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74026 (1998 HL8)
Classification: Main-belt Asteroid          SPK-ID: 2074026
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 .1298299884210342 3.3057e-08  
a 2.355314542684051 1.1346e-08 au
q 2.049524082879488 7.893e-08 au
i 7.631799887134372 4.5199e-06 deg
node 57.470399074916 3.3081e-05 deg
peri 220.9522237815183 3.8917e-05 deg
M 351.4352463393613 2.2361e-05 deg
tp 2459031.911174307488
(2020-Jul-01.41117431)
8.2095e-05 TDB
period 1320.297488842494
3.61
9.5404e-06
2.612e-08
d
yr
n .2726658219395785 1.9703e-09 deg/d
Q 2.661105002488616 1.2819e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      9152 days (25.06 yr)  
   first obs. used      1994-02-12  
   last obs. used      2019-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5677  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:09:37  

Additional Information
 Earth MOID = 1.04018 au 
 Jupiter MOID = 2.44766 au 
 T_jup = 3.532 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456931.5 (2014-Oct-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301327958862856 3.3173e-08  
q 2.048039658686421 7.9176e-08 au
tp 2456390.671348759818
(2013-Apr-08.17134876)
7.6231e-05 TDB
node 57.55476748878228 3.3074e-05 deg
peri 220.5770099185532 3.8843e-05 deg
i 7.633627521603254 4.5195e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      9152 days (25.06 yr)  
   first obs. used      1994-02-12  
   last obs. used      2019-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5677  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:09:37  

Additional Information
 Jupiter MOID = 2.44766 au 
 T_jup = 3.532 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.100439061112837E-15 -2.605636322298549E-15 -1.42948572964381E-13 -2.669055794914658E-15 -4.780218488753692E-14 -5.510310603692299E-16
q -2.605636322298549E-15 6.268761688318639E-15 4.624971980668975E-13 6.069784135704595E-15 1.558264503088525E-13 1.546642862238195E-15
tp -1.42948572964381E-13 4.624971980668975E-13 5.811090302197493E-9 -6.510295776645233E-12 1.571197074103544E-9 1.097340196145941E-13
node -2.669055794914658E-15 6.069784135704595E-15 -6.510295776645233E-12 1.093870487348068E-9 -1.085430172825467E-9 -4.433836707546318E-11
peri -4.780218488753692E-14 1.558264503088525E-13 1.571197074103544E-9 -1.085430172825467E-9 1.508777949388418E-9 4.399217074156587E-11
i -5.510310603692299E-16 1.546642862238195E-15 1.097340196145941E-13 -4.433836707546318E-11 4.399217074156587E-11 2.042622789894474E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO319934  

74026 (1998 HL8)          Discovered 1998-Apr-22 by Zoltowski, F. B. at Woomera
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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