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243448 (2009 HD16)
Classification: Main-belt Asteroid          SPK-ID: 2243448
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021319074548363 4.0686e-08  
a 2.769631040378937 2.1606e-08 au
q 2.20980023524102 1.0639e-07 au
i 8.553239195672166 4.3627e-06 deg
node 146.438497188061 2.742e-05 deg
peri 141.3603119374562 3.1225e-05 deg
M 79.20819884720285 1.1208e-05 deg
tp 2458630.076150494275
(2019-May-26.57615049)
5.3119e-05 TDB
period 1683.57048592035
4.61
1.97e-05
5.394e-08
d
yr
n .2138312610078814 2.5021e-09 deg/d
Q 3.329461845516854 2.5973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      456  
   data-arc span      8486 days (23.23 yr)  
   first obs. used      1996-08-08  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5265  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:21:19  

Additional Information
 Earth MOID = 1.20112 au 
 Jupiter MOID = 1.91037 au 
 T_jup = 3.292 
[ 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 15.9   n/a MPO437136  
diameter diameter 3.807 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243448 (2009 HD16)          Discovered 2009-Apr-18 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2009 HD16 = 1996 PE7 = 2001 TV142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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