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11724 Ronaldhsu (1998 HH146)
Classification: Main-belt Asteroid          SPK-ID: 2011724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09502097257629591 3.0693e-08  
a 2.248781131126844 7.0964e-09 au
q 2.035099760935948 6.8806e-08 au
i 3.266712798566879 3.3933e-06 deg
node 96.83856560270398 6.9042e-05 deg
peri 15.07678422003107 7.2473e-05 deg
M 295.0362136446454 2.3609e-05 deg
tp 2459222.773679274613
(2021-Jan-08.27367927)
8.1236e-05 TDB
period 1231.740466929624
3.37
5.8305e-06
1.596e-08
d
yr
n .292269361659747 1.3835e-09 deg/d
Q 2.462462501317739 7.7707e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1674  
   data-arc span      16962 days (46.44 yr)  
   first obs. used      1974-02-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:27:18  

Additional Information
 Earth MOID = 1.05192 au 
 Jupiter MOID = 2.60746 au 
 T_jup = 3.621 
[ 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 14.6   n/a MPO449027  

11724 Ronaldhsu           Discovered 1998 Apr. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Ronald Hsu (b. 1985) is a finalist in the 2002 Intel International Science and Engineering Fair for his mathematics project. He attends the West Shore Jr/Sr High School, Palm Bay, Florida, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 HH146 = 1974 DM = 1976 YF7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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