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74034 (1998 HX31)
Classification: Main-belt Asteroid          SPK-ID: 2074034
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156197645323229 3.377e-08  
a 2.363815698753933 8.0782e-09 au
q 1.854130314390802 7.9621e-08 au
i 4.496648694975342 4.53e-06 deg
node 21.74739794548422 4.5284e-05 deg
peri 215.4549656014584 4.6298e-05 deg
M 5.764664669956141 8.7472e-06 deg
tp 2458979.243566692565
(2020-May-09.74356669)
3.2253e-05 TDB
period 1327.452059884495
3.63
6.8047e-06
1.863e-08
d
yr
n .2711962344096439 1.3902e-09 deg/d
Q 2.873501083117065 9.82e-09 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      8125 days (22.25 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:48:13  

Additional Information
 Earth MOID = .844775 au 
 Jupiter MOID = 2.1414 au 
 T_jup = 3.514 
[ 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 16.0   n/a MPO422173  

74034 (1998 HX31)          Discovered 1998-Apr-20 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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