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100845 (1998 HY23)
Classification: Main-belt Asteroid          SPK-ID: 2100845
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230626393777274 3.7033e-08  
a 2.241750867444328 8.3684e-09 au
q 1.965875088869319 8.2527e-08 au
i 2.312365955958244 4.1429e-06 deg
node 249.567355496316 0.00010844 deg
peri 6.367810378445516 0.00011019 deg
M 166.2308442245771 1.9556e-05 deg
tp 2458434.405994154786
(2018-Nov-11.90599415)
6.5765e-05 TDB
period 1225.968881135878
3.36
6.8648e-06
1.879e-08
d
yr
n .2936453000882493 1.6443e-09 deg/d
Q 2.517626646019337 9.3982e-09 au
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      8707 days (23.84 yr)  
   first obs. used      1996-12-17  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:56  

Additional Information
 Earth MOID = .950987 au 
 Jupiter MOID = 2.51955 au 
 T_jup = 3.623 
[ 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 16.3   n/a MPO248020  

100845 (1998 HY23)          Discovered 1998-Apr-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HY23 = 1999 TN202 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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