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181552 (2006 UK266)
Classification: Main-belt Asteroid          SPK-ID: 2181552
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514666021975715 5.5353e-08  
a 2.997968550095017 3.0511e-08 au
q 2.543876440316945 1.8358e-07 au
i 1.58152772439142 4.0843e-06 deg
node 128.0334485049201 0.00025616 deg
peri 190.4125258072222 0.00025717 deg
M 325.9920653373761 2.2991e-05 deg
tp 2459379.608745727109
(2021-Jun-14.10874573)
0.0001213 TDB
period 1896.003068149397
5.19
2.8944e-05
7.924e-08
d
yr
n .1898731104646258 2.8986e-09 deg/d
Q 3.452060659873089 3.5133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      6863 days (18.79 yr)  
   first obs. used      2001-11-21  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60554  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:04  

Additional Information
 Earth MOID = 1.52872 au 
 Jupiter MOID = 1.84551 au 
 T_jup = 3.236 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457638.5 (2016-Sep-07.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1501858235803275 5.5512e-08  
q 2.548171490051821 1.8401e-07 au
tp 2457485.915656355306
(2016-Apr-07.41565636)
0.00012298 TDB
node 128.0412312350755 0.00025627 deg
peri 190.7324546632387 0.00025728 deg
i 1.581142268822517 4.0823e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      6863 days (18.79 yr)  
   first obs. used      2001-11-21  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60554  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:04  

Additional Information
 Jupiter MOID = 1.84551 au 
 T_jup = 3.236 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.081607753357913E-15 -1.015271158916827E-14 1.966463286963107E-12 -6.07923006318878E-15 5.264727150877848E-13 -2.484709832543983E-16
q -1.015271158916827E-14 3.386083557878467E-14 -6.351331975801697E-12 2.762817175347493E-14 -1.711111841979421E-12 1.066774510456566E-15
tp 1.966463286963107E-12 -6.351331975801697E-12 1.512324519186615E-8 8.482632219430347E-11 2.892217866139569E-9 2.52242891032968E-12
node -6.07923006318878E-15 2.762817175347493E-14 8.482632219430347E-11 6.567242693763891E-8 -6.563076775423731E-8 1.385796572966489E-10
peri 5.264727150877848E-13 -1.711111841979421E-12 2.892217866139569E-9 -6.563076775423731E-8 6.619421051229587E-8 -1.380504765711714E-10
i -2.484709832543983E-16 1.066774510456566E-15 2.52242891032968E-12 1.385796572966489E-10 -1.380504765711714E-10 1.666522628732947E-11

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 15.90   n/a E2021B55  

181552 (2006 UK266)          Discovered 2006-Oct-27 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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