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277139 (2005 KN9)
Classification: Main-belt Asteroid          SPK-ID: 2277139
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1381294441682784 5.4537e-08  
a 2.614550414515806 2.4342e-08 au
q 2.253404019008796 1.3914e-07 au
i 14.20028091445609 6.1619e-06 deg
node 66.84673682383411 2.2032e-05 deg
peri 216.784632890219 3.1559e-05 deg
M 171.1323407135491 2.6355e-05 deg
tp 2458266.453542100842
(2018-May-27.95354210)
0.00010773 TDB
period 1544.1658995714
4.23
2.1565e-05
5.904e-08
d
yr
n .2331355718319656 3.2558e-09 deg/d
Q 2.975696810022816 2.7705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      6180 days (16.92 yr)  
   first obs. used      2003-01-02  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52253  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:51:51  

Additional Information
 Earth MOID = 1.25253 au 
 Jupiter MOID = 2.16341 au 
 T_jup = 3.351 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457513.5 (2016-May-05.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1393007114151042 5.4381e-08  
q 2.249030001223328 1.388e-07 au
tp 2458266.344262164406
(2018-May-27.84426216)
0.00010706 TDB
node 66.88703061935928 2.2053e-05 deg
peri 216.8158978802003 3.1494e-05 deg
i 14.19689415609295 6.1603e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      6180 days (16.92 yr)  
   first obs. used      2003-01-02  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52253  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:51:51  

Additional Information
 Jupiter MOID = 2.16341 au 
 T_jup = 3.351 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.95734061716512E-15 -7.467006605907415E-15 7.84504246643529E-13 1.124660355284837E-14 3.625461630468512E-14 -6.636929229605226E-15
q -7.467006605907415E-15 1.926500828438577E-14 -9.718772634606064E-13 -2.875980906806311E-14 8.156219945820113E-14 1.877211799605685E-14
tp 7.84504246643529E-13 -9.718772634606064E-13 1.146156282020294E-8 4.536380415965076E-12 2.413373381361397E-9 -2.708138567053975E-12
node 1.124660355284837E-14 -2.875980906806311E-14 4.536380415965076E-12 4.86354326009097E-10 -4.702222910490836E-10 -1.465449380849968E-11
peri 3.625461630468512E-14 8.156219945820113E-14 2.413373381361397E-9 -4.702222910490836E-10 9.918468509261603E-10 1.347484957360127E-11
i -6.636929229605226E-15 1.877211799605685E-14 -2.708138567053975E-12 -1.465449380849968E-11 1.347484957360127E-11 3.794918301461255E-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 16.2   n/a MPO503246  

277139 (2005 KN9)          Discovered 2005-May-28 by Broughton, J. at Reedy Creek
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2005 KN9 = 2006 TL127 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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