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362198 (2009 HC18)
Classification: Main-belt Asteroid          SPK-ID: 2362198
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1504242198401135 6.4987e-08  
a 2.449740202084842 2.4722e-08 au
q 2.081239943375268 1.6837e-07 au
i 11.57155797884246 6.8666e-06 deg
node 212.3923940168922 3.2977e-05 deg
peri 54.73157320556064 4.0537e-05 deg
M 328.9522785565077 2.8845e-05 deg
tp 2459321.282969701237
(2021-Apr-16.78296970)
0.00011329 TDB
period 1400.485029846179
3.83
2.12e-05
5.804e-08
d
yr
n .2570538008817846 3.8911e-09 deg/d
Q 2.818240460794417 2.8441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6410 days (17.55 yr)  
   first obs. used      2002-09-03  
   last obs. used      2020-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53288  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 09:38:36  

Additional Information
 Earth MOID = 1.08813 au 
 Jupiter MOID = 2.27772 au 
 T_jup = 3.453 
[ 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 17.00   n/a E2021B25  

362198 (2009 HC18)          Discovered 2009-Apr-18 by CSS at Catalina
Reference: Last Updated: 2013-04-29

Alternate Designations
 2009 HC18 = 2010 NU103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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