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JPL Small-Body Database Browser
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20789 Hughgrant (2000 SU44)
Classification: Main-belt Asteroid          SPK-ID: 2020789
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2417888706465125 7.3066e-08  
a 2.553114438961718 1.3193e-08 au
q 1.93579978213386 1.9108e-07 au
i 9.767683952549897 6.7383e-06 deg
node 66.41896530251933 2.0762e-05 deg
peri 14.94986097991303 2.2739e-05 deg
M 202.6296948863697 8.7302e-06 deg
tp 2459251.864575228203
(2021-Feb-06.36457523)
3.8881e-05 TDB
period 1490.060319275844
4.08
1.1549e-05
3.162e-08
d
yr
n .2416009575873793 1.8726e-09 deg/d
Q 3.170429095789576 1.6383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1328  
   data-arc span      24569 days (67.27 yr)  
   first obs. used      1952-01-31  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50443  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:55:45  

Additional Information
 Earth MOID = .953008 au 
 Jupiter MOID = 2.11139 au 
 T_jup = 3.378 
[ 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 13.3   n/a MPO302192  
diameter diameter 5.254 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.443   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20789 Hughgrant           Discovered 2000 Sept. 28 by C. W. Juels at Fountain Hills.
Hugh M. Grant (b. 1933) is a retired educator and businessman from Vancouver and a member of the Royal Astronomical Society of Canada. He recently completed construction of a roll-off roof observatory at his winter home in Fountain Hills, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2000 SU44 = 1952 BA2 = 1989 FD1 = 1994 LE7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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