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175736 (1998 HJ6)
Classification: Main-belt Asteroid          SPK-ID: 2175736
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 .1225769935883607 4.1852e-08  
a 2.297233381946767 9.7731e-09 au
q 2.015645420416909 9.4678e-08 au
i 5.517625006848779 4.3022e-06 deg
node 178.332373027413 4.0287e-05 deg
peri 40.60527171432372 4.2736e-05 deg
M 173.1445319592828 1.4626e-05 deg
tp 2458588.836754648452
(2019-Apr-15.33675465)
5.0848e-05 TDB
period 1271.762762790221
3.48
8.1156e-06
2.222e-08
d
yr
n .2830716628391976 1.8064e-09 deg/d
Q 2.578821343476624 1.0971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      439  
   data-arc span      10304 days (28.21 yr)  
   first obs. used      1992-09-26  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60653  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:36  

Additional Information
 Earth MOID = 1.01116 au 
 Jupiter MOID = 2.39069 au 
 T_jup = 3.578 
[ 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 17.10   n/a E2021B55  

175736 (1998 HJ6)          Discovered 1998-Apr-21 by ODAS at Caussols
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Alternate Designations
 1998 HJ6 = 2005 GW152 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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