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100180 (1994 AR9)
Classification: Main-belt Asteroid          SPK-ID: 2100180
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05118539626315569 4.4373e-08  
a 2.987792118651068 2.0672e-08 au
q 2.83486079510598 1.365e-07 au
i 2.185389230933238 4.2648e-06 deg
node 45.29568032164224 0.00015645 deg
peri 58.71843863883487 0.000169 deg
M 92.64137143981803 6.0848e-05 deg
tp 2458715.070161956536
(2019-Aug-19.57016196)		 0.00031966 TDB
period 1886.357455417982
5.16		 1.9577e-05
5.36e-08		 d
yr
n .1908439988221801 1.9807e-09 deg/d
Q 3.140723442196156 2.173e-08 au
   Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      9601 days (26.29 yr)  
   first obs. used      1994-01-07  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58389  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:50:27  

Additional Information
 Earth MOID = 1.85237 au 
 Jupiter MOID = 1.92294 au 
 T_jup = 3.254 
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[ 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 15.65   n/a E2021B55  

100180 (1994 AR9)          Discovered 1994-Jan-08 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1994 AR9 = 2000 GN43 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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