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312441 (2008 HN59)
Classification: Outer Main-belt Asteroid          SPK-ID: 2312441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08545305277310128 5.4691e-08  
a 3.542128103040857 7.9683e-08 au
q 3.239442443322622 1.8893e-07 au
i 6.595620390361798 7.6682e-06 deg
node 63.39507221363404 5.6255e-05 deg
peri 238.4842890155514 7.3691e-05 deg
M 218.8839707457457 4.7736e-05 deg
tp 2459954.984036384649
(2023-Jan-10.48403638)
0.00033076 TDB
period 2434.976769927181
6.67
8.2165e-05
2.25e-07
d
yr
n .1478453529602937 4.9889e-09 deg/d
Q 3.844813762759093 8.6492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      5568 days (15.24 yr)  
   first obs. used      2004-11-04  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:46:12  

Additional Information
 Earth MOID = 2.23072 au 
 Jupiter MOID = 1.35225 au 
 T_jup = 3.102 
[ 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 15.6   n/a MPO427650  

312441 (2008 HN59)          Discovered 2008-Apr-01 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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