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382277 (2012 TK218)
Classification: Outer Main-belt Asteroid          SPK-ID: 2382277
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287563732290786 6.3087e-08  
a 3.21917290614502 6.3756e-08 au
q 2.804683877952474 2.0031e-07 au
i .4035383384457916 1.0679e-05 deg
node 221.7803976403963 0.0010064 deg
peri 44.61451274430288 0.0010074 deg
M 211.3832200507612 4.1273e-05 deg
tp 2459871.423941130744
(2022-Oct-18.92394113)
0.00023941 TDB
period 2109.671726935258
5.78
6.2673e-05
1.716e-07
d
yr
n .170642662270009 5.0693e-09 deg/d
Q 3.633661934337566 7.1964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      7090 days (19.41 yr)  
   first obs. used      1999-05-19  
   last obs. used      2018-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69482  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:08:34  

Additional Information
 Earth MOID = 1.78879 au 
 Jupiter MOID = 1.44779 au 
 T_jup = 3.176 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457079.5 (2015-Feb-26.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302021184302992 6.4681e-08  
q 2.804099571229695 2.0637e-07 au
tp 2457754.475103975946
(2016-Dec-31.97510398)
0.00024364 TDB
node 222.5621775733279 0.001022 deg
peri 42.44434019592372 0.001023 deg
i .4001360737282479 1.0626e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      7090 days (19.41 yr)  
   first obs. used      1999-05-19  
   last obs. used      2018-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69482  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:08:34  

Additional Information
 Jupiter MOID = 1.44779 au 
 T_jup = 3.176 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.183602785737485E-15 -1.288386553938665E-14 -7.345675362958287E-12 -4.999786116994821E-14 -1.274452471445989E-12 3.694262120808539E-16
q -1.288386553938665E-14 4.258839404631567E-14 2.059363969691792E-11 2.223554911557072E-13 3.315514736479132E-12 -2.628619145597158E-15
tp -7.345675362958287E-12 2.059363969691792E-11 5.936076401728182E-8 -3.3538000633396E-12 1.093226004321486E-8 2.561441464105157E-12
node -4.999786116994821E-14 2.223554911557072E-13 -3.3538000633396E-12 1.044566862906199E-6 -1.044547194014398E-6 -4.431450197162128E-9
peri -1.274452471445989E-12 3.315514736479132E-12 1.093226004321486E-8 -1.044547194014398E-6 1.046578653926272E-6 4.431867341035754E-9
i 3.694262120808539E-16 -2.628619145597158E-15 2.561441464105157E-12 -4.431450197162128E-9 4.431867341035754E-9 1.129212461427464E-10

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 16.4   n/a MPO418952  
diameter diameter 2.632 km 0.696 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

382277 (2012 TK218)          Discovered 2010-Mar-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-12-19

[ show close-approach data ]
Alternate Designations
 2012 TK218 = 2010 JS48 = 2010 MZ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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