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JPL Small-Body Database Browser
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91134 (1998 HC154)
Classification: Main-belt Asteroid          SPK-ID: 2091134
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1481368983278587 5.7328e-08  
a 2.746046542200258 1.5304e-08 au
q 2.339255724774771 1.5858e-07 au
i 13.63701649285658 4.8469e-06 deg
node 88.0775148441903 2.2621e-05 deg
peri 104.302174262339 2.7774e-05 deg
M 331.7471800896112 1.5538e-05 deg
tp 2459130.942636421831
(2020-Oct-08.44263642)
7.2081e-05 TDB
period 1662.111932925734
4.55
1.3895e-05
3.804e-08
d
yr
n .2165919110912764 1.8106e-09 deg/d
Q 3.152837359625746 1.7571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      895  
   data-arc span      7928 days (21.71 yr)  
   first obs. used      1998-04-24  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52525  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:00:32  

Additional Information
 Earth MOID = 1.38125 au 
 Jupiter MOID = 1.96832 au 
 T_jup = 3.291 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO417448  

91134 (1998 HC154)          Discovered 1998-Apr-29 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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