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101180 (1998 SH9)
Classification: Main-belt Asteroid          SPK-ID: 2101180
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09119241445333116 4.1488e-08  
a 2.699634116399724 1.3858e-08 au
q 2.453447963184648 1.1504e-07 au
i 4.809206762995698 5.0251e-06 deg
node 186.2462057305367 4.4196e-05 deg
peri 234.6540033394847 5.2085e-05 deg
M 277.6252758732006 2.8365e-05 deg
tp 2459371.221062413234
(2021-Jun-05.72106241)
0.00012782 TDB
period 1620.15210227994
4.44
1.2475e-05
3.415e-08
d
yr
n .2222013596707336 1.711e-09 deg/d
Q 2.9458202696148 1.5122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      677  
   data-arc span      9963 days (27.28 yr)  
   first obs. used      1993-07-22  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52657  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:59  

Additional Information
 Earth MOID = 1.46957 au 
 Jupiter MOID = 2.33115 au 
 T_jup = 3.357 
[ 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 15.4   n/a MPO436472  

101180 (1998 SH9)          Discovered 1998-Sep-17 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SH9 = 2000 CM25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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