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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456881.5 (2014-Aug-12.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .514871184102764 5.8356e-08  
q 1.327758983433976 1.6414e-07 au
tp 2457611.242009445557
(2016-Aug-10.74200945)
6.4202e-05 TDB
node 63.18304774672814 4.5162e-05 deg
peri 195.8564937017582 4.7403e-05 deg
i 9.29240741791811 5.1791e-06 deg
  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
 Jupiter MOID = .96423 au 
 T_jup = 3.129 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.40541311045751E-15 -9.571019189764569E-15 -2.733417076344614E-12 6.469835828756375E-14 -4.856409962457827E-13 -4.94835375684321E-14
q -9.571019189764569E-15 2.694238968550535E-14 7.949675767232771E-12 -1.876215409455613E-13 1.447109861966642E-12 1.442422925505859E-13
tp -2.733417076344614E-12 7.949675767232771E-12 4.121835827233112E-9 -9.059546729257017E-11 9.75382029544357E-10 7.486822795927078E-11
node 6.469835828756375E-14 -1.876215409455613E-13 -9.059546729257017E-11 2.039586769737375E-9 -2.031051894776071E-9 -1.09005009319619E-10
peri -4.856409962457827E-13 1.447109861966642E-12 9.75382029544357E-10 -2.031051894776071E-9 2.247033661083706E-9 1.236257598291411E-10
i -4.94835375684321E-14 1.442422925505859E-13 7.486822795927078E-11 -1.09005009319619E-10 1.236257598291411E-10 2.68226935664097E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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