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305995 (2009 KP12)
Classification: Main-belt Asteroid          SPK-ID: 2305995
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 .07583166457235821 8.9584e-08  
a 3.107578816268851 5.2194e-08 au
q 2.871925941841385 3.0404e-07 au
i 10.75375309652043 9.546e-06 deg
node 68.84476208095835 4.6255e-05 deg
peri 274.4340193582098 8.166e-05 deg
M 262.9418676808682 7.1342e-05 deg
tp 2459539.962281165500
(2021-Nov-21.46228117)
0.00039873 TDB
period 2000.928892604484
5.48
5.041e-05
1.38e-07
d
yr
n .1799164384754375 4.5327e-09 deg/d
Q 3.343231690696316 5.6151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7108 days (19.46 yr)  
   first obs. used      2000-11-01  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:02:16  

Additional Information
 Earth MOID = 1.89098 au 
 Jupiter MOID = 1.98424 au 
 T_jup = 3.189 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457215.5 (2015-Jul-12.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07513781066454997 9.0267e-08  
q 2.874955065320646 3.0613e-07 au
tp 2457544.381114676788
(2016-Jun-04.88111468)
0.00039379 TDB
node 68.85805766584484 4.6251e-05 deg
peri 275.430796432386 8.1727e-05 deg
i 10.7532873691186 9.546e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7108 days (19.46 yr)  
   first obs. used      2000-11-01  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:02:16  

Additional Information
 Jupiter MOID = 1.98424 au 
 T_jup = 3.189 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.148087280780222E-15 -2.735705382898488E-14 1.418350049136936E-11 -1.346383420499195E-14 2.673187160475058E-12 1.078799196854256E-14
q -2.735705382898488E-14 9.371322627330587E-14 -4.304320725305487E-11 5.704132030303318E-14 -8.267663432467302E-12 -3.553270034795223E-14
tp 1.418350049136936E-11 -4.304320725305487E-11 1.550689094031648E-7 1.75772170734445E-10 2.66345004536259E-8 1.024594771867407E-11
node -1.346383420499195E-14 5.704132030303318E-14 1.75772170734445E-10 2.139182570845193E-9 -2.071673458243942E-9 -2.275706286380604E-10
peri 2.673187160475058E-12 -8.267663432467302E-12 2.66345004536259E-8 -2.071673458243942E-9 6.679257342150025E-9 2.256915097691406E-10
i 1.078799196854256E-14 -3.553270034795223E-14 1.024594771867407E-11 -2.275706286380604E-10 2.256915097691406E-10 9.112703617548706E-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 15.5   n/a MPO427634  

305995 (2009 KP12)          Discovered 2009-May-25 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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