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JPL Small-Body Database Browser
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441445 (2008 HY54)
Classification: Main-belt Asteroid          SPK-ID: 2441445
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836743250268552 7.5106e-08  
a 2.20177248766894 2.8972e-08 au
q 1.797363412133647 1.7289e-07 au
i 4.085486745163243 8.233e-06 deg
node 97.13224041786425 0.00011248 deg
peri 81.02884503481572 0.00011818 deg
M 167.6543877779523 5.0882e-05 deg
tp 2458044.762745502600
(2017-Oct-18.26274550)
0.00015927 TDB
period 1193.320462832373
3.27
2.3553e-05
6.448e-08
d
yr
n .3016792313655059 5.9544e-09 deg/d
Q 2.606181563204232 3.4293e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      6855 days (18.77 yr)  
   first obs. used      2001-01-21  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56281  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:56:48  

Additional Information
 Earth MOID = .807189 au 
 Jupiter MOID = 2.36161 au 
 T_jup = 3.639 
[ 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 18.3   n/a MPO342799  

441445 (2008 HY54)          Discovered 2008-Apr-29 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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