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16588 Johngee (1992 ST)
Classification: Mars-crossing Asteroid          SPK-ID: 2016588
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3856210426262752 6.8592e-08  
a 2.562312492993508 1.9453e-08 au
q 1.574230877911021 1.6914e-07 au
i 8.102069631258397 7.3447e-06 deg
node 30.44042948752103 3.8237e-05 deg
peri 16.71592752176525 4.0727e-05 deg
M 308.4057893440286 2.5569e-05 deg
tp 2459415.206424519336
(2021-Jul-19.70642452)
0.00010855 TDB
period 1498.119882913938
4.10
1.706e-05
4.671e-08
d
yr
n .2403011962565889 2.7365e-09 deg/d
Q 3.550394108075995 2.6954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      522  
   data-arc span      11163 days (30.56 yr)  
   first obs. used      1988-11-09  
   last obs. used      2019-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:35:52  

Additional Information
 Earth MOID = .584756 au 
 Jupiter MOID = 1.88049 au 
 T_jup = 3.313 
[ 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 15.2   n/a MPO473988  

16588 Johngee           Discovered 1992 Sept. 23 by E. F. Helin at Palomar.
For more than half a century John Gee has provided leadership and service to the Caltech Class of 1953 and the Caltech community, including a stint as president of the Alumni Association.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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