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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229022233202347 3.2817e-08  
a 2.242048468656207 8.0887e-09 au
q 1.966495727066631 7.4004e-08 au
i 2.312049419798017 3.7631e-06 deg
node 249.5650765425474 9.8952e-05 deg
peri 6.392916373409406 0.00010054 deg
M 224.9206476053776 1.8629e-05 deg
tp 2459660.600167503856
(2022-Mar-22.10016750)
6.4533e-05 TDB
period 1226.213017497277
3.36
6.6358e-06
1.817e-08
d
yr
n .2935868359436981 1.5888e-09 deg/d
Q 2.517601210245782 9.0828e-09 au
  Orbit Determination Parameters
   # obs. used (total)      684  
   data-arc span      8830 days (24.18 yr)  
   first obs. used      1996-12-17  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54062  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:02  

Additional Information
 Earth MOID = .949956 au 
 Jupiter MOID = 2.5185 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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