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JPL Small-Body Database Browser
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20279 Harel (1998 FZ47)
Classification: Main-belt Asteroid          SPK-ID: 2020279
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0843740187141309 5.757e-08  
a 2.301548570679238 7.8745e-09 au
q 2.107357668505267 1.3298e-07 au
i 5.571664912750345 4.9771e-06 deg
node 341.2548652916657 4.2343e-05 deg
peri 210.3748329613171 4.6637e-05 deg
M 5.927019950718723 1.9197e-05 deg
tp 2458579.502744547848
(2019-Apr-06.00274455)
6.8025e-05 TDB
period 1275.34781823334
3.49
6.5452e-06
1.792e-08
d
yr
n .282275936692067 1.4487e-09 deg/d
Q 2.49573947285321 8.5389e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1490  
   data-arc span      15400 days (42.16 yr)  
   first obs. used      1977-03-12  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47772  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:51:01  

Additional Information
 Earth MOID = 1.11019 au 
 Jupiter MOID = 2.47258 au 
 T_jup = 3.580 
[ 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 14.5   n/a MPO272736  
diameter diameter 3.564 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.380 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.139   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20279 Harel           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Matan Harel (b. 1986) is a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors, for his physics project. He attends the Stuyvesant High School, New York, New York.
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 FZ47 = 1977 EB5 = 1986 YH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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