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186862 (2004 HG4)
Classification: Main-belt Asteroid          SPK-ID: 2186862
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05566704158848707 7.3072e-08  
a 2.665252369158885 1.7589e-08 au
q 2.516885654681103 1.9772e-07 au
i 3.801256240802891 5.5092e-06 deg
node 60.03724992710519 9.8824e-05 deg
peri 144.2935944894331 0.00011027 deg
M 302.6480882188346 4.8909e-05 deg
tp 2459453.692788916640
(2021-Aug-27.19278892)
0.00021593 TDB
period 1589.300185106023
4.35
1.5732e-05
4.307e-08
d
yr
n .2265147914621203 2.2422e-09 deg/d
Q 2.813619083636666 1.8568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      9499 days (26.01 yr)  
   first obs. used      1995-04-04  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:31  

Additional Information
 Earth MOID = 1.51245 au 
 Jupiter MOID = 2.14346 au 
 T_jup = 3.378 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.73   n/a MPCxxxxx  

186862 (2004 HG4)          Discovered 2004-Apr-16 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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