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JPL Small-Body Database Browser
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58241 (1993 HH4)
Classification: Main-belt Asteroid          SPK-ID: 2058241
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07885806250721192 5.1648e-08  
a 2.700143893621181 2.1489e-08 au
q 2.487215777679535 1.364e-07 au
i 27.68921003349848 9.1781e-06 deg
node 30.01970336391466 1.2325e-05 deg
peri 257.8795922306162 7.7272e-05 deg
M 231.1822304243135 8.2801e-05 deg
tp 2459180.398605743755
(2020-Nov-26.89860574)		 0.00037607 TDB
period 1620.611028706669
4.44		 1.9347e-05
5.297e-08		 d
yr
n .2221384364435053 2.6519e-09 deg/d
Q 2.913072009562827 2.3184e-08 au
   Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      9443 days (25.85 yr)  
   first obs. used      1993-04-20  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60985  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:33:48  

Additional Information
 Earth MOID = 1.58211 au 
 Jupiter MOID = 2.2352 au 
 T_jup = 3.199 
[ 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 15.3   n/a MPO244663  
diameter diameter 4.842 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58241 (1993 HH4)          Discovered 1993-Apr-21 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 HH4 = 1999 VN180 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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