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216145 (2006 SY261)
Classification: Main-belt Asteroid          SPK-ID: 2216145
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07963464619496287 5.8817e-08  
a 2.861995414300706 2.4421e-08 au
q 2.634081422071263 1.7618e-07 au
i 2.841374100050519 4.308e-06 deg
node 51.81361044245981 0.00011524 deg
peri 298.918892217731 0.00011917 deg
M 8.452194577987724 2.8411e-05 deg
tp 2459158.978903606466
(2020-Nov-05.47890361)
0.00013958 TDB
period 1768.486818867231
4.84
2.2636e-05
6.197e-08
d
yr
n .20356385818617 2.6055e-09 deg/d
Q 3.089909406530148 2.6366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6935 days (18.99 yr)  
   first obs. used      2001-10-25  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48498  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:53:37  

Additional Information
 Earth MOID = 1.62784 au 
 Jupiter MOID = 2.25753 au 
 T_jup = 3.295 
[ 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 16.78   n/a E2021B55  

216145 (2006 SY261)          Discovered 2006-Sep-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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