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266606 (2008 KR38)
Classification: Main-belt Asteroid          SPK-ID: 2266606
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1042743692969174 4.6091e-08  
a 2.38966759262308 1.7372e-08 au
q 2.140486511573025 1.1451e-07 au
i 3.744846862102603 5.5344e-06 deg
node 215.6357609344702 7.9451e-05 deg
peri 237.8143546994271 8.5433e-05 deg
M 227.3046576430067 3.118e-05 deg
tp 2459497.845103215626
(2021-Oct-10.34510322)
0.00011906 TDB
period 1349.288030592201
3.69
1.4713e-05
4.028e-08
d
yr
n .2668073768074533 2.9094e-09 deg/d
Q 2.638848673673134 1.9183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      6496 days (17.79 yr)  
   first obs. used      2002-10-15  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59274  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 18:07:54  

Additional Information
 Earth MOID = 1.1599 au 
 Jupiter MOID = 2.51276 au 
 T_jup = 3.523 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457366.5 (2015-Dec-10.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1050670983874662 4.63e-08  
q 2.137581381901762 1.1525e-07 au
tp 2456797.240347877892
(2014-May-19.74034788)
0.00010815 TDB
node 215.7299345961639 7.9323e-05 deg
peri 237.0489339190844 8.5222e-05 deg
i 3.748164439188855 5.5399e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      6496 days (17.79 yr)  
   first obs. used      2002-10-15  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59274  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 18:07:54  

Additional Information
 Jupiter MOID = 2.51276 au 
 T_jup = 3.523 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.143727379809728E-15 -5.290499078148422E-15 -9.545377721361925E-13 2.69300485706291E-14 -3.584924899937195E-13 -2.041175288308986E-15
q -5.290499078148422E-15 1.32821679065889E-14 2.645623093943934E-12 -6.885607909544009E-14 9.891286213269433E-13 5.518383297216374E-15
tp -9.545377721361925E-13 2.645623093943934E-12 1.169676554899786E-8 -7.918566980059226E-11 3.386633910332274E-9 1.387120088890232E-12
node 2.69300485706291E-14 -6.885607909544009E-14 -7.918566980059226E-11 6.292067495989404E-9 -6.300453373228552E-9 -4.903288482064328E-11
peri -3.584924899937195E-13 9.891286213269433E-13 3.386633910332274E-9 -6.300453373228552E-9 7.262732466249939E-9 4.947787921143815E-11
i -2.041175288308986E-15 5.518383297216374E-15 1.387120088890232E-12 -4.903288482064328E-11 4.947787921143815E-11 3.06906430997868E-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 17.0   n/a MPO433731  

266606 (2008 KR38)          Discovered 2008-May-30 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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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
2073-Sep-25 21:39 00:01 Iris 0.0481111001036437 0.0480913230308146 0.048130877424145 4.13848898005575 4.13848895118315 2478476.402021431 1.052511520067 1000.87365033089 74.3094028889261 -9.98060576018999 18209.0360217077 T 17 CATAB v2.0f-lin.ifort 2020-Aug-25 18:07:56 2020-Aug-25 18:07
2077-Jun-03 22:14 00:01 Iris 0.0151944607467217 0.0151768509768593 0.0152120797128255 3.85369978859567 3.85369969041865 2479823.426344095 1.25108160539978 1058.43869935642 73.9744476382097 -34.0555839278936 17287.7543599124 T 17 CATAB v2.0f-lin.ifort 2020-Aug-25 18:07:56 2020-Aug-25 18:07
2081-Feb-09 07:59 00:01 Iris 0.0107046298332032 0.0106869390714194 0.0107223385448262 3.67190052570942 3.6719003794545 2481169.832708986 1.48436973201323 1121.79552077906 73.6574932427951 38.2605081595521 13499.4847191523 T 17 CATAB v2.0f-lin.ifort 2020-Aug-25 18:07:56 2020-Aug-25 18:07
2084-Oct-19 07:03 00:02 Iris 0.0272804834606403 0.0272576130498661 0.0273033553188163 3.5174864053382 3.51748634542968 2482517.794033417 1.69679927242657 1181.88922581635 73.214691353397 15.4046606964881 15164.6162092091 T 17 CATAB v2.0f-lin.ifort 2020-Aug-25 18:07:56 2020-Aug-25 18:07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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