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19421 Zachulett (1998 FD56)
Classification: Main-belt Asteroid          SPK-ID: 2019421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06503886869106865 3.0367e-08  
a 2.654389493822307 1.1518e-08 au
q 2.481751004078645 8.3662e-08 au
i 4.400969247288067 3.6988e-06 deg
node 49.633084823305 4.3308e-05 deg
peri 250.7469655016582 5.4862e-05 deg
M 297.7913429531095 3.4635e-05 deg
tp 2459273.456679680085
(2021-Feb-27.95667968)
0.00015191 TDB
period 1579.593730994105
4.32
1.0281e-05
2.815e-08
d
yr
n .2279067034366089 1.4833e-09 deg/d
Q 2.827027983565968 1.2267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1477  
   data-arc span      15281 days (41.84 yr)  
   first obs. used      1978-10-07  
   last obs. used      2020-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:08:53  

Additional Information
 Earth MOID = 1.47048 au 
 Jupiter MOID = 2.29797 au 
 T_jup = 3.382 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO435879  
diameter diameter 4.852 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.157   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19421 Zachulett           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Zachary Frank Hulett (b. 1985) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for his engineering team project. He attends the Mills University Studies High School, Little Rock, Arkansas, 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: 20040830/MPCPages.arcLast Updated: 2004-09-06

Alternate Designations
 1998 FD56 = 1978 TU4 = 2000 UG5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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