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362199 (2009 HU18)
Classification: Main-belt Asteroid          SPK-ID: 2362199
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539659340504796 9.5299e-08  
a 2.586181732651065 2.5631e-08 au
q 2.187997846559156 2.6341e-07 au
i 18.39024974672694 6.4047e-06 deg
node 209.0006637835676 1.4176e-05 deg
peri 8.423646946651639 2.2474e-05 deg
M 294.3970232606178 2.2075e-05 deg
tp 2459477.326735765440
(2021-Sep-19.82673577)
9.6182e-05 TDB
period 1519.102178418878
4.16
2.2583e-05
6.183e-08
d
yr
n .2369820839666609 3.523e-09 deg/d
Q 2.984365618742974 2.9577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      9658 days (26.44 yr)  
   first obs. used      1994-11-09  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56999  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:18:05  

Additional Information
 Earth MOID = 1.18202 au 
 Jupiter MOID = 1.98398 au 
 T_jup = 3.334 
[ 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 16.70   n/a MPCxxxxx  
diameter diameter 2.511 km 0.791 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

362199 (2009 HU18)          Discovered 2009-Apr-19 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-04-29

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