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100879 (1998 HC91)
Classification: Main-belt Asteroid          SPK-ID: 2100879
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 .1967553696536281 3.1167e-08  
a 2.336002380125608 9.8957e-09 au
q 1.876381368312239 7.0166e-08 au
i 3.756633858261355 3.9607e-06 deg
node 120.1261318272348 5.0936e-05 deg
peri 98.47695865443401 5.1989e-05 deg
M 65.38928659304513 1.1721e-05 deg
tp 2458763.628698296170
(2019-Oct-07.12869830)
4.1713e-05 TDB
period 1304.092352988733
3.57
8.2866e-06
2.269e-08
d
yr
n .2760540686976256 1.7541e-09 deg/d
Q 2.795623391938977 1.1843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      10727 days (29.37 yr)  
   first obs. used      1991-06-06  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58808  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:44  

Additional Information
 Earth MOID = .873264 au 
 Jupiter MOID = 2.18227 au 
 T_jup = 3.539 
[ 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 16.73   n/a E2021B55  

100879 (1998 HC91)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HC91 = 1991 LU5 = 2000 YK14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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