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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1651641262628877 3.5983e-08  
a 2.425478782232226 9.9187e-09 au
q 2.024876698395667 8.7398e-08 au
i 1.439159035573616 4.2607e-06 deg
node 307.6862554819162 0.00021486 deg
peri 119.8656423865927 0.00021563 deg
M 308.4552299574522 1.6484e-05 deg
tp 2458798.049871846752
(2019-Nov-10.54987185)
6.3346e-05 TDB
period 1379.731712957997
3.78
8.4634e-06
2.317e-08
d
yr
n .2609202909659868 1.6005e-09 deg/d
Q 2.826080866068784 1.1557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      15426 days (42.23 yr)  
   first obs. used      1977-09-09  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54469  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:43:16  

Additional Information
 Earth MOID = 1.03906 au 
 Jupiter MOID = 2.4618 au 
 T_jup = 3.492 
[ 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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