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72831 (2001 HJ14)
Classification: Main-belt Asteroid          SPK-ID: 2072831
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022990861846587 4.7501e-08  
a 3.094463736369549 2.5436e-08 au
q 2.777902923907379 1.48e-07 au
i 15.82947498050477 6.7829e-06 deg
node 223.7883863775802 1.5347e-05 deg
peri 35.20790862476722 3.5971e-05 deg
M 181.7724299526477 3.5282e-05 deg
tp 2460184.848555912889
(2023-Aug-28.34855591)
0.00020123 TDB
period 1988.275327069153
5.44
2.4515e-05
6.712e-08
d
yr
n .1810614431003695 2.2324e-09 deg/d
Q 3.411024548831718 2.8038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      7673 days (21.01 yr)  
   first obs. used      2000-02-08  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55385  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:04:17  

Additional Information
 Earth MOID = 1.77731 au 
 Jupiter MOID = 1.63705 au 
 T_jup = 3.158 
[ 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 14.16   n/a E2021B10  
diameter diameter 8.239 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72831 (2001 HJ14)          Discovered 2001-Apr-23 by Comba, P. G. at Prescott
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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