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337074 (1998 HU108)
Classification: Mars-crossing Asteroid          SPK-ID: 2337074
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5137235089900315 5.891e-08  
a 2.738546116349397 1.6116e-08 au
q 1.331690595927362 1.658e-07 au
i 9.277352277278085 5.1733e-06 deg
node 63.03948934899152 4.5254e-05 deg
peri 195.9684574052508 4.7524e-05 deg
M 345.1354415334255 1.6982e-05 deg
tp 2459268.848348902435
(2021-Feb-23.34834890)
7.8661e-05 TDB
period 1655.306860288245
4.53
1.4612e-05
4.001e-08
d
yr
n .2174823343251969 1.9198e-09 deg/d
Q 4.145401636771433 2.4396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      7953 days (21.77 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:04:19  

Additional Information
 Earth MOID = .318655 au 
 Jupiter MOID = .96423 au 
 T_jup = 3.129 
[ 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 16.8   n/a MPO386352  

337074 (1998 HU108)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20121029/Numbers.arcLast Updated: 2012-11-08

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