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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09502097238106859 3.0534e-08  
a 2.248781130858122 6.7883e-09 au
q 2.035099761131784 6.8611e-08 au
i 3.266712752073854 3.3872e-06 deg
node 96.83856270729663 6.7333e-05 deg
peri 15.07678614197428 7.0556e-05 deg
M 295.0362148073892 2.2237e-05 deg
tp 2459222.773675256443
(2021-Jan-08.27367526)
7.6458e-05 TDB
period 1231.740466708841
3.37
5.5773e-06
1.527e-08
d
yr
n .2922693617121347 1.3234e-09 deg/d
Q 2.46246250058446 7.4334e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1743  
   data-arc span      17056 days (46.70 yr)  
   first obs. used      1974-02-19  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:57:41  

Additional Information
 Earth MOID = 1.05192 au 
 Jupiter MOID = 2.60746 au 
 T_jup = 3.621 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456794.5 (2014-May-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09470854896094252 3.0424e-08  
q 2.036496731890417 6.8391e-08 au
tp 2456757.662597822933
(2014-Apr-10.16259782)
7.3443e-05 TDB
node 96.86447443663027 6.7361e-05 deg
peri 14.79244604321612 7.0623e-05 deg
i 3.266054738661491 3.3858e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1743  
   data-arc span      17056 days (46.70 yr)  
   first obs. used      1974-02-19  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:57:41  

Additional Information
 Jupiter MOID = 2.60746 au 
 T_jup = 3.621 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.256160064210157E-16 -2.072193051215362E-15 1.976128650195627E-13 -6.261141062631796E-15 6.137808582264911E-14 4.777280957667568E-17
q -2.072193051215362E-15 4.677289274936756E-15 -3.318755203256765E-13 1.377516409190044E-14 -1.062354814306708E-13 -7.990371825902007E-17
tp 1.976128650195627E-13 -3.318755203256765E-13 5.39394271044493E-9 -5.892606471904263E-12 1.573344957642498E-9 -4.466819073188384E-13
node -6.261141062631796E-15 1.377516409190044E-14 -5.892606471904263E-12 4.537501383339819E-9 -4.531334030150631E-9 -4.297182155491876E-13
peri 6.137808582264911E-14 -1.062354814306708E-13 1.573344957642498E-9 -4.531334030150631E-9 4.987645555585009E-9 3.046716607847058E-13
i 4.777280957667568E-17 -7.990371825902007E-17 -4.466819073188384E-13 -4.297182155491876E-13 3.046716607847058E-13 1.146375065042269E-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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