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20344 (1998 HF103)
Classification: Main-belt Asteroid          SPK-ID: 2020344
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690109575781765 3.6165e-08  
a 2.39220799953916 7.7264e-09 au
q 1.987898634810873 8.4406e-08 au
i 2.572072145360192 3.6295e-06 deg
node 44.48932490133502 7.2824e-05 deg
peri 112.7883120289562 7.3716e-05 deg
M 43.53282557018994 9.8606e-06 deg
tp 2458837.077748233804
(2019-Dec-19.57774823)
3.6938e-05 TDB
period 1351.440203231764
3.70
6.5474e-06
1.793e-08
d
yr
n .2663824852473048 1.2905e-09 deg/d
Q 2.796517364267447 9.0322e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1547  
   data-arc span      15620 days (42.77 yr)  
   first obs. used      1977-09-10  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:40:46  

Additional Information
 Earth MOID = .998891 au 
 Jupiter MOID = 2.18947 au 
 T_jup = 3.510 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO416924  

20344 (1998 HF103)          Discovered 1998-Apr-25 by Elst, E. W. at La Silla
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HF103 = 1977 RR10 = 1994 GC10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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