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100888 (1998 HH117)
Classification: Main-belt Asteroid          SPK-ID: 2100888
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028048477960344 3.4771e-08  
a 2.358124671654721 1.4305e-08 au
q 2.115698023701184 8.2116e-08 au
i 7.830420240968682 4.3478e-06 deg
node 71.59167303396497 3.8291e-05 deg
peri 201.4823552747471 4.8584e-05 deg
M 43.31539518883216 3.1775e-05 deg
tp 2459041.356703334842
(2020-Jul-10.85670333)		 0.00011638 TDB
period 1322.661066572196
3.62		 1.2036e-05
3.295e-08		 d
yr
n .2721785717432318 2.4767e-09 deg/d
Q 2.600551319608258 1.5776e-08 au
   Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      10072 days (27.58 yr)  
   first obs. used      1992-11-19  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:40  

Additional Information
 Earth MOID = 1.09986 au 
 Jupiter MOID = 2.47335 au 
 T_jup = 3.533 
[ 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 16.2   n/a MPO366383  

100888 (1998 HH117)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HH117 = 2002 LS44 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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