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91135 (1998 HC155)
Classification: Main-belt Asteroid          SPK-ID: 2091135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08870623015040342 5.3501e-08  
a 2.693358167083737 1.6019e-08 au
q 2.454440517636938 1.5074e-07 au
i 2.27083693062927 5.215e-06 deg
node 216.6654795234946 0.00011843 deg
peri 115.9957120982138 0.00012108 deg
M 321.1981456285665 2.5384e-05 deg
tp 2459570.516156885453
(2021-Dec-22.01615689)
0.00011387 TDB
period 1614.505736738291
4.42
1.4403e-05
3.943e-08
d
yr
n .2229784582415241 1.9892e-09 deg/d
Q 2.932275816530535 1.7439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      8513 days (23.31 yr)  
   first obs. used      1998-03-29  
   last obs. used      2021-07-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54161  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:10  

Additional Information
 Earth MOID = 1.44431 au 
 Jupiter MOID = 2.34973 au 
 T_jup = 3.364 
[ 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 15.20   n/a MPO637239  

91135 (1998 HC155)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 HC155 = 2002 EU41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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