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9984 Gregbryant (1996 HT)
Classification: Main-belt Asteroid          SPK-ID: 2009984
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0441312132572668 5.4546e-08  
a 2.490733031787348 1.9597e-08 AU
q 2.380813961194622 1.3842e-07 AU
i 3.818141118159295 5.9227e-06 deg
node 288.0744145398889 8.2781e-05 deg
peri 290.9231636384687 0.00012271 deg
M 268.7463224264849 9.4786e-05 deg
tp 2457364.446102114451
(2015-Dec-07.94610211)
0.00037916 JED
period 1435.784291056661
3.93
1.6945e-05
4.639e-08
d
yr
n .2507340428798389 2.9591e-09 deg/d
Q 2.600652102380074 2.0462e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1151  
   data-arc span      11639 days (31.87 yr)  
   first obs. used      1982-11-13  
   last obs. used      2014-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54295  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:16:45  

Additional Information
 Earth MOID = 1.37692 AU 
 T_jup = 3.468 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO267747  

9984 Gregbryant           Discovered 1996 Apr. 18 by R. H. McNaught and J. B. Child at Macquarie.
Editor of the journal of the Astronomical Society of New South Wales, Gregory Bryant (b. 1970) has contributed over 240 original articles. He also cofounded the South Pacific Star Party, and his enthusiastic promotion of this annual event has attracted participants from around the world.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1996 HT = 1972 EE = 1982 VX11 = 1984 GZ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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