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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09466247770623402 3.0678e-08  
a 2.249270556870264 7.1813e-09 au
q 2.036349032925244 6.8742e-08 au
i 3.266630371762573 3.3942e-06 deg
node 96.83793521189357 6.905e-05 deg
peri 15.08175926220699 7.2513e-05 deg
M 178.1129864337967 2.3483e-05 deg
tp 2457990.887225427398
(2017-Aug-25.38722543)
7.9256e-05 TDB
period 1232.142603637207
3.37
5.9009e-06
1.616e-08
d
yr
n .2921739731564373 1.3993e-09 deg/d
Q 2.462192080815284 7.8611e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1667  
   data-arc span      16692 days (45.70 yr)  
   first obs. used      1974-02-19  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48178  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:38:58  

Additional Information
 Earth MOID = 1.05342 au 
 Jupiter MOID = 2.60902 au 
 T_jup = 3.620 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456683.5 (2014-Jan-26.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09469218962225599 3.0593e-08  
q 2.036469824641089 6.8604e-08 au
tp 2456757.943421477387
(2014-Apr-10.44342148)
7.7346e-05 TDB
node 96.86491721926461 6.9077e-05 deg
peri 14.89148909563877 7.2553e-05 deg
i 3.266197644679616 3.3932e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1667  
   data-arc span      16692 days (45.70 yr)  
   first obs. used      1974-02-19  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48178  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:38:58  

Additional Information
 Jupiter MOID = 2.60902 au 
 T_jup = 3.620 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.359393731931523E-16 -2.089580459391219E-15 2.706825668267561E-13 -4.530680168962644E-15 7.946524328728549E-14 7.159905999575878E-17
q -2.089580459391219E-15 4.70651992954179E-15 -4.564653899307702E-13 1.011335317638917E-14 -1.362953764672709E-13 -1.272149816331049E-16
tp 2.706825668267561E-13 -4.564653899307702E-13 5.982348312313035E-9 -4.386016039823081E-12 1.731965136446081E-9 -4.257868931900772E-13
node -4.530680168962644E-15 1.011335317638917E-14 -4.386016039823081E-12 4.771685613753848E-9 -4.764749778159803E-9 2.534957155694279E-12
peri 7.946524328728549E-14 -1.362953764672709E-13 1.731965136446081E-9 -4.764749778159803E-9 5.263877529685227E-9 -2.650000247836717E-12
i 7.159905999575878E-17 -1.272149816331049E-16 -4.257868931900772E-13 2.534957155694279E-12 -2.650000247836717E-12 1.15136870828798E-11

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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