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72854 (2001 HK43)
Classification: Main-belt Asteroid          SPK-ID: 2072854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06309195540699118 5.0171e-08  
a 3.078331871291589 2.1416e-08 au
q 2.88411389414014 1.5558e-07 au
i 10.2297876310216 4.7411e-06 deg
node 46.46823540534891 2.2266e-05 deg
peri 338.7447174165024 4.0714e-05 deg
M 64.01462896034883 3.2589e-05 deg
tp 2458849.709101425342
(2020-Jan-01.20910143)
0.00017868 TDB
period 1972.747878693455
5.40
2.0586e-05
5.636e-08
d
yr
n .1824865731136545 1.9043e-09 deg/d
Q 3.272549848443037 2.2767e-08 au
  Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      8145 days (22.30 yr)  
   first obs. used      1998-11-21  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:04:25  

Additional Information
 Earth MOID = 1.89049 au 
 Jupiter MOID = 2.08113 au 
 T_jup = 3.201 
[ 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 14.47   n/a MPCxxxxx  
diameter diameter 4.063 km 0.495 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.245   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72854 (2001 HK43)          Discovered 2001-Apr-16 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 HK43 = 2000 EL197 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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