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181782 (1998 AO11)
Classification: Main-belt Asteroid          SPK-ID: 2181782
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2380531025088853 3.7375e-08  
a 2.297723051455573 1.1064e-08 au
q 1.750742950350391 8.5212e-08 au
i 4.01417135739549 4.2717e-06 deg
node 103.4874914302831 5.1908e-05 deg
peri 169.3743776927807 5.2454e-05 deg
M 57.57427727385199 8.3498e-06 deg
tp 2458997.043793372776
(2020-May-27.54379337)
2.8936e-05 TDB
period 1272.169410610482
3.48
9.1888e-06
2.516e-08
d
yr
n .2829811792340181 2.044e-09 deg/d
Q 2.844703152560755 1.3698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      8324 days (22.79 yr)  
   first obs. used      1998-01-02  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:01  

Additional Information
 Earth MOID = .732802 au 
 Jupiter MOID = 2.27378 au 
 T_jup = 3.552 
[ 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 16.59   n/a E2021B55  

181782 (1998 AO11)          Discovered 1998-Jan-02 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1998 AO11 = 2002 CX216 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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