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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1689620968671385 3.6179e-08  
a 2.392868694628219 7.7034e-09 au
q 1.988564582456103 8.4355e-08 au
i 2.571683699113271 3.6282e-06 deg
node 44.48385207358963 7.2797e-05 deg
peri 112.8947511596271 7.3688e-05 deg
M 96.70623388605726 9.8956e-06 deg
tp 2458837.314334964562
(2019-Dec-19.81433496)
3.6949e-05 TDB
period 1352.000115802342
3.70
6.5287e-06
1.787e-08
d
yr
n .2662721665422038 1.2858e-09 deg/d
Q 2.797172806800336 9.0049e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1561  
   data-arc span      15628 days (42.79 yr)  
   first obs. used      1977-09-10  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49615  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:17:31  

Additional Information
 Earth MOID = .999302 au 
 Jupiter MOID = 2.18777 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 15.31   n/a E2021B10  

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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