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243452 (2009 HD73)
Classification: Main-belt Asteroid          SPK-ID: 2243452
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05449464032476497 1.1077e-07  
a 3.052999991324994 4.5839e-08 au
q 2.886627854886228 3.2644e-07 au
i 8.11169408574572 1.2015e-05 deg
node 164.7156944357477 5.6668e-05 deg
peri 172.1629223606335 9.7936e-05 deg
M 195.2818392757442 7.797e-05 deg
tp 2459492.012865540765
(2021-Oct-04.51286554)
0.00042281 TDB
period 1948.44715472478
5.33
4.3882e-05
1.201e-07
d
yr
n .1847625167185252 4.1612e-09 deg/d
Q 3.219372127763761 4.8337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      7652 days (20.95 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:11:51  

Additional Information
 Earth MOID = 1.87665 au 
 Jupiter MOID = 2.04009 au 
 T_jup = 3.219 
[ 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 15.8   n/a MPO433595  
diameter diameter 6.027 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.019   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243452 (2009 HD73)          Discovered 2009-Apr-19 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2009 HD73 = 2004 HS74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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