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266841 (2009 UA27)
Classification: Main-belt Asteroid          SPK-ID: 2266841
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1019393727404455 7.3436e-08  
a 2.76788640582553 2.8431e-08 au
q 2.485729801798869 2.0337e-07 au
i 2.664283931298073 7.235e-06 deg
node 295.4369590911331 0.00015568 deg
peri 47.55343935254726 0.0001587 deg
M 149.639069465161 3.1634e-05 deg
tp 2458301.361338088286
(2018-Jul-01.86133809)
0.00014737 TDB
period 1681.979974800736
4.61
2.5915e-05
7.095e-08
d
yr
n .2140334637709638 3.2977e-09 deg/d
Q 3.05004300985219 3.1329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      8925 days (24.44 yr)  
   first obs. used      1995-08-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58901  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:10  

Additional Information
 Earth MOID = 1.47855 au 
 Jupiter MOID = 2.30539 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457174.5 (2015-Jun-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1018043329235645 7.3735e-08  
q 2.48587991871276 2.0386e-07 au
tp 2456610.886407285671
(2013-Nov-14.38640729)
0.00014896 TDB
node 295.722300372445 0.00015501 deg
peri 45.68898022623895 0.00015806 deg
i 2.670830335618504 7.2509e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      8925 days (24.44 yr)  
   first obs. used      1995-08-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58901  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:10  

Additional Information
 Jupiter MOID = 2.30539 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.436876902331512E-15 -1.491545965429207E-14 6.567912547897287E-13 -8.387905895701302E-15 5.503595740734233E-14 -1.305599370126107E-15
q -1.491545965429207E-14 4.155940380204138E-14 -2.349927932725608E-12 2.347529577336194E-14 -2.164387567113523E-13 4.230274323146252E-15
tp 6.567912547897287E-13 -2.349927932725608E-12 2.21876911864895E-8 9.9381110284236E-12 4.654526127686494E-9 6.770930836387603E-14
node -8.387905895701302E-15 2.347529577336194E-14 9.9381110284236E-12 2.402885900989995E-8 -2.399951879759514E-8 2.609042442657934E-10
peri 5.503595740734233E-14 -2.164387567113523E-13 4.654526127686494E-9 -2.399951879759514E-8 2.498155690410647E-8 -2.605693977270159E-10
i -1.305599370126107E-15 4.230274323146252E-15 6.770930836387603E-14 2.609042442657934E-10 -2.605693977270159E-10 5.257586402429422E-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 16.6   n/a MPO454983  

266841 (2009 UA27)          Discovered 2009-Oct-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 UA27 = 2005 XG36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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