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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2025162599608839 4.0652e-08  
a 2.77064944743439 2.1726e-08 au
q 2.209547883677287 1.0641e-07 au
i 8.552012313945403 4.3672e-06 deg
node 146.4444088186696 2.745e-05 deg
peri 141.3541943696116 3.124e-05 deg
M 353.673386432049 1.1356e-05 deg
tp 2458630.103264506793
(2019-May-26.60326451)
5.3066e-05 TDB
period 1684.499157089694
4.61
1.9813e-05
5.425e-08
d
yr
n .2137133749725179 2.5137e-09 deg/d
Q 3.331751011191492 2.6125e-08 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   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      .52875  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:27:01  

Additional Information
 Earth MOID = 1.2002 au 
 Jupiter MOID = 1.90656 au 
 T_jup = 3.291 
[ 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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