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216564 (2001 XX227)
Classification: Main-belt Asteroid          SPK-ID: 2216564
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05207241901602681 5.76e-08  
a 2.765307186421497 1.6629e-08 au
q 2.621310951902127 1.5823e-07 au
i 5.099126952257378 4.4653e-06 deg
node 295.7494698573416 5.9669e-05 deg
peri 69.07746075863301 7.2949e-05 deg
M 112.3245366001658 4.1233e-05 deg
tp 2458676.434421939477
(2019-Jul-11.93442194)
0.00019172 TDB
period 1679.629525411368
4.60
1.5151e-05
4.148e-08
d
yr
n .2143329791203987 1.9334e-09 deg/d
Q 2.909303420940867 1.7495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      10766 days (29.48 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59825  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:21  

Additional Information
 Earth MOID = 1.62195 au 
 Jupiter MOID = 2.36352 au 
 T_jup = 3.332 
[ 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 16.15   n/a MPCxxxxx  

216564 (2001 XX227)          Discovered 2001-Dec-15 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 2001 XX227 = 2005 QA172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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