 2.568429102213375 8.6907e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      8218 days (22.50 yr)  
   first obs. used      1997-10-25  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53896  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:08:45  

Additional Information
 Earth MOID = 1.13522 au 
 Jupiter MOID = 2.55103 au 
 T_jup = 3.555 
[ 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 15.5   n/a MPO412439  

35766 (1999 HB9)          Discovered 1999-Apr-17 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 HB9 = 2001 XU85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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