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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07914777685815839 4.782e-08  
a 2.700394624558044 1.638e-08 au
q 2.486664393384554 1.3019e-07 au
i 27.68794675254212 8.587e-06 deg
node 30.01636954878891 1.0912e-05 deg
peri 257.8583539898801 5.5374e-05 deg
M 320.0881069851278 5.6075e-05 deg
tp 2459180.196287650524
(2020-Nov-26.69628765)
0.00025256 TDB
period 1620.836764873148
4.44
1.4747e-05
4.038e-08
d
yr
n .2221074989178042 2.0209e-09 deg/d
Q 2.914124855731534 1.7676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      9896 days (27.09 yr)  
   first obs. used      1993-04-20  
   last obs. used      2020-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59928  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:51:48  

Additional Information
 Earth MOID = 1.58174 au 
 Jupiter MOID = 2.23405 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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