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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 
[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2147-Apr-21 18:42 00:04 Thisb 0.042065700267557 0.0420604434820955 0.0420709603332167 4.39138606567125 4.39138602876116 2505346.279205583 3.78376257301299 644.466838091725 27.7185473284467 66.1254095312469 207542.576994275 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 02:57:45 2020-Nov-13 02:57

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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