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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 
[ 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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1929-Oct-17 23:43 00:06 Jupiter 1.97627072309037 1.97626981224967 1.97627163393153 4.46302902647147 4.36594036751283 2425902.488517117 6.10251187586677 188.603727106989 38.6931907022983 -85.1358636312059 1679169.35589902 T 12 CATAB v2.0f-lin.ifort 2020-May-21 20:02:30 2020-May-21 20:02
2001-Apr-20 22:45 < 00:01 Jupiter 1.98573468180625 1.9857338082502 1.98573555536264 4.35740914585661 4.25839253991934 2452020.447699810 0.944523190241163 93.6570525494269 33.3006543375069 -76.1539889678512 1826279.47250632 T 12 CATAB v2.0f-lin.ifort 2020-May-21 20:02:30 2020-May-21 20:02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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