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175238 Nguyenhien (2005 GK187)
Classification: Main-belt Asteroid          SPK-ID: 2175238
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .176368430918122 3.683e-08  
a 2.434969844516303 1.6618e-08 au
q 2.005518033706019 9.5806e-08 au
i 1.746660310417854 4.5712e-06 deg
node 145.6844971825034 0.00015484 deg
peri 138.59191301849 0.00015562 deg
M 302.5291203542932 1.9383e-05 deg
tp 2459422.056324220167
(2021-Jul-26.55632422)
7.6128e-05 TDB
period 1387.838105331984
3.80
1.4207e-05
3.89e-08
d
yr
n .2593962499061694 2.6554e-09 deg/d
Q 2.864421655326586 1.9548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      6300 days (17.25 yr)  
   first obs. used      2003-11-19  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6324  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:35  

Additional Information
 Earth MOID = .987568 au 
 Jupiter MOID = 2.28489 au 
 T_jup = 3.483 
[ 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 16.98   n/a E2021B55  

175238 Nguyenhien           Discovered 2005 Apr. 12 by M. W. Buie at Kitt Peak.
Hien Nguyen (b. 1968) is a systems engineer at the Johns Hopkins University Applied Physics Laboratory. He served as the Senior Ground Systems Hardware Engineer for the New Horizons Mission to Pluto.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17

[ show close-approach data ]
Alternate Designations
 2005 GK187 = 2006 OZ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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