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186381 (2002 HG15)
Classification: Main-belt Asteroid          SPK-ID: 2186381
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 .05099449419516356 4.5716e-08  
a 3.078907952584637 2.8382e-08 au
q 2.921900598869116 1.304e-07 au
i 2.975909593621347 4.0746e-06 deg
node 111.569025374097 0.00010806 deg
peri 137.2162291712843 0.00012313 deg
M 113.9176810790664 5.9501e-05 deg
tp 2458576.072358070301
(2019-Apr-02.57235807)
0.00032414 TDB
period 1973.301676836888
5.40
2.7285e-05
7.47e-08
d
yr
n .1824353590866367 2.5225e-09 deg/d
Q 3.235915306300157 2.9829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      7268 days (19.90 yr)  
   first obs. used      2000-12-23  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49813  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:51:02  

Additional Information
 Earth MOID = 1.90709 au 
 Jupiter MOID = 1.76736 au 
 T_jup = 3.224 
[ 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 15.64   n/a E2021B55  

186381 (2002 HG15)          Discovered 2002-Apr-17 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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