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(2009 HU44)
Classification: Aten [NEO]          SPK-ID: 3458579
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6439442421941292 0.00040676  
a .8302130115147669 8.0331e-05 au
q .2956021229551845 0.0003091 au
i 6.635766893088585 0.0086573 deg
node 212.8715350149324 0.0028932 deg
peri 213.6358324110604 0.011397 deg
M 228.6114397080616 0.91898 deg
tp 2459301.341148497506
(2021-Mar-27.84114850)
0.71996 TDB
period 276.301174002053
0.76
0.040102
0.0001098
d
yr
n 1.302926059942565 0.00018911 deg/d
Q 1.364823900074349 0.00013206 au
  Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      21 days  
   first obs. used      2009-04-22  
   last obs. used      2009-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .52494  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:00:43  

Additional Information
 Earth MOID = .00604897 au 
 Jupiter MOID = 3.96594 au 
 T_jup = 6.875 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.6   n/a MPO158645  

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