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20316 Jerahalpern (1998 FU138)
Classification: Main-belt Asteroid          SPK-ID: 2020316
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1653137347030768 3.4658e-08  
a 2.425846179659427 9.1522e-09 au
q 2.024820487884736 8.3239e-08 au
i 1.439242299712991 3.968e-06 deg
node 307.6811572720969 0.00018944 deg
peri 119.808132413464 0.00019025 deg
M 52.85590556634742 1.4839e-05 deg
tp 2458797.879056709648
(2019-Nov-10.37905671)
5.6905e-05 TDB
period 1380.045215438871
3.78
7.81e-06
2.138e-08
d
yr
n .2608610181554926 1.4763e-09 deg/d
Q 2.826871871434118 1.0665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1054  
   data-arc span      15590 days (42.68 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:03:32  

Additional Information
 Earth MOID = 1.03925 au 
 Jupiter MOID = 2.46108 au 
 T_jup = 3.491 
[ 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 MPO263529  

20316 Jerahalpern           Discovered 1998 Mar. 28 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jerald Halpern mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Maimonides School, Brookline, Massachusetts.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

[ show close-approach data ]
Alternate Designations
 1998 FU138 = 1977 RZ9 = 1989 YR2 = 2000 UN78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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