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74040 (1998 HU83)
Classification: Main-belt Asteroid          SPK-ID: 2074040
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178573505721461 3.8917e-08  
a 2.402270953502365 1.1357e-08 au
q 1.973289007642611 9.6049e-08 au
i 3.948070405426316 4.5125e-06 deg
node 145.991330525543 5.7479e-05 deg
peri 136.9772648204236 5.8706e-05 deg
M 284.5846843476587 1.3867e-05 deg
tp 2459285.397385973241
(2021-Mar-11.89738597)
5.3419e-05 TDB
period 1359.97652550013
3.72
9.6445e-06
2.641e-08
d
yr
n .2647104514304837 1.8772e-09 deg/d
Q 2.83125289936212 1.3385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      9031 days (24.73 yr)  
   first obs. used      1995-07-28  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5572  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:02:49  

Additional Information
 Earth MOID = .9591 au 
 Jupiter MOID = 2.32175 au 
 T_jup = 3.500 
[ 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 15.5   n/a MPO432293  
diameter diameter 4.421 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74040 (1998 HU83)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20040415/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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