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120352 Gordonwong (2005 JG177)
Classification: Mars-crossing Asteroid          SPK-ID: 2120352
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2826445620677435 3.0587e-08  
a 2.279752429217667 8.4121e-09 au
q 1.635392802238565 6.7946e-08 au
i 6.167207889451733 3.5807e-06 deg
node 109.3917510140705 5.6487e-05 deg
peri 199.3107979877014 5.7715e-05 deg
M 117.2364152000463 1.4064e-05 deg
tp 2458591.060265296166
(2019-Apr-17.56026530)
4.7713e-05 TDB
period 1257.274066610337
3.44
6.9589e-06
1.905e-08
d
yr
n .2863337513757641 1.5848e-09 deg/d
Q 2.924112056196769 1.079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      7886 days (21.59 yr)  
   first obs. used      1998-06-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5712  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:18:28  

Additional Information
 Earth MOID = .622118 au 
 Jupiter MOID = 2.35387 au 
 T_jup = 3.545 
[ 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 16.2   n/a MPO338103  

120352 Gordonwong           Discovered 2005 May 13 by the Catalina Sky Survey.
Gordon H. Wong (b. 1969) is a software engineer who has shown great patience and dedicated support to the effort required in the design, build, test, and flight of the student-built Regolith X-ray Imaging Spectrometer aboard the OSIRIS-REx Asteroid Sample Return Mission.
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 2016-08-18Last Updated: 2016-08-22

[ show close-approach data ]
Alternate Designations
 2005 JG177 = 1998 MU45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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